公开(公告)号：US20090175161A1

公开(公告)日：2009-07-09

申请号：US12297745

申请日：2007-04-19

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

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

IPC: H04J11/00 ,  H04W40/00 ,  H04L27/28

CPC classification number: H04W52/42 ,  H04B7/0617 ,  H04B7/0623 ,  H04B7/0689 ,  H04B7/12 ,  H04L1/0001 ,  H04L1/0006 ,  H04L1/06 ,  H04L1/1867 ,  H04L1/188 ,  H04L1/1893 ,  H04L5/0053 ,  H04L5/023 ,  H04L27/2626 ,  H04W52/286 ,  H04W52/48 ,  H04W74/085 ,  H04W74/0866

Abstract: A transmission method performed by a mobile station for random access channel (RACH) burst transmission diversity gain is provided. According to the method, by combining and using switching diversity by beam forming, frequency hopping, and power ramping, the probability that when the speed of a mobile station is low, the mobile station falls into a deep fading environment is lowered, thereby increasing the probability of detecting an RACH signature of the base station. Also, by using the transmission parameters (subbands, precoding matrixes, power, etc.) which are used for successful transmission of an RACH burst, for transmission of a successive user packet data, reliable transmission of the successive user packet data can be performed.

Abstract translation: 提供了一种由移动站对随机接入信道（RACH）突发传输分集增益执行的传输方法。 根据该方法，通过波束形成，跳频和功率斜坡的组合和使用切换分集，移动台的速度低时移动台落入深衰落环境的概率降低，从而增加 检测基站的RACH签名的概率。 此外，通过使用用于成功发送RACH突发的传输参数（子带，预编码矩阵，功率等），为了传送连续的用户分组数据，可以执行连续用户分组数据的可靠传输。

公开(公告)号：US20090080385A1

公开(公告)日：2009-03-26

申请号：US12093415

申请日：2006-11-10

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

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

IPC: H04J3/06 ,  H04W56/00

CPC classification number: H04L27/2656 ,  H04J11/0069 ,  H04L5/0016 ,  H04L5/005 ,  H04L27/2613 ,  H04L27/2675

Abstract: Provided are a cell search method, a forward link frame transmission method, an apparatus using the methods, and a forward link frame structure in an Orthogonal Frequency Division Multiplexing cellular system, wherein the time it takes to perform a cell search and the complexity of the cell search can be reduced. The cell search apparatus includes a sync acquirer which receives a signal according to a forward link frame comprising a plurality of sync channel symbols each having different intervals between the adjacent sync channel symbols and achieves synchronization of the sync channel symbols using a sync channel of the received signal, and a boundary detector which detects a frame boundary using an interval pattern between the sync channel symbols, based on the achieved synchronization.

Abstract translation: 提供了正交频分复用蜂窝系统中的小区搜索方法，前向链路帧发送方法，使用该方法的装置和前向链路帧结构，其中执行小区搜索所需的时间和 可以减少小区搜索。 小区搜索装置包括：同步获取器，其根据包括多个同步信道符号的前向链路帧接收信号，每个同步信道符号在相邻同步信道符号之间具有不同的间隔，并且使用所接收的同步信道符号的同步信道实现同步信道符号的同步 信号，以及边界检测器，其基于所实现的同步，使用同步信道符号之间的间隔模式来检测帧边界。

公开(公告)号：US20080232437A1

公开(公告)日：2008-09-25

申请号：US12064767

申请日：2006-08-24

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

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

IPC: H04B1/707

CPC classification number: H04B7/0678 ,  H04J13/10

Abstract: 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.

Abstract translation: 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：US20080151763A1

公开(公告)日：2008-06-26

申请号：US11951587

申请日：2007-12-06

Applicant: Sung-Jun LEE ,  Jae-Ho JUNG ,  Hyeong-Geun PARK ,  Seong-Min KIM ,  Kwang-Chun LEE

Inventor： Sung-Jun LEE ,  Jae-Ho JUNG ,  Hyeong-Geun PARK ,  Seong-Min KIM ,  Kwang-Chun LEE

IPC: H04L12/26

CPC classification number: H04L43/50 ,  H04L41/145 ,  H04W24/08

Abstract: Provided is a wired Multiple-Input Multiple-Output (MIMO) link tester. The wired link tester, includes: a simulating unit for constructing a wired link corresponding to a wireless link for a multiple-input multiple-output system and simulating wireless-link characteristics using each variable element located on the wired link; and a control means for prestoring a predetermined value of the variable element depending on the state change time and the number of the state changes and controlling the variable element according to the predetermined value of the variable element.

Abstract translation: 提供了一种有线多输入多输出（MIMO）链路测试仪。 有线链路测试器包括：模拟单元，用于构建对应于多输入多输出系统的无线链路的有线链路，并使用位于有线链路上的每个可变元件来模拟无线链路特性; 以及控制装置，用于根据状态改变时间和状态数量改变预定可变元件的预定值，并根据可变元件的预定值来控制可变元件。

公开(公告)号：US07043272B2

公开(公告)日：2006-05-09

申请号：US10025780

申请日：2001-12-26

Applicant: Hyeong Geun Park ,  Hyun Seo Oh ,  Mun Geon Kyeong

Inventor： Hyeong Geun Park ,  Hyun Seo Oh ,  Mun Geon Kyeong

IPC: H04M1/00

CPC classification number: H04B7/0408 ,  G01S3/30 ,  H04B7/0617

Abstract: Disclosed are an apparatus for forward beamforming using a terminal feedback and a method thereof. The base station estimates an angle of arrival (AOA) range of a user signal from reverse link received data and calculates a plurality of beamforming weights steering the estimated AOA range. Then, the base station transmits a user pilot signal by sequentially using the plurality of beamforming weights at different time areas through a control channel to estimate a forward channel conditions. A terminal calculates the user pilot signal power for all fingers at the respective time areas and feeds a time area number corresponding to the greatest power back to the base station. The base station transmits a data channel signal using a beamforming weight corresponding to the time area number fed back from the terminal.

公开(公告)号：US09143257B2

公开(公告)日：2015-09-22

申请号：US12634871

申请日：2009-12-10

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

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

IPC: H04K1/00 ,  H04J13/00 ,  H04L1/00 ,  H04L25/03 ,  H04L25/05 ,  H04L1/18 ,  H04W4/18 ,  H04W48/08

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

Abstract: 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.

公开(公告)号：US08693394B2

公开(公告)日：2014-04-08

申请号：US12542933

申请日：2009-08-18

Applicant: Eun Jeong Shin ,  Hyeong Geun Park ,  Il Gyu Kim

Inventor： Eun Jeong Shin ,  Hyeong Geun Park ,  Il Gyu Kim

IPC: H04J11/00

CPC classification number: H04J11/0093 ,  H04J11/0023 ,  H04J11/005 ,  H04J11/0069 ,  H04J11/0083 ,  H04W48/20

Abstract: A method of discovering a neighbor cell, the method including: determining whether a first Primary Synchronization Channel (PSCH) of a first cell in which a terminal is included is identical to a second PSCH of a second cell, and whether timings of the first cell and the second cell are synchronous; estimating third channel information of the second cell based on second channel information of the first cell from first channel information, when the first PSCH is identical to the second PSCH and the timings of the first cell and the second cell are synchronous, the second channel information being estimated using a first Secondary Synchronization Channel (SSCH) of the first cell, and the first channel information being estimated using the first PSCH and the second PSCH; and detecting a second SSCH of the second cell, and detecting a cell identifier (ID) of the second cell using the second SSCH.

Abstract translation: 一种发现相邻小区的方法，所述方法包括：确定其中包括终端的第一小区的第一主同步信道（PSCH）是否与第二小区的第二PSCH相同，以及第一小区的定时 第二个单元是同步的; 当第一PSCH与第二PSCH相同并且第一小区和第二小区的定时同步时，基于第一信道信息，基于第一小区的第二信道信息估计第二小区的第三信道信息，第二信道信息 使用第一小区的第一辅助同步信道（SSCH）估计，并且使用第一PSCH和第二PSCH来估计第一信道信息; 以及检测所述第二小区的第二SSCH，以及使用所述第二SSCH检测所述第二小区的小区标识符（ID）。

公开(公告)号：US08355464B2

公开(公告)日：2013-01-15

申请号：US12515356

申请日：2007-11-16

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

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

IPC: H04L27/00

CPC classification number: H04L5/0053 ,  H04L5/0007 ,  H04L25/0202

Abstract: A downlink frame generation device arrange a plurality of synchronization channel symbols and a plurality of broad-casting channel symbols in a common bandwidth of a system so that the symbols may neighbor each other on the time axis. The downlink frame generation device applies a precoding vector to the synchronization channel symbols and the broadcasting channel symbols to generate a plurality of downlink frames corresponding to a plurality of antennas. The precoding vector is variable by a sector for transmitting a plurality of downlink frames and a subframe in which a plurality of synchronization channel symbols are positioned. The precoding vector is independent of an index of a subcarrier.

Abstract translation: 下行链路帧产生装置在系统的公共带宽中布置多个同步信道符号和多个广播信道符号，使得符号可以在时间轴上彼此相邻。 下行链路帧生成装置对同步信道符号和广播信道符号应用预编码矢量，生成与多个天线对应的多个下行链路帧。 预编码向量由用于发送多个下行链路帧的扇区和多个同步信道符号所在的子帧可变。 预编码向量与子载波的索引无关。

公开(公告)号：US08325705B2

公开(公告)日：2012-12-04

申请号：US12487786

申请日：2009-06-19

Applicant: Kap Seok Chang ,  Il Gyu Kim ,  Hyeong Geun Park ,  Young Jo Ko ,  Hyo Seok Yi ,  Moon Sik Lee ,  Young Hoon Kim ,  Seung Chan Bang

Inventor： Kap Seok Chang ,  Il Gyu Kim ,  Hyeong Geun Park ,  Young Jo Ko ,  Hyo Seok Yi ,  Moon Sik Lee ,  Young Hoon Kim ,  Seung Chan Bang

IPC: H04J3/06

CPC classification number: H04W56/00 ,  H04J11/0069 ,  H04J11/0076 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2655 ,  H04L27/2656 ,  H04L27/2657 ,  H04L27/2662

Abstract: The present invention relates to a method for generating a downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence determined by a first synchronization signal; generating a second scrambling sequence determined by a first short sequence and a third scrambling sequence determined by a second short sequence; scrambling the first short sequence with the first scrambling sequence; scrambling the second short sequence with at least the second scrambling sequence; scrambling the second short sequence with the first scrambling sequence; scrambling the first short sequence with at least the third scrambling sequence; and mapping one second synchronization signal including the first short sequence scrambled with the first scrambling sequence and the second short sequence scrambled with at least the second scrambling sequence and another second synchronization signal including the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled with at least the third scrambling sequence in the frequency domain.

Abstract translation: 本发明涉及生成下行链路帧的方法，包括：产生指示小区组信息的第一短序列和第二短序列; 产生由第一同步信号确定的第一加扰序列; 产生由第二短序列确定的第一加扰序列和由第二短序列确定的第三加扰序列; 用第一加扰序列加扰第一短序列; 用至少第二加扰序列来加扰第二短序列; 用第一加扰序列加扰第二短序列; 用至少第三加扰序列对第一短序列进行加扰; 以及映射一个第二同步信号，该第一同步信号包括与第一加扰序列加密的第一短序列和至少第二加扰序列加扰的第二短序列，以及包括与第一加扰序列和第一加扰序列加扰的第二短序列的另一第二同步信号 至少在频域中的第三加扰序列加扰的序列。

公开(公告)号：US08320571B2

公开(公告)日：2012-11-27

申请号：US12488272

申请日：2009-06-19

Applicant: Kap Seok Chang ,  Il Gyu Kim ,  Hyeong Geun Park ,  Young Jo Ko ,  Hyo Seok Yi ,  Chan Bok Jeong ,  Young Hoon Kim ,  Seung Chan Bang

Inventor： Kap Seok Chang ,  Il Gyu Kim ,  Hyeong Geun Park ,  Young Jo Ko ,  Hyo Seok Yi ,  Chan Bok Jeong ,  Young Hoon Kim ,  Seung Chan Bang

IPC: H04K1/00

CPC classification number: H04W48/16 ,  H04B1/70735 ,  H04B7/2656 ,  H04J11/0069 ,  H04L7/043 ,  H04L27/2613 ,  H04L27/2655 ,  H04W56/00 ,  H04W72/042 ,  H04W72/0446 ,  H04W88/08

Abstract: The present invention relates to a method of generating a downlink frame. The method of generating the downlink frame includes: generating a first short sequence and a second short sequence indicating cell group information; generating a first scrambling sequence and a second scrambling sequence determined by the primary synchronization signal; generating a third scrambling sequence determined by the first short sequence and a fourth scrambling sequence determined by the second short sequence; scrambling the first short sequence with the first scrambling sequence and scrambling the second short sequence with the second scrambling sequence and the third scrambling sequence; scrambling the second short sequence with the first scrambling sequence and scrambling the first short sequence with the second scrambling sequence and the fourth scrambling sequence; and mapping the secondary synchronization signal that includes the first short sequence scrambled with the first scrambling sequence, the second short sequence scrambled with the second scrambling sequence and the third scrambling sequence, the second short sequence scrambled with the first scrambling sequence and the first short sequence scrambled by the second scrambling sequence and the fourth scrambling sequence to a frequency domain.

Abstract translation: 本发明涉及一种生成下行链路帧的方法。 产生下行链路帧的方法包括：产生指示小区组信息的第一短序列和第二短序列; 产生由所述主同步信号确定的第一加扰序列和第二加扰序列; 产生由第一短序列确定的第三加扰序列和由第二短序列确定的第四加扰序列; 用第一加扰序列对第一短序列进行加扰，并用第二加扰序列和第三加扰序列加扰第二短序列; 用第一加扰序列对第二短序列进行加扰，并用第二加扰序列和第四加扰序列对第一短序列进行加扰; 以及映射包括与第一加扰序列加扰的第一短序列的第二同步信号，用第二加扰序列和第三加扰序列加扰的第二短序列，用第一加扰序列和第一短序列加扰的第二短序列 通过第二加扰序列和第四加扰序列加扰到频域。