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公开(公告)号：DE602008003768D1
公开(公告)日：2011-01-13
申请号：DE602008003768
申请日：2008-07-18
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： CHANG KAP SEOK , KIM IL GYU , PARK HYEONG GEUN , KO YOUNG JO , YI HYO SEOK , JEONG CHAN BOK , KIM YOUNG HOON , BANG SEUNG CHAN
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公开(公告)号：AU2008273132A1
公开(公告)日：2009-01-15
申请号：AU2008273132
申请日：2008-07-11
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： YI HYO SEOK , PARK HYEONG GEUN , KIM YOUNG HOON , CHANG KAP SEOK , BANG SEUNG CHAN , LEE MOON SIK , KO YOUNG JO , KIM IL GYU
IPC: H04B7/26
Abstract: The present invention relates to a method of searching for a cell by a mobile station in a wireless communication system, wherein the wireless communication system uses a plurality of short sequences grouped into a plurality of short sequence groups, the method comprising: receiving a downlink frame including a primary synchronization signal and a secondary synchronization signal, wherein the secondary synchronization signal contains cell identity group information and the primary synchronization signal contains cell identity information within a cell identity group; and searching for a cell using the cell identity group information in the secondary synchronization signal and the cell identity information in the primary synchronization signal, wherein the secondary synchronization signal comprises a first short sequence and a second short sequence, the first short sequence is scrambled with a first scrambling sequence, and the second short sequence is scrambled with a second scrambling sequence, wherein the first scrambling sequence is determined based on the cell identity information contained in the primary synchronization signal, and the second scrambling sequence is determined based on a short sequence group to which the first short sequence is assigned, the short sequence group being determined based on a remainder of dividing an index of the first short sequence by 8.
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公开(公告)号：AT539513T
公开(公告)日：2012-01-15
申请号：AT10160271
申请日：2008-07-18
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： CHANG KAP SEOK , KIM IL GYU , PARK HYEONG GEUN , KO YOUNG JO , YI HYO SEOK , JEONG CHAN BOK , KIM YOUNG HOON , BANG SEUNG CHAN
Abstract: The present invention proposes a method of generating a downlink frame including a primary synchronization signal and secondary synchronization signals with which interference between sectors can be reduced so as to improve the performance for searching cells. The method comprises the steps of generating a first short sequence and a second short sequence, generating a first scrambling sequence and a second scrambling sequence by the primary synchronization signal, generating a third scrambling sequence determined by a short sequence group to which the first short sequence is assigned and a fourth scrambling sequence determined by a short sequence group to which the second short sequence is assigned, 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 including the scambled short sequences and the fourth to a frequency domain.
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公开(公告)号：AT524888T
公开(公告)日：2011-09-15
申请号：AT08778753
申请日：2008-07-11
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： CHANG KAP SEOK , KIM IL GYU , PARK HYEONG GEUN , KO YOUNG JO , YI HYO SEOK , LEE MOON SIK , KIM YOUNG HOON , BANG SEUNG CHAN
Abstract: The present invention relates to a method of searching for a cell by a mobile station in a wireless communication system, wherein the wireless communication system uses a plurality of short sequences grouped into a plurality of short sequence groups, the method comprising: receiving a downlink frame including a primary synchronization signal and a secondary synchronization signal, wherein the secondary synchronization signal contains cell identity group information and the primary synchronization signal contains cell identity information within a cell identity group; and searching for a cell using the cell identity group information in the secondary synchronization signal and the cell identity information in the primary synchronization signal, wherein the secondary synchronization signal comprises a first short sequence and a second short sequence, the first short sequence is scrambled with a first scrambling sequence, and the second short sequence is scrambled with a second scrambling sequence, wherein the first scrambling sequence is determined based on the cell identity information contained in the primary synchronization signal, and the second scrambling sequence is determined based on a short sequence group to which the first short sequence is assigned, the short sequence group being determined based on a remainder of dividing an index of the first short sequence by 8.
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公开(公告)号：DE602008003424D1
公开(公告)日：2010-12-23
申请号：DE602008003424
申请日：2008-07-18
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： CHANG KAP SEOK , KIM IL GYU , PARK HYEONG GEUN , KO YOUNG JO , YI HYO SEOK , JEONG CHAN BOK , KIM YOUNG HOON , BANG SEUNG CHAN
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Patent Agency Ranking
公开(公告)号：AT488067T
公开(公告)日：2010-11-15
申请号：AT08778879
申请日：2008-07-18
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： CHANG KAP SEOK , KIM IL GYU , PARK HYEONG GEUN , KO YOUNG JO , YI HYO SEOK , JEONG CHAN BOK , KIM YOUNG HOON , BANG SEUNG CHAN
Abstract: The present invention proposes a method of generating a downlink frame including a primary synchronization signal and secondary synchronization signals with which interference between sectors can be reduced so as to improve the performance for searching cells. The method comprises the steps of generating a first short sequence and a second short sequence, generating a first scrambling sequence and a second scrambling sequence by the primary synchronization signal, generating a third scrambling sequence determined by a short sequence group to which the first short sequence is assigned and a fourth scrambling sequence determined by a short sequence group to which the second short sequence is assigned, 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 including the scambled short sequences and the fourth to a frequency domain.
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37.发明公开
公开(公告)号：KR20070102965A
公开(公告)日：2007-10-22
申请号：KR20070037568
申请日：2007-04-17
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KO YOUNG JO , KIM IL GYU , PARK HYEONG GEUN , CHANG KAP SEOK , YI HYO SEOK , KIM YOUNG HOON , BANG SEUNG CHAN
CPC classification number: H04L27/2601 , H04L5/0007 , H04L5/0032
Abstract: A method for arranging distributed sub-channels in a multicarrier transmission system is provided to improve transmission diversity efficiency by using two sub-carriers or symbols as a single basic unit. Two neighboring carriers, which are adjacent to each other on a frequency axis, are grouped into a single basic unit, and the basic units are distributed on a channel in a multicarrier transmission system. The channel is arranged, such that the basic units are adjacent each other on the frequency axis, while the basic units are apart from each other by a distance greater than one symbol interval on a time axis. Alternatively, two symbol intervals, which are adjacent to each other on the time axis, are grouped to form the single basic unit.
Abstract translation: 提供一种用于在多载波传输系统中布置分布式子信道的方法，以通过使用两个子载波或符号作为单个基本单元来提高传输分集效率。 在频率轴上彼此相邻的两个相邻载波被分组为单个基本单元，并且基本单元分布在多载波传输系统中的信道上。 通道布置成使得基本单元在频率轴上彼此相邻，而基本单元在时间轴上彼此分开大于一个符号间隔的距离。 或者，在时间轴上彼此相邻的两个符号间隔被分组以形成单个基本单元。
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公开(公告)号：EP2127189A4
公开(公告)日：2010-03-17
申请号：EP08778878
申请日：2008-07-18
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： CHANG KAP SEOK , KIM IL GYU , PARK HYEONG GEUN , KO YOUNG JO , YI HYO SEOK , JEONG CHAN BOK , KIM YOUNG HOON , BANG SEUNG CHAN
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 proposes a method of generating a downlink frame including a primary synchronization signal and secondary synchronization signals with which interference between sectors can be reduced so as to improve the performance for searching cells. The method comprises the steps of generating a first short sequence and a second short sequence, generating a first scrambling sequence and a second scrambling sequence by the primary synchronization signal, generating a third scrambling sequence determined by a short sequence group to which the first short sequence is assigned and a fourth scrambling sequence determined by a short sequence group to which the second short sequence is assigned, 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 including the scambled short sequences and the fourth to a frequency domain.
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公开(公告)号：EP2127188A4
公开(公告)日：2010-03-17
申请号：EP08778876
申请日：2008-07-18
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： CHANG KAP SEOK , KIM IL GYU , PARK HYEONG GEUN , KO YOUNG JO , YI HYO SEOK , JEONG CHAN BOK , KIM YOUNG HOON , BANG SEUNG CHAN
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 proposes a method of generating a downlink frame including a primary synchronization signal and secondary synchronization signals with which interference between sectors can be reduced so as to improve the performance for searching cells. The method comprises the steps of generating a first short sequence and a second short sequence, generating a first scrambling sequence and a second scrambling sequence by the primary synchronization signal, generating a third scrambling sequence determined by a short sequence group to which the first short sequence is assigned and a fourth scrambling sequence determined by a short sequence group to which the second short sequence is assigned, 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 including the scambled short sequences and the fourth to a frequency domain.
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公开(公告)号：KR20120070059A
公开(公告)日：2012-06-29
申请号：KR20100131458
申请日：2010-12-21
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： JO GWEON DO , KIM YOUNG HOON , KIM JOON HYUNG , OH JUNG HOON , YU CHANG WAHN , JUNG JAE HO
CPC classification number: H04B1/62 , H03F1/3241 , H03F1/3258 , H03F2201/3212
Abstract: PURPOSE: A pre-distortion method based on polynomial expressions is provided to overcome discontinuity appeared at the boundary of regions by extracting the coefficients of the polynomial expressions. CONSTITUTION: Inputting signals which are the targets of pre-distortion are divided into polynomial expression regions(S210). A plurality of coefficient extracting regions are obtained(S220). The coefficient extracting regions correspond to the polynomial expression regions and include overlapped regions and the corresponding polynomial expression regions. Polynomial expression coefficients, which model the non-linear characteristic of the outputting signals, are extracted(S231). The coefficients of the extracted coefficients corresponding to the polynomial regions pre-distort the inputting signals by each polynomial region(S232).
Abstract translation: 目的：提出一种基于多项式表达式的预失真方法，通过提取多项式表达式的系数来克服出现在区域边界处的不连续性。 构成：作为预失真的目标的输入信号被划分为多项式表达区域（S210）。 获得多个系数提取区域（S220）。 系数提取区域对应于多项式表达区域，并且包括重叠区域和对应的多项式表达区域。 提取了对输出信号的非线性特性进行建模的多项式表达式（S231）。 对应于多项式区域的提取系数的系数通过各个多项式区域预失真输入信号（S232）。
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