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公开(公告)号：AT528867T
公开(公告)日：2011-10-15
申请号：AT08778752
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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42.发明专利
公开(公告)号：ES2356030T3
公开(公告)日：2011-04-04
申请号：ES08778879
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: Un procedimiento de generación de una trama de enlace descendente (110) que incluye una señal de sincronización primaria y una señal de sincronización secundaria en un sistema de comunicación inalámbrica que comprende: generar una primera secuencia corta y una segunda secuencia corta que indican información del grupo de celdas; generar una primera secuencia de cifrado y una segunda secuencia de cifrado determinadas por la señal de sincronización primaria; generar una tercera secuencia de cifrado determinada por un grupo de secuencias cortas el sistema de comunicación inalámbrica usa una pluralidad de secuencias cortas y la pluralidad de secuencias cortas está agrupada en una pluralidad de grupos de secuencias cortas al que está asignado la primera secuencia corta; cifrar la primera secuencia corta con la primera secuencia de cifrado y cifrar la segunda secuencia corta con la segunda secuencia de cifrado y la tercera secuencia de cifrado; y modular la señal de sincronización secundaria que incluye la primera secuencia corta cifrada y la 15 segunda secuencia corta cifrada a un dominio de la frecuencia.
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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：ES2428348T3
公开(公告)日：2013-11-07
申请号：ES11161140
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: Método para buscar una célula mediante una estación móvil, comprendiendo el método: recibir una trama de enlace descendente que incluye una primera señal de sincronización y dos segundas señales de sincronización; e identificar una célula usando la primera señal de sincronización y al menos una de las dos segundas señales de sincronización, en el que una de las dos segundas señales de sincronización incluye una primera secuencia corta (w0) aleatorizada con una primera secuencia de aleatorización (PJ,1) y una segunda secuencia corta (w1) aleatorizada con una segunda secuencia de aleatorización (Sw0), la otra de las dos segundas señales de sincronización incluye la segunda secuencia corta (w1) aleatorizada con la primera secuencia de aleatorización (PJ,1) y la primera secuencia corta (w0) aleatorizada con una tercera secuencia de aleatorización (Sw1), la primera secuencia de aleatorización (PJ,1) se determina por la primera señal de sincronización, la segunda secuencia de aleatorización (Sw0) se determina por la primera secuencia corta (w0), la tercera secuencia de aleatorización (Sw1) se determina por la segunda secuencia corta (w1), y las secuencias cortas primera y segunda indican información de grupo de células.
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Patent Agency Ranking46.发明专利
公开(公告)号：DE102011003330A1
公开(公告)日：2012-01-05
申请号：DE102011003330
申请日：2011-01-28
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM DAEHO , PARK GI YOON , KO YOUNG JO , PARK OK-SUN
Abstract: Es werden ein Feststationsempfänger für ein Multi-Input-Multi-Output-Kommunikationssystem (MIMO-Kommunikationssystem) und ein Aufwärtsstreckenadaptationsverfahren dafür geschaffen. In dem Aufwärtsstreckenadaptationsverfahren wird ein Sondierungsreferenzsignal (SRS) von einem Endgerät, das mehrere Sendeantennen enthält, empfangen. Aus dem Sondierungsreferenzsignal werden eine komplexe Kanalmatrix (H), die einer Kanalantwort entspricht, und eine Rauschvarianz (&sgr;2), die einer Rauschleistung entspricht, berechnet. Mit Bezug auf die komplexe Kanalmatrix (H) und die Rauschvarianz (&sgr;2) wird an jedem Übertragungssymbol ein Signal/Störungs- und Signal/Rausch-Verhältnis (SINR) berechnet. Eine Vorcodierungsmatrix des Endgeräts wird mit Bezug auf das Signal/Störungs- und Signal/Rausch-Verhältnis (SINR) gewählt.
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公开(公告)号：DE602008003767D1
公开(公告)日：2011-01-13
申请号：DE602008003767
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：AT490617T
公开(公告)日：2010-12-15
申请号：AT08778878
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：AU2008279972A1
公开(公告)日：2009-01-29
申请号：AU2008279972
申请日：2008-07-18
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： BANG SEUNG CHAN , KIM IL GYU , PARK HYEONG GEUN , CHANG KAP SEOK , YI HYO SEOK , KO YOUNG JO , JEONG CHAN BOK , KIM YOUNG HOON
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：AU2008273133A1
公开(公告)日：2009-01-15
申请号：AU2008273133
申请日：2008-07-11
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KO YOUNG JO , PARK HYEONG GEUN , BANG SEUNG CHAN , KIM IL GYU , LEE MOON SIK , YI HYO SEOK , KIM YOUNG HOON , CHANG KAP SEOK
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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