公开(公告)号：US08050358B2

公开(公告)日：2011-11-01

申请号：US12064767

申请日：2006-08-24

申请人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04L27/00

CPC分类号： H04B7/0678 ,  H04J13/10

摘要： The present invention relates to a transmit diversity method of a mobile communication system and a base station transmitting apparatus using the same. A first code and a second code that is diversity-encoded from the first code are generated, and transmit symbols are spread with the first code and the second code. A first transmit symbol spread with the first code and a second transmit symbol spread with the second code are mapped to symbols in frequency and time domains in a frame and transmitted through antennas. Therefore, various diversity techniques can be provided to the mobile communication system, and the diversity technique is not restricted to symbols transmitted to the same mobile station and can also be applied to a 1-bit channel.

摘要翻译： 本发明涉及一种移动通信系统的发射分集方法及其使用的基站发送装置。 生成从第一代码分集编码的第一代码和第二代码，并且利用第一代码和第二代码扩展发送符号。 利用第一码扩展的第一发送符号和用第二码扩展的第二发送符号被映射到帧中的频域和时域中的符号，并通过天线发送。 因此，可以向移动通信系统提供各种分集技术，并且分集技术不限于发送到同一移动台的符号，并且也可以应用于1比特信道。

公开(公告)号：US07969964B2

公开(公告)日：2011-06-28

申请号：US12162237

申请日：2007-07-25

申请人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Young-Jo Ko ,  Kapseok Chang ,  Hyoseok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Young-Jo Ko ,  Kapseok Chang ,  Hyoseok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04J3/06

CPC分类号： H04W56/001 ,  H04J11/0069 ,  H04J11/0093 ,  H04L5/0037 ,  H04L5/005 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2675 ,  H04W36/0061 ,  H04W36/08 ,  H04W56/00

摘要： In a cellular system in which OFDM is used, a forward link synchronization channel, a common pilot channel structure, an initial cell searching method of a mobile station, and an adjacent cell searching method for handover are required.A method of transmitting a forward synchronization signal in a wireless communication system according to the present invention includes generating a frame comprised of a plurality of sync blocks; and transmitting the frame through a forward link, wherein the frame comprises primary synchronization channel sequences which provide timing information of the sync blocks and a plurality of secondary synchronization channel sequences which provide timing information of the frame, wherein a cell identifier is specified by a combination of the primary synchronization channel sequence and a hopping code word specified by the plurality of the secondary synchronization channel sequences. Therefore, the cell searching time can be efficiently reduced in an OFDM system.

摘要翻译： 在使用OFDM的蜂窝系统中，需要前向链路同步信道，公共导频信道结构，移动台的初始小区搜索方法以及切换用的相邻小区搜索方法。 根据本发明的在无线通信系统中发送正向同步信号的方法包括：生成由多个同步块组成的帧; 并且通过前向链路发送所述帧，其中所述帧包括提供所述同步块的定时信息的主同步信道序列和提供所述帧的定时信息的多个次同步信道序列，其中小区标识符由组合 的主同步信道序列和由多个次同步信道序列指定的跳频码字。 因此，可以在OFDM系统中有效地减少小区搜索时间。

公开(公告)号：US20100074448A1

公开(公告)日：2010-03-25

申请号：US12598256

申请日：2008-03-07

申请人： Hyeong-Geun Park ,  Il-Gyu Kim ,  Kap-Seok Chang ,  Young-Jo Ko ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Hyeong-Geun Park ,  Il-Gyu Kim ,  Kap-Seok Chang ,  Young-Jo Ko ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04K1/04

CPC分类号： H04W48/10 ,  H04J13/00 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0067 ,  H04L1/0071 ,  H04L1/1845 ,  H04L25/03866 ,  H04L25/05 ,  H04W4/18 ,  H04W48/08 ,  H04W72/0446

摘要： A signal transmitting method according to an exemplary embodiment of the present invention includes channel-coding broadcasting channel information by using a first scrambling code in a first frame within a broadcasting channel information updating period including a plurality of frames, and channel-coding the broadcasting channel information by using a second scrambling code in a second frame within the broadcasting channel information updating period. The second scrambling code is different from the first scrambling code.

摘要翻译： 根据本发明的示例性实施例的信号发送方法包括在包括多个帧的广播信道信息更新周期内通过使用第一帧中的第一加扰码来对广播信道信道进行信道编码，并且对广播信道进行信道编码 信息通过在广播频道信息更新周期内的第二帧中使用第二扰码。 第二扰码与第一扰码不同。

公开(公告)号：US07676208B2

公开(公告)日：2010-03-09

申请号：US11636201

申请日：2006-12-08

申请人： Il-Gu Lee ,  Sok-Kyu Lee ,  Hee-jung Yu ,  Eun-Young Choi ,  Chan-Ho Yoon ,  Jung-Bo Son ,  Deuk-Su Lyu ,  Seung-Wook Min ,  Tae-hyun Jeon ,  Seung-Chan Bang ,  Seung-Ku Hwang

发明人： Il-Gu Lee ,  Sok-Kyu Lee ,  Hee-jung Yu ,  Eun-Young Choi ,  Chan-Ho Yoon ,  Jung-Bo Son ,  Deuk-Su Lyu ,  Seung-Wook Min ,  Tae-hyun Jeon ,  Seung-Chan Bang ,  Seung-Ku Hwang

IPC分类号： H04B1/06 ,  H04Q7/20

CPC分类号： H04W52/52

摘要： An exemplary automatic gain control device includes: a radio frequency receiver for receiving a plurality of first signals through a plurality of antennas, respectively controlling gains of the plurality of first received signals, and outputting the plurality of the first signals having the controlled gain as a plurality of second signals; a signal saturation detecting unit for outputting a saturation index determination value when the number of plurality of second signals that are greater than a threshold value is greater than a predetermined number; and a gain controlling unit for comparing power values of the plurality of second signals to detect one power value, and outputting a gain value determined based on a detected power value and a saturation index determination value to the radio frequency receiver.

摘要翻译： 示例性的自动增益控制装置包括：射频接收器，用于通过多个天线接收多个第一信号，分别控制多个第一接收信号的增益，并将具有受控增益的多个第一信号作为 多个第二信号; 信号饱和检测单元，当大于阈值的多个第二信号的数量大于预定数量时，输出饱和度指标确定值; 以及增益控制单元，用于对所述多个第二信号的功率值进行比较，以检测一个功率值，并将基于检测到的功率值和饱和度指标确定值确定的增益值输出到所述射频接收器。

公开(公告)号：US20100046432A1

公开(公告)日：2010-02-25

申请号：US12517767

申请日：2007-12-05

申请人： Kap-Seok Chang ,  Hyeong-Geun Park ,  Ii-Gyu Kim ,  Young-Jo Ko ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Kap-Seok Chang ,  Hyeong-Geun Park ,  Ii-Gyu Kim ,  Young-Jo Ko ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04W4/00 ,  H04L27/00

CPC分类号： H04B7/12 ,  H04B7/068 ,  H04L1/0606 ,  H04L5/0023 ,  H04L25/03343

摘要： A base station applies frequency switching transmission diversity and a preceding vector to a synchronization channel and applies a space-frequency block coding and a preceding vector to a broadcast channel. The base station controls the synchronization channel and the broadcast channel to be positioned adjacent each other and then generates and transmits a downlink frame. The base station includes partial information on the number of antennas in the synchronization channel, and other information thereon in the broadcast channel.

摘要翻译： 基站将频率切换发送分集和前一向量应用于同步信道，并将空间频带块编码和前一矢量应用于广播信道。 基站控制同步信道和广播信道彼此相邻，然后生成并发送下行链路帧。 基站包括关于同步信道中的天线数量的部分信息，以及广播信道中的其他信息。

公开(公告)号：US20100002806A1

公开(公告)日：2010-01-07

申请号：US12443686

申请日：2007-09-21

申请人： Yu-Ro Lee ,  Min-Ho Cheong ,  Hee-Jung Yu ,  Jong-Ee Oh ,  Chan-Ho Yoon ,  Young-Gyun Kim ,  Sok-Kyu Lee ,  Seung-Chan Bang

发明人： Yu-Ro Lee ,  Min-Ho Cheong ,  Hee-Jung Yu ,  Jong-Ee Oh ,  Chan-Ho Yoon ,  Young-Gyun Kim ,  Sok-Kyu Lee ,  Seung-Chan Bang

IPC分类号： H04L27/00

CPC分类号： H04L27/2647

摘要： Provided are an apparatus for receiving signals in an OFDM communication system using multiple transmission/reception antennas and a method thereof. The method includes modulating a predetermined part of a data stream based on a multi-dimensional reception procedure to generate a first modulated data stream; regenerating a symbol corresponding to the modulated data stream; eliminating the regenerated symbol from a remained data stream; modulating the eliminated data stream to generate a second modulated data stream; and outputting an output signal obtained by serializing the first modulated data stream and the second modulated data stream.

摘要翻译： 提供一种在使用多个发送/接收天线的OFDM通信系统中接收信号的装置及其方法。 该方法包括：基于多维接收过程来调制数据流的预定部分以产生第一调制数据流; 再生对应于调制数据流的符号; 从剩余的数据流中消除再生符号; 调制消除的数据流以产生第二调制数据流; 并输出通过串行化第一调制数据流和第二调制数据流而获得的输出信号。

公开(公告)号：US07555034B2

公开(公告)日：2009-06-30

申请号：US11240546

申请日：2005-09-30

申请人： Eun-Jeong Shin ,  Nam-Il Kim ,  Young-Hoon Kim ,  Seung-Chan Bang ,  Sang-Woo Nam

发明人： Eun-Jeong Shin ,  Nam-Il Kim ,  Young-Hoon Kim ,  Seung-Chan Bang ,  Sang-Woo Nam

IPC分类号： H04B1/00

CPC分类号： H04J3/0608

摘要： Provided is an apparatus and method for detecting timing errors based on characteristics of cyclic correlation. The apparatus and method can detect the timing errors of many users by using the cyclic characteristics of a midamble code at a time and detects the timing errors based on the characteristics of cyclic correlation to reduce the time required for detecting the users and lower the complexity in terms of Hardware. The apparatus includes a detection section controller, a register, a midamble generator, a midamble shifter, an accumulator, an adder, a shift register and a timing error detector.

摘要翻译： 提供了一种基于循环相关特性来检测定时误差的装置和方法。 该装置和方法可以通过一次使用中间码的循环特性来检测许多用户的定时误差，并且基于循环相关特性检测定时误差，以减少检测用户所需的时间并降低复杂度 硬件条款。 该装置包括检测部分控制器，寄存器，中间码发生器，中置码移位器，累加器，加法器，移位寄存器和定时误差检测器。

公开(公告)号：US20090067370A1

公开(公告)日：2009-03-12

申请号：US12093428

申请日：2006-11-10

申请人： Il-Gyu Kim ,  Nam-Il Kim ,  Hyeong-Geun Park ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Il-Gyu Kim ,  Nam-Il Kim ,  Hyeong-Geun Park ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04W36/00 ,  H04B1/713

CPC分类号： H04B1/7083 ,  H04J11/0073 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2662 ,  H04L27/2675 ,  H04L27/2684

摘要： Provided are a cell search method, a frame transmission method thereof, and a forward link frame structure thereof. The cell search method used by a terminal to search a target cell using reception signals received from a plurality of base stations, each base station transmitting a frame of its cell, in an Orthogonal Frequency-Division Multiplexing (OFDM) cellular system comprising a plurality cells to which a cell-specific scrambling code is assigned includes: detecting a hopping pattern of the target cell using reception sync channel symbols, which are signals corresponding to sync channel symbol positions of the reception signals, wherein the frame of each cell comprises M sync channel symbols code-hopped according to a hopping pattern of the cell, where M is a natural number equal to or greater than 2, each hopping pattern containing M sync channel code sequences and respectively corresponding to each code group to which a scrambling code of each cell belongs, and an arbitrary hopping pattern used in the OFDM cellular system differs from a cyclically shifted result of the hopping pattern, other hopping patterns, or cyclically shifted results of the other hopping patterns; and detecting a code group of the target cell based on the detected hopping pattern. Accordingly, a cell search time and the complexity of the cell search can be reduced.

摘要翻译： 提供了一种小区搜索方法，其帧发送方法及其前向链路帧结构。 终端使用的小区搜索方法，在使用从多个基站接收的接收信号来搜索目标小区，每个基站在正交频分复用（OFDM）蜂窝系统中的每个基站发送其小区的帧，所述正交频分复用（OFDM）蜂窝系统包括多个小区 分配小区特定扰码的步骤包括：使用接收同步信道符号来检测目标小区的跳频模式，所述接收同步信道符号是对应于接收信号的同步信道符号位置的信号，其中每个小区的帧包括M个同步信道 根据小区的跳频模式跳码的符号，其中M是等于或大于2的自然数，每个跳频模式包含M个同步信道码序列，并且分别对应于每个小区的扰码的每个码组 属于，并且在OFDM蜂窝系统中使用的任意跳频模式与跳频模式的循环移位结果不同 跳频图案或其他跳频图案的循环移位结果; 以及基于检测到的跳频图案来检测目标小区的代码组。 因此，可以减少小区搜索时间和小区搜索的复杂度。

公开(公告)号：US07420957B2

公开(公告)日：2008-09-02

申请号：US11233996

申请日：2005-09-22

申请人： Young-Hoon Kim ,  Seung-Chan Bang

发明人： Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04J1/00

CPC分类号： H04W52/42 ,  H04B17/336 ,  H04L27/2656 ,  H04L27/2657 ,  H04L2025/03414

摘要： The present invention relates to a mobile terminal for efficiently measuring a carrier to noise and interference ratio (CNIR) in an orthogonal frequency division multiplexing (OFDM) mobile communication system and a CNIR method thereof. The mobile terminal includes a frequency offset and frame detector for detecting frame timing information and frequency offset from a received signal, a demodulator for demodulating the received signal by using the detected frame timing information and frequency offset, a subchannel separator for separating a data symbol from symbols outputted by the demodulator, a channel estimating and equalizing unit for estimating and equalizing a channel for the corresponding subchannel from the data symbol, and a CNIR measuring unit for transmitting a measured current CNIR to the base station.

摘要翻译： 本发明涉及一种用于在正交频分复用（OFDM）移动通信系统及其CNIR方法中有效测量载波与噪声和干扰比（CNIR）的移动终端。 移动终端包括用于从接收到的信号检测帧定时信息和频率偏移的频率偏移和帧检测器，用于通过使用检测到的帧定时信息和频率偏移来解调接收信号的解调器，用于将数据符号从 由解调器输出的符号，用于从数据符号估计和均衡相应子信道的信道的信道估计和均衡单元，以及用于将测量的当前CNIR发送到基站的CNIR测量单元。

公开(公告)号：US20060133260A1

公开(公告)日：2006-06-22

申请号：US11233996

申请日：2005-09-22

申请人： Young-Hoon Kim ,  Seung-Chan Bang

发明人： Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04J11/00 ,  H04J1/00

CPC分类号： H04W52/42 ,  H04B17/336 ,  H04L27/2656 ,  H04L27/2657 ,  H04L2025/03414

摘要： The present invention relates to a mobile terminal for efficiently measuring a carrier to noise and interference ratio (CNIR) in an orthogonal frequency division multiplexing (OFDM) mobile communication system and a CNIR method thereof. The mobile terminal includes a frequency offset and frame detector for detecting frame timing information and frequency offset from a received signal, a demodulator for demodulating the received signal by using the detected frame timing information and frequency offset, a subchannel separator for separating a data symbol from symbols outputted by the demodulator, a channel estimating and equalizing unit for estimating and equalizing a channel for the corresponding subchannel from the data symbol, and a CNIR measuring unit for transmitting a measured current CNIR to the base station.

摘要翻译： 本发明涉及一种用于在正交频分复用（OFDM）移动通信系统及其CNIR方法中有效测量载波与噪声和干扰比（CNIR）的移动终端。 移动终端包括用于从接收到的信号检测帧定时信息和频率偏移的频率偏移和帧检测器，用于通过使用检测到的帧定时信息和频率偏移来解调接收信号的解调器，用于将数据符号从 由解调器输出的符号，用于从数据符号估计和均衡相应子信道的信道的信道估计和均衡单元，以及用于将测量的当前CNIR发送到基站的CNIR测量单元。