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1. 发明申请

US20160211943A1 APPARATUS AND METHOD FOR PERFORMING CHANNEL DECODING OPERATION BASED ON EFFECTIVE NOISE IN MOBILE COMMUNICATION SYSTEM 有权
标题翻译：基于移动通信系统中有效噪声进行通道解码操作的装置和方法
公开(公告)号：US20160211943A1
公开(公告)日：2016-07-21
申请号：US15003388
申请日：2016-01-21
申请人： Young-Seok Jung , Min-Goo Kim , In-Hyoung Kim , Chae-Hag Yi
发明人： Young-Seok Jung , Min-Goo Kim , In-Hyoung Kim , Chae-Hag Yi
IPC分类号： H04L1/00 , H04L25/02
CPC分类号： H04L1/0054 , H04L1/0047 , H04L25/0202
摘要： A method and apparatus are provided for performing a channel decoding operation based on effective noise in a mobile communication system. The method includes detecting effective noise including additive noise that occurs in a channel environment between the signal receiving apparatus and a signal transmitting apparatus and channel estimation noise that occurs during a channel estimating operation the signal receiving apparatus; generating a log likelihood ratio (LLR) based on the detected effective noise; and performing channel decoding based on the generated LLR.
摘要翻译：提供了一种用于在移动通信系统中基于有效噪声执行信道解码操作的方法和装置。该方法包括检测在信号接收装置和信号发送装置之间的信道环境中发生的附加噪声和在信道接收装置的信道估计操作期间发生的信道估计噪声的有效噪声; 基于检测到的有效噪声产生对数似然比（LLR）; 并且基于所生成的LLR执行信道解码。

2. 发明授权

US09930550B2 Method and apparatus for controlling modem in wireless communication system 有权
公开(公告)号：US09930550B2
公开(公告)日：2018-03-27
申请号：US14978692
申请日：2015-12-22
申请人： Se-Bin Im , Min-Goo Kim , Sung-Soo Kim , Chae-Hag Yi
发明人： Se-Bin Im , Min-Goo Kim , Sung-Soo Kim , Chae-Hag Yi
IPC分类号： H04L1/00 , H04W24/08 , H04W72/12
CPC分类号： H04W24/08 , H04W72/1247
摘要： A method and apparatus for controlling a modem of a user equipment (UE) in a wireless communication system is provided. The method includes generating at least one modem control information determined based on information related to a wireless communication environment, when at least a portion of the wireless communication environment is changed, updating a priority stored in a database of the UE based on the changed wireless communication environment and controlling the modem of the UE using the priority-updated modem control information.

3. 发明授权

US10218451B2 Communication device for performing carrier search in TD-SCDMA system and method of controlling same 有权
公开(公告)号：US10218451B2
公开(公告)日：2019-02-26
申请号：US15094231
申请日：2016-04-08
申请人： Do-Yun Kim , Hyun-Seok Yu , Won-Seok Park , Jeong-Gyun Yu , Chae-Hag Yi
发明人： Do-Yun Kim , Hyun-Seok Yu , Won-Seok Park , Jeong-Gyun Yu , Chae-Hag Yi
IPC分类号： H04B17/318 , H04L27/26 , H04W8/00 , H04W24/08 , H04W48/16
摘要： A communication device and method operating in a wireless communication system is provided. The communication device includes a memory configured to store frequency history information; and a processor electrically connected to the memory, wherein the processor is configured to measure reception power of each of a plurality of first signals included in a first band, determine a first candidate frequency set according to a strength of each measured reception power, determine a second candidate frequency set updated from the first candidate frequency set based on the frequency history information, and determine whether a cell corresponding to each frequency included in the second candidate frequency set exists.

4. 发明授权

US06263011B1 Receiver for spread spectrum communication system capable of shortening acquisition time 失效
标题翻译：用于扩频通信系统的接收机能够缩短采集时间
公开(公告)号：US06263011B1
公开(公告)日：2001-07-17
申请号：US09104638
申请日：1998-06-25
申请人： Seung-Kwan Paik , Pil-Ho Kim , Chae-Hag Yi
发明人： Seung-Kwan Paik , Pil-Ho Kim , Chae-Hag Yi
IPC分类号： H04L2730
CPC分类号： H04B1/7075 , H04L27/2278
摘要： A receiver is provided for use in a spread spectrum communication system for receiving a spread spectrum signal having a modulated PN code, the receiver including: an analog-to-digital converter for sampling an input signal in synchronization with a first clock signal, and generating a sampled signal. The first clock signal having n times a frequency of a chip clock signal. Also included is a counter for a counting a number of clocks of the first clock signal to generate a selection signal; a pseudonoise code generator for generating a substantially replica pseudonoise code signal in synchronization with a second clock signal having the frequency of the chip clock signal; a memory for storing the sampled signal in synchronization with the second clock signal; a selector for selecting one of the sampled signals stored in the memory in response to the selection signal; a demodulator for demodulating the pseudonoise code signal from the sampled signal; an accumulator for accumulating outputs of the demodulator during a cycle of the second clock signal to generate an accumulated acquisition value; and a comparator for comparing the accumulated acquisition value with a threshold value, generating an acquisition success signal if the accumulated acquisition value is greater than the threshold, and generating a hold signal if the accumulated acquisition value is less than the threshold,
摘要翻译：提供接收机用于扩展频谱通信系统，用于接收具有调制PN码的扩展频谱信号，该接收机包括：模数转换器，用于与第一时钟信号同步地对输入信号进行采样，并产生采样信号。第一时钟信号具有芯片时钟信号频率的n倍。还包括用于计数第一时钟信号的多个时钟以产生选择信号的计数器; 伪噪声码发生器，用于与具有码片时钟信号的频率的第二时钟信号同步地产生基本上复制的伪噪声码信号; 用于与第二时钟信号同步地存储采样信号的存储器; 选择器，用于响应于选择信号选择存储在存储器中的一个采样信号; 解调器，用于解调来自采样信号的伪噪声码信号; 累加器，用于在所述第二时钟信号的周期期间累积所述解调器的输出，以产生累积的获取值; 以及用于将累积获取值与阈值进行比较的比较器，如果所述累积获取值大于所述阈值则生成获取成功信号，并且如果所述累积获取值小于所述阈值则产生保持信号，

5. 发明授权

US07151791B2 Device for regenerating data from signals transmitted through plural antenna 有权
标题翻译：用于通过多个天线发送的信号再生数据的装置
公开(公告)号：US07151791B2
公开(公告)日：2006-12-19
申请号：US10131174
申请日：2002-04-24
申请人： Chae-Hag Yi
发明人： Chae-Hag Yi
IPC分类号： H04B1/69
CPC分类号： H04B7/0604 , H04B1/712 , H04B7/0619 , H04B7/0808 , H04B2201/70701
摘要： A device for restoring data from signals transmitted through plural antenna includes a plurality of despreading units to restore pilot and data signals by means of pilot and data Walsh codes, a path controller to selectively activate the despreading units, an antenna-waiting signal generator to generate an antenna-waiting signal with the pilot signals output from the despreading units, an adder to sum the data signals output from the despreading units, and a controller to control the path controller and the adder in accordance with a transmission scheme of a base station. The invention provides one receiver system for a mobile terminal to be adaptable to various environments of transmission diversity with base stations, such as orthogonal transmission diversity (OTD), time-switched transmission diversity (TSTD), selection diversity (STD), or transmission antenna array (TXAA).
摘要翻译：用于从通过多个天线发送的信号恢复数据的装置包括多个解扩单元，用于通过导频和数据沃尔什码恢复导频和数据信号，选择性地激活解扩单元的路径控制器，天线等待信号发生器，以产生具有从解扩单元输出的导频信号的天线等待信号，用于对从解扩单元输出的数据信号求和的加法器和控制器，以根据基站的传输方案来控制路径控制器和加法器。本发明提供一种用于移动终端的接收机系统，以适应于诸如正交传输分集（OTD），时间交换传输分集（TSTD），选择分集（STD）或发射天线等基站的各种传输分集环境阵列（TXAA）。

6. 发明授权

US09088411B1 Modem and driving method thereof 有权
标题翻译：调制解调器及其驱动方法
公开(公告)号：US09088411B1
公开(公告)日：2015-07-21
申请号：US14497658
申请日：2014-09-26
申请人： Hae-Chul Lee , Chae-Hag Yi , Jun-Ho Huh
发明人： Hae-Chul Lee , Chae-Hag Yi , Jun-Ho Huh
IPC分类号： H04B1/38 , H04L5/16 , H04L5/14 , H04L7/00 , H04L25/02
CPC分类号： H04L25/0212 , H04B1/7085 , H04L25/0222
摘要： Methods and apparatuses are provided for driving a modem. A Channel Impulse Response (CIR) is computed through channel estimation. An estimation time position is estimated by applying a weighted-average method to the CIR. A time offset is measured by comparing the estimation time position with a reference time position. The time offset is compensated for.
摘要翻译：提供了用于驱动调制解调器的方法和装置。通过信道估计来计算信道脉冲响应（CIR）。通过对CIR进行加权平均法估计估计时间位置。通过将估计时间位置与参考时间位置进行比较来测量时间偏移。补偿时间偏移。

7. 发明授权

US06298462B1 Data transmission method for dual diversity systems 失效
标题翻译：双分集系统的数据传输方法
公开(公告)号：US06298462B1
公开(公告)日：2001-10-02
申请号：US09099488
申请日：1998-06-18
申请人： Chae-Hag Yi
发明人： Chae-Hag Yi
IPC分类号： H03M1300
CPC分类号： H03M13/151 , H03M13/1515
摘要： Methods for effectively transmitting data in dual diversity systems by utilizing Reed-Solomon coding is provided. Two Reed-Solomon (RS) coding schemes are considered for dual diversity systems: RS(n,k) codes with symbol diversity order of 2 and RS (n,k/2) codes with symbol diversity order of 1. We show that the second scheme utilizes the inherent error detecting capability of low rate RS codes. The RS (n, k/2) codes with symbol diversity order 1 significantly reduce the probability of undetected word error among accepted codeword and give comparable throughput to that of RS (n,k) codes with symbol diversity order 2.
摘要翻译：提供了通过利用里德 - 所罗门编码在双分集系统中有效传输数据的方法。对于双分集系统考虑了两个里德 - 所罗门（RS）编码方案：符号分集阶数为2的RS（n，k）码和符号分集阶数为1的RS（n，k / 2）码。第二种方案利用低速率RS码的固有误差检测能力。具有符号分集阶数1的RS（n，k / 2）码显着地降低了被接受码字之间未被检测到的字错误的概率，并给出了具有符号分集阶数2的RS（n，k）码的可比吞吐量。

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