公开(公告)号：US07953172B2

公开(公告)日：2011-05-31

申请号：US11725977

申请日：2007-03-20

Applicant: Gyu-Bum Kyung ,  Jae-Yoel Kim ,  Dong-Seek Park ,  Sung-Eun Park ,  Chi-Woo Lim ,  Hong-Sil Jeong ,  Seung-Hoon Choi

Inventor： Gyu-Bum Kyung ,  Jae-Yoel Kim ,  Dong-Seek Park ,  Sung-Eun Park ,  Chi-Woo Lim ,  Hong-Sil Jeong ,  Seung-Hoon Choi

IPC: H04L27/34

CPC classification number: H04L27/0008 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0033 ,  H04L1/0036

Abstract: Disclosed is an apparatus and method for transmitting/receiving a signal in a communication system, in which an MCS level or a modulation scheme to be used to an information vector to be transmitted is determined when the information vector is generated, and a codeword vector is generated by encoding the information vector in an encoding scheme corresponding to the determined MCS level or modulation scheme. Thus, a signal can be transmitted in such a manner as to have optimal performance for each MCS level or modulation scheme.

Abstract translation: 公开了一种用于在通信系统中发送/接收信号的装置和方法，其中当生成信息向量时，确定要用于要发送的信息向量的MCS级别或调制方案，并且码字向量是 通过对与所确定的MCS等级或调制方案相对应的编码方案对信息向量进行编码而生成。 因此，可以以对于每个MCS级别或调制方案具有最佳性能的方式来发送信号。

公开(公告)号：US07814393B2

公开(公告)日：2010-10-12

申请号：US11583472

申请日：2006-10-19

Applicant: Gyu-Bum Kyung ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Seung-Hoon Choi ,  Hong-Sil Jeong ,  Chi-Woo Lim

Inventor： Gyu-Bum Kyung ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Sung-Eun Park ,  Seung-Hoon Choi ,  Hong-Sil Jeong ,  Chi-Woo Lim

IPC: H03M13/00

CPC classification number: H03M13/116 ,  H03M13/635

Abstract: Disclosed is a device and method for coding a block low density parity check (LDPC) code having a variable length. The a device and method include receiving an information word; and coding the information word into a block LDPC code according to a first parity check matrix or a second parity check matrix depending on a length to be applied when generating the information word into the block LDPC code.

Abstract translation: 公开了一种用于对具有可变长度的块低密度奇偶校验（LDPC）码进行编码的装置和方法。 该装置和方法包括接收信息字; 根据第一奇偶校验矩阵或第二奇偶校验矩阵，将该信息字编码为块LDPC码，这取决于在将信息字生成到块LDPC码时要施加的长度。

公开(公告)号：US20100172341A1

公开(公告)日：2010-07-08

申请号：US12655705

申请日：2010-01-06

Applicant: Sung-Eun Park ,  Jae-Weon Cho ,  Seung-Hoon Choi ,  Chi-Woo Lim ,  Song-Nam Hong

Inventor： Sung-Eun Park ,  Jae-Weon Cho ,  Seung-Hoon Choi ,  Chi-Woo Lim ,  Song-Nam Hong

IPC: H04J3/06 ,  H04L27/28

CPC classification number: H04W56/0015 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2614 ,  H04L27/2626 ,  H04L27/2655

Abstract: A Synchronization Channel (SCH) transmission method includes generating a Primary SCH (P-SCH) sequence according to supplementary information. The supplementary information includes at least one of Base Station (BS) type information, Fast Fourier Transform (FFT) size information, BandWidth (BW) information, group information, sector information, and carrier type information. The method also includes modulating the P-SCH sequence and mapping the modulated P-SCH sequence to subcarriers within a predefined subcarrier set. The subcarriers are included in the subcarrier set being spaced one subcarrier interval apart. The method further includes generating a P-SCH symbol by Orthogonal Frequency Division Multiplexing (OFDM)-modulating the P-SCH sequence mapped to the subcarriers, and transmitting the P-SCH symbol.

Abstract translation: 同步信道（SCH）发送方法包括根据补充信息生成主SCH（P-SCH）序列。 补充信息包括基站（BS）类型信息，快速傅里叶变换（FFT）大小信息，带宽（BW）信息，组信息，扇区信息和载波类型信息中的至少一个。 该方法还包括调制P-SCH序列并将调制的P-SCH序列映射到预定子载波集内的子载波。 子载波被包括在间隔一个子载波间隔的子载波集合中。 该方法还包括通过正交频分复用（OFDM）生成P-SCH符号，调制映射到子载波的P-SCH序列，并发送P-SCH符号。

公开(公告)号：US20080317151A1

公开(公告)日：2008-12-25

申请号：US12214281

申请日：2008-06-18

Applicant: Chi-Woo Lim ,  Tae-Young Kim ,  Ho-Kyu Choi ,  Jae-Weon Cho ,  Hyeon-Woo Lee ,  Dong-Seek Park

Inventor： Chi-Woo Lim ,  Tae-Young Kim ,  Ho-Kyu Choi ,  Jae-Weon Cho ,  Hyeon-Woo Lee ,  Dong-Seek Park

IPC: H04L27/28

CPC classification number: H04L5/0048 ,  H04L5/0007 ,  H04L5/0032 ,  H04L25/0226

Abstract: A method for forming a subchannel in a communication system where a first communication system and a second communication system coexist. The method includes determining a first tile set by arranging first tiles remaining after forming at least one first subchannel for the first communication system among frequency resources, including a plurality of tiles, available for the first communication system; determining a second tile set by inserting second tiles which are independent of the frequency resources and are available for the second communication system into the determined first tile set at predetermined positions; forming at least one second subchannel for the second communication system by selecting a predetermined number of tiles from the second tile set; and performing communication using at least one of the first subchannel and the second subchannel.

Abstract translation: 一种在第一通信系统和第二通信系统共存的通信系统中形成子信道的方法。 该方法包括通过在包括可用于第一通信系统的多个瓦片的频率资源中形成用于第一通信系统的至少一个第一子信道之后布置剩余的第一瓦片来确定第一瓦片组; 通过插入独立于所述频率资源的第二瓦片来确定第二瓦片组，并且可将所述第二通信系统用于在所述确定的在预定位置处的第一瓦片组; 通过从所述第二瓦片组中选择预定数量的瓦片来形成用于所述第二通信系统的至少一个第二子信道; 以及使用所述第一子信道和所述第二子信道中的至少一个来执行通信。

公开(公告)号：US20080250305A1

公开(公告)日：2008-10-09

申请号：US11800022

申请日：2007-05-03

Applicant: Chi-Woo Lim ,  Sung-Eun Park ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Seung-Hoon Choi ,  Gyu-Bum Kyung ,  Hong-Sil Jeong ,  Thierry Lestable

Inventor： Chi-Woo Lim ,  Sung-Eun Park ,  Dong-Seek Park ,  Jae-Yoel Kim ,  Seung-Hoon Choi ,  Gyu-Bum Kyung ,  Hong-Sil Jeong ,  Thierry Lestable

IPC: H03M13/09 ,  G06F11/10

CPC classification number: H03M13/033 ,  H03M13/116 ,  H03M13/1171

Abstract: A method for generating a non-binary Low Density Parity Check (LDPC) code. The method includes generating non-binary identity matrixes so as to satisfy at least one condition, wherein the non-binary LDPC code is defined by a parity check matrix, and the parity check matrix includes a plurality of sub-matrixes, which are divided into zero matrixes and the non-binary identity matrixes.

Abstract translation: 一种用于生成非二进制低密度奇偶校验（LDPC）码的方法。 该方法包括生成非二进制单位矩阵以便满足至少一个条件，其中非二进制LDPC码由奇偶校验矩阵定义，并且奇偶校验矩阵包括多个子矩阵，其被划分为 零矩阵和非二进制单位矩阵。

公开(公告)号：US20070204198A1

公开(公告)日：2007-08-30

申请号：US11653724

申请日：2007-01-16

Applicant: Gyu bum Kyung ,  Seung-Hoon Choi ,  Hong-Sil Jeong ,  Jae-Yoel Kim ,  Chi-Woo Lim ,  Sung-Eun Park ,  Young-Kyun Kim ,  Dong-Seek Park ,  Se-Ho Myung ,  Kyeong-Cheol Yang

Inventor： Gyu bum Kyung ,  Seung-Hoon Choi ,  Hong-Sil Jeong ,  Jae-Yoel Kim ,  Chi-Woo Lim ,  Sung-Eun Park ,  Young-Kyun Kim ,  Dong-Seek Park ,  Se-Ho Myung ,  Kyeong-Cheol Yang

IPC: H03M13/00

CPC classification number: H03M13/116 ,  H03M13/1151

Abstract: Disclosed is an apparatus and a method for transmitting/receiving a signal in a communication system, which generates an Affine Permutation Matrix-Low Density Parity Check (APM-LDPC) codeword by encoding an information vector in an APM-LDPC encoding scheme which is a preset structured LDPC encoding scheme, and detects the information vector by decoding the signal in a decoding scheme corresponding to the APM-LDPC encoding scheme, thereby making it possible to generate a Low Density Parity Check (LDPC) code in the form of maximizing a girth while minimizing complexity.

Abstract translation: 公开了一种用于在通信系统中发送/接收信号的装置和方法，该通信系统通过对APM-LDPC编码方案中的信息向量进行编码来产生仿射置换矩阵 - 低密度奇偶校验码（APM-LDPC） 通过对与APM-LDPC编码方式相对应的解码方式对信号进行解码来检测信息矢量，从而能够以最大化周长的形式生成低密度奇偶校验码（LDPC）码。 同时尽量减少复杂性。

公开(公告)号：US20070058676A1

公开(公告)日：2007-03-15

申请号：US11496123

申请日：2006-07-31

Applicant: Chi-Woo Lim ,  Gyu-Bum Kyung ,  Dong-Seek Park ,  Jae-Yoel Kim

Inventor： Chi-Woo Lim ,  Gyu-Bum Kyung ,  Dong-Seek Park ,  Jae-Yoel Kim

IPC: H04J3/22

CPC classification number: H04L1/0026 ,  H03M13/1102 ,  H03M13/356 ,  H03M13/6544 ,  H04L1/0041 ,  H04L1/0057 ,  H04L1/0068

Abstract: Disclosed is a method for transmitting a signal in a signal transmission system, which includes demultiplexing a bit stream to be transmitted into a first bit stream and a second bit stream; generating a first coded bit stream by coding the first bit stream according to a first coding rate and generating a second coded bit stream by coding the second bit stream according to a second coding rate; and generating a coded symbol by concatenating the first coded bit stream and the second coded bit stream.

Abstract translation: 公开了一种用于在信号传输系统中发送信号的方法，该方法包括将要发送的比特流解复用为第一比特流和第二比特流; 通过根据第一编码率对第一比特流进行编码来生成第一编码比特流，并且根据第二编码率对第二比特流进行编码来生成第二编码比特流; 以及通过连接所述第一编码比特流和所述第二编码比特流来生成编码符号。

公开(公告)号：US20060009224A1

公开(公告)日：2006-01-12

申请号：US11174828

申请日：2005-07-05

Applicant: Chi-Woo Lim ,  Pan-Yuh Joo ,  Sie-Joon Cho ,  Jae-Weon Cho ,  Young-Bin Chang

Inventor： Chi-Woo Lim ,  Pan-Yuh Joo ,  Sie-Joon Cho ,  Jae-Weon Cho ,  Young-Bin Chang

IPC: H04Q7/20

CPC classification number: H04W28/26 ,  H04L5/0003 ,  H04L5/0005 ,  H04W36/18

Abstract: Disclosed is an apparatus and method for allocating downlink/uplink subchannels for a soft handover in a broadband wireless access communication system, wherein the method includes the steps of configuring FUSC subchannels based on a predetermined FUSC subchannel configuration scheme by using an equal seed value in all cells; allocating a predetermined number of FUSC subchannels of the configured FUSC subchannels as soft handover subchannels; and allocating remaining subchannels, except for the FUSC subchannels allocated as the first subchannels, as non-soft handover subchannels based on the FUSC subchannel configuration scheme by using a specific seed value.

公开(公告)号：US20050288027A1

公开(公告)日：2005-12-29

申请号：US11153816

申请日：2005-06-15

Applicant: Jae-Weon Cho ,  Pan-Yuh Joo ,  Sie-Joon Cho ,  Chi-Woo Lim ,  Young-Bin Chang ,  Seung-Joo Maeng ,  Jae-Hee Cho

Inventor： Jae-Weon Cho ,  Pan-Yuh Joo ,  Sie-Joon Cho ,  Chi-Woo Lim ,  Young-Bin Chang ,  Seung-Joo Maeng ,  Jae-Hee Cho

IPC: H04B7/26 ,  H04W36/18 ,  H04Q7/20

CPC classification number: H04W36/18

Abstract: A method for supporting a handover in a broadband wireless access communication system including an MSS, a serving BS providing service to the MSS, and a plurality of neighbor base stations, in which each of the BSs includes cells using different sub-channel bands. The method includes: measuring, by the BSS, intensities of signals received from the BSs, transmitting to the serving BS a request for a handover based on the measured signal intensities, establishing a connection with a target BS, to which a handover of the MSS is requested, from among the neighbor BSs before terminating a connection with the serving BS, and performing a soft handover by establishing a simultaneous connection with the two BSs in a handover area. The serving BS and the target BS allocate the same sub-channel including the same sub-carriers to the MSS when the mobile subscriber station performs the soft handover.

Abstract translation: 一种用于支持宽带无线接入通信系统中的切换的方法，所述宽带无线接入通信系统包括MSS，向MSS提供服务的服务BS以及多个相邻基站，其中每个BS包括使用不同子信道频带的小区。 该方法包括：通过BSS测量从BS接收的信号的强度，基于测量的信号强度向服务BS发送对切换的请求，建立与目标BS的连接，MSS的切换 在终止与服务BS的连接之前从相邻BS中请求，并且通过在切换区域中建立与两个BS的同时连接来执行软切换。 当移动用户站执行软切换时，服务BS和目标BS向MSS分配包括相同子载波的相同子信道。

公开(公告)号：US20050286449A1

公开(公告)日：2005-12-29

申请号：US11167666

申请日：2005-06-27

Applicant: Hee-Sang Seo ,  Jae-Ho Jeon ,  Jeong-Heon Kim ,  Myung-Kwang Byun ,  Seung-Joo Maeng ,  Soon-Young Yoon ,  Chi-Woo Lim ,  Sie-Joon Cho ,  Young-Bin Chang

Inventor： Hee-Sang Seo ,  Jae-Ho Jeon ,  Jeong-Heon Kim ,  Myung-Kwang Byun ,  Seung-Joo Maeng ,  Soon-Young Yoon ,  Chi-Woo Lim ,  Sie-Joon Cho ,  Young-Bin Chang

IPC: H04J11/00 ,  H04B7/00 ,  H04B7/212 ,  H04B7/26 ,  H04J3/00 ,  H04J3/06

CPC classification number: H04W56/0045 ,  H04B7/2656 ,  H04J3/0682

Abstract: A method for setting a guard interval for distinguishing a transition from a downlink period to an uplink period in a mobile communication system employing a time division duplexing (TDD) scheme, the mobile communication system including a plurality of base stations. The method includes the steps of, simultaneously transmitting by each of the base stations downlink signals from transmission antennas at a first time point based on a processing delay time for a signal to be transmitted; simultaneously receiving by each of the base stations an uplink signal at reception antennas at a second time point; and setting a time interval from the first time point to the second time point as a guard interval for distinguishing a transition from an uplink period to a downlink period.

Abstract translation: 一种用于在采用时分双工（TDD）方案的移动通信系统中设置用于区分从下行链路周期到上行链路周期的转换的保护间隔的方法，所述移动通信系统包括多个基站。 该方法包括以下步骤：根据要发送的信号的处理延迟时间，在第一时间点同时从每个基站发送来自发送天线的下行链路信号; 在每个基站同时接收在第二时间点的接收天线的上行链路信号; 并且将从第一时间点到第二时间点的时间间隔设置为用于区分从上行链路周期到下行链路周期的转换的保护间隔。