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31.发明专利
公开(公告)号：GB2370725B
公开(公告)日：2004-08-11
申请号：GB0111897
申请日：2001-05-16
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM IL-GYU , JEONG JAE-WOOK , BANG SEUNG-CHAN
IPC: H04B1/7113 , H04Q7/38
Abstract: There is disclosed an optimal search method of DS-CDMA signals consisted of time-multiplexed pilot symbols and control symbols capable of maximizing the performance of a receiver when the signal is searched or SNR is measured and apparatus thereof. Further, the present invention proposes a method of maximizing the performance of a searcher using basically both energy of the pilot symbol and the control symbol wherein coherent integral lengths for two regions are differentiated when the receiver searches the signals, and different weights are given to the two regions when a coherent correlation value is finally non-coherently added, and a method of effectively estimating SNR.
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公开(公告)号：HK1033522A1
公开(公告)日：2001-08-31
申请号：HK01104144
申请日：2001-06-15
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： BANG SEUNG-CHAN , KIM TAE-JOONG , KIM JAE-HEUNG , KIM JUNG-IM , CHAE JONG-SUK , LEE HYUCK-JAE , SHIM JAE-RYONG , LEE NARM-HEE
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33.发明公开METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING CONTROL INFORMATION AND PACKET DATA IN DOWNLINK 有权方法和设备，用于发送和接收控制信息和数据包的向下ROUTE
公开(公告)号：EP2080291A4
公开(公告)日：2014-07-02
申请号：EP07833766
申请日：2007-10-31
Applicant: KOREA ELECTRONICS TELECOMM , SAMSUNG ELECTRONICS CO LTD
Inventor： KIM TAE-JOONG , PARK GI-YOON , PARK OK-SUN , LEE JAE-KYUNG , PARK HYEONG-JUN , BANG SEUNG-CHAN
IPC: H04B7/26
CPC classification number: H04B7/2637 , H04B7/12
Abstract: Provided are a method and apparatus for transmitting control information and packet data. The method includes generating control channels which transmit the control information; generating control indication channel which indicates whether the control channels are transmitted or not; generating data channels in order to transmit the packet data based on the control information; multiplexing the control channels, the control indication channels, and the data channels; and transmitting the control channels, the control indication channels, and the data channels. According to the present invention, when control information and packet data are transmitted in downlink, by transmitting additional information indicating whether control channels are transmitted or not, resources not actually allocated to control channels can be allocated to data channel and the mobile station can receive data channel using the control indication information.
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34.发明公开CELL SEARCH METHOD, FORWARD LINK FRAME TRANSMISSION METHOD, APPARATUS USING THE SAME AND FORWARD LINK FRAME STRUCTURE 审中-公开小区搜索进程的推进LINES FRAME TRANSFER步骤中，该使用的设备和远期线路框架结构
公开(公告)号：EP1946461A4
公开(公告)日：2013-08-14
申请号：EP06812526
申请日：2006-11-10
Applicant: KOREA ELECTRONICS TELECOMM , SK TELECOM CO LTD , KT CORP
Inventor： KIM IL-GYU , PARK HYEONG-GEUN , KIM NAM-IL , CHANG KAP-SEOK , KIM YOUNG-HOON , BANG SEUNG-CHAN
CPC classification number: H04J11/0069 , H04J13/0066 , H04J13/0074 , H04L5/0016 , H04L5/0048 , H04L25/0226 , H04L27/2613 , H04L27/2655 , H04L27/2656 , H04L27/2657 , H04L27/2662
Abstract: Provided are a cell search method, a forward link frame transmission method, an apparatus using the methods, and a forward link frame structure. The cell search apparatus includes a sync acquirer acquiring synchronization of sync channel symbols using a sync channel of a forward link, and a group detector detecting at least one hopping codeword element belonging to a hopping codeword of a target cell from a forward link signal containing sync channel symbols sequence-hopped using a hopping codeword corresponding to a code group to which a scrambling code of each cell belongs based on the acquired synchronization, and detecting a code group of the target cell based on the detected hopping codeword element, wherein the hopping codewords are orthogonal to a cyclic shift operation. Accordingly, a cell search time and the complexity of the cell search can be reduced.
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35.发明公开RANDOM ACCESS PREAMBLE STRUCTURE IN EXTENDED CELLS ENVIRONMENT 有权EIREKTZUGANGS-PRÄAMBELSTRUKTURIN EINER ERWEITERTEN ZELLENUMGEBUNG
公开(公告)号：EP2115989A4
公开(公告)日：2012-08-01
申请号：EP08704597
申请日：2008-01-04
Applicant: KOREA ELECTRONICS TELECOMM , SAMSUNG ELECTRONICS CO LTD
Inventor： LEE MOON-SIK , JWA HYE-KYUNG , YI HYOSEOK , KIM YOUNG-HOON , BANG SEUNG-CHAN
IPC: H04L27/26
CPC classification number: H04L27/2607 , H04L69/323 , H04W74/006
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Patent Agency Ranking36.发明公开
公开(公告)号：EP2186293A4
公开(公告)日：2012-05-23
申请号：EP08793159
申请日：2008-08-08
Applicant: KOREA ELECTRONICS TELECOMM , SAMSUNG ELECTRONICS CO LTD
Inventor： KO YOUNG-JO , PARK HYEONG-GEUN , KIM IL-GYU , CHANG KAPSEOK , YI HYOSEOK , KIM YOUNG-HOON , BANG SEUNG-CHAN
CPC classification number: H04J11/003 , H04L1/1861 , H04L5/0007 , H04L5/0053 , H04L27/2607 , H04W72/00
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公开(公告)号：EP2097994A4
公开(公告)日：2010-12-29
申请号：EP07746762
申请日：2007-05-30
Applicant: KOREA ELECTRONICS TELECOMM , SK TELECOM CO LTD , KT CORP
Inventor： CHANG KAP-SEOK , KIM IL-GYU , KIM NAM-IL , PARK HYEONG-GEUN , KIM YOUNG-HOON , BANG SEUNG-CHAN
CPC classification number: H04J11/0079 , H04L27/261 , H04L27/2613 , H04L27/2656 , H04L27/2685
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38.发明公开METHOD OF TRANSMITTING ACK/NACK BIT SUPPORTING HARQ IN MOBILE COMMUNICATION SYSTEM SUPPORTING MULTI USER MIMO 有权METHOD FOR ACK / NACK比特的支持HARQ的移动传输，多用户MIMO支持通信系统
公开(公告)号：EP2156598A4
公开(公告)日：2014-07-02
申请号：EP08766322
申请日：2008-06-13
Applicant: KOREA ELECTRONICS TELECOMM , SAMSUNG ELECTRONICS CO LTD
Inventor： KIM IL-GYU , PARK HYEONG-GEUN , KO YOUNG-JO , CHANG KAPSEOK , YI HYOSEOK , KIM YOUNG-HOON , BANG SEUNG-CHAN
CPC classification number: H04W72/044 , H04B7/0417 , H04B7/0452 , H04B7/061 , H04B7/0623 , H04L1/1692 , H04L1/1812 , H04L1/1861 , H04L5/0016 , H04L5/0023 , H04L5/0055 , H04L27/18
Abstract: Provided is a method of efficiently transmitting an acknowledgement/negative acknowledgement (ACK/NACK) bit supporting hybrid automatic repeat request (HARQ) in a wireless communication system supporting multi-user multi-input and multi-output (MIMO). The method transmits the same downlink code and in-phase/quadrature (I/Q) multiplexed ACK/NACK bit to two mobile stations using the same uplink resource block. Accordingly, the method can efficiently transmit the ACK/NACK bit for multi-user MIMO and efficiently use downlink radio resources.
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39.发明公开CELL SEARCH METHOD, FORWARD LINK FRAME TRANSMISSION METHOD, APPARATUS USING THE SAME AND FORWARD LINK FRAME STRUCTURE 有权小区搜索方法，方法的前向链路帧，设备以及正确连接前车架结构传输
公开(公告)号：EP2044720A4
公开(公告)日：2010-09-01
申请号：EP07793239
申请日：2007-07-25
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM IL-GYU , PARK HYEONG-GEUN , KO YOUNG-JO , CHANG KAPSEOK , YI HYOSEOK , KIM YOUNG-HOON , BANG SEUNG-CHAN
IPC: H04L7/10
CPC classification number: H04W56/001 , H04J11/0069 , H04J11/0093 , H04L5/0037 , H04L5/005 , H04L5/0053 , H04L27/2613 , H04L27/2655 , H04L27/2675 , H04W36/0061 , H04W36/08 , H04W56/00
Abstract: 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.
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40.发明公开METHOD AND APPARATUS FOR DISCONTINUOUS TRANSMISSION/RECEPTION OPERATION FOR REDUCING POWER CONSUMPTION IN CELLULAR SYSTEM 有权方法和设备不连续传输/接收以降低在蜂窝系统中的电源使用
公开(公告)号：EP1964289A4
公开(公告)日：2010-06-30
申请号：EP06835368
申请日：2006-12-22
Applicant: KOREA ELECTRONICS TELECOMM , SK TELECOM CO LTD , KT FREETEL CO LTD
Inventor： KIM JAE-HEUNG , RYU BYUNG-HAN , BANG SEUNG-CHAN
CPC classification number: H04W52/0216 , H04W76/048 , Y02D70/00 , Y02D70/1262 , Y02D70/23 , Y02D70/24 , Y02D70/25
Abstract: Provided is a method and apparatus for discontinuously transmitting/receiving packets for low-power consumption of a terminal in a cellular system for packet transmission. The present research provides a method and apparatus that can perform a low-power consuming operation when a terminal is in active state in a cellular system. The method for discontinuously transmitting/receiving packet data to reduce power consumption of a terminal in a cellular system, including the steps of: a) establishing discontinuous reception/transmission (DRX/DTX) parameters including discontinuous DRX/DTX cycle information for terminals operating in a transmission suspension mode, which is a sub-state of an active state; and b) performing DRX/DTX based on the DRX/DTX parameters in the terminals operating in the transmission suspension mode.
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