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1. 发明专利

DE602004011294T2 未知
公开(公告)号：DE602004011294T2
公开(公告)日：2009-01-22
申请号：DE602004011294
申请日：2004-07-08
申请人： SAMSUNG ELECTRONICS CO LTD , POSTECH FOUNDATION POHANG
发明人： LEE JONG-HYEUK , KIM YUNG-SOO , IM GI-HONG , WON HUI-CHUL , PARK CHEOL-JIN
IPC分类号： H04J11/00 , H04L25/02 , H04B7/06 , H04L1/06 , H04L27/26
摘要： In a mobile communication system, a transmitter includes a first transmission antenna and a second transmission antenna, and the first and second transmission antennas transmit signals through at least one odd carrier and at least one even carrier. The transmitter determines a first symbol and a second symbol to be used for initial channel estimation of a receiver, encodes the first symbol and the second symbol by a preset transmit diversity scheme for a preset time, and transmits the encoded first and second symbols to the receiver through odd carriers and even carriers of the first transmission antenna and the second transmission antenna. The receiver receives a signal for the preset period, estimates channel frequency responses of odd carriers of the first transmission antenna and channel frequency responses of even carriers of the second transmission antenna, and estimates channel frequency responses of even carriers of the first transmission antenna and channel frequency responses of odd carriers of the second transmission antenna by using the estimated channel frequency responses.

2. 发明专利

DE602004011294D1 未知
公开(公告)号：DE602004011294D1
公开(公告)日：2008-03-06
申请号：DE602004011294
申请日：2004-07-08
申请人： SAMSUNG ELECTRONICS CO LTD , POSTECH FOUNDATION POHANG
发明人： LEE JONG-HYEUK , KIM YUNG-SOO , IM GI-HONG , WON HUI-CHUL , PARK CHEOL-JIN
IPC分类号： H04J11/00 , H04L25/02 , H04B7/06 , H04L1/06 , H04L27/26
摘要： In a mobile communication system, a transmitter includes a first transmission antenna and a second transmission antenna, and the first and second transmission antennas transmit signals through at least one odd carrier and at least one even carrier. The transmitter determines a first symbol and a second symbol to be used for initial channel estimation of a receiver, encodes the first symbol and the second symbol by a preset transmit diversity scheme for a preset time, and transmits the encoded first and second symbols to the receiver through odd carriers and even carriers of the first transmission antenna and the second transmission antenna. The receiver receives a signal for the preset period, estimates channel frequency responses of odd carriers of the first transmission antenna and channel frequency responses of even carriers of the second transmission antenna, and estimates channel frequency responses of even carriers of the first transmission antenna and channel frequency responses of odd carriers of the second transmission antenna by using the estimated channel frequency responses.

3. 发明申请

WO2010114341A3 APPARATUS AND METHOD FOR MINIMIZING ERRORS BY A CELL EDGE USER IN A MULTI-CELL COMMUNICATION SYSTEM 审中-公开
标题翻译：用于在多小区通信系统中由小区边缘用户最小化错误的装置和方法
公开(公告)号：WO2010114341A3
公开(公告)日：2010-12-29
申请号：PCT/KR2010002051
申请日：2010-04-02
申请人： SAMSUNG ELECTRONICS CO LTD , IND ACADEMIC COOP , LEE JOO-HYUN , KIM SUNG-HWAN , LEE JONG-HYEUK , LEE CHUNG-YOUNG , KIM MYOUNG-SEOK , NOH HOON-DONG
发明人： LEE JOO-HYUN , KIM SUNG-HWAN , LEE JONG-HYEUK , LEE CHUNG-YOUNG , KIM MYOUNG-SEOK , NOH HOON-DONG
IPC分类号： H04B7/04 , H04B7/26
CPC分类号： H04B7/0639 , H04B7/024 , H04L25/0228 , H04L25/0246
摘要： The present invention relates to performance improvement in a cell edge, particularly to a method for selecting a precoder for a terminal in a multiple antenna system, wherein the method comprises: performing channel estimation for reference signals of a serving base station and another base station; calculating a minimum singular value by using the channel estimation result; and if a complete collaborative feedback structure is used, feeding back a table of the calculated, minimum singular value to the base stations.
摘要翻译：本发明涉及小区边缘中的性能改进，特别涉及用于选择多天线系统中的终端的预编码器的方法，其中该方法包括：对服务基站和另一基站的参考信号进行信道估计; 通过使用信道估计结果计算最小奇异值; 并且如果使用完整的协作反馈结构，则将计算的最小奇异值的表反馈给基站。

4. 发明专利

JP2005229607A Timing synchronization method for ofdm based communication system 有权
标题翻译：基于OFDM的通信系统的同步同步方法
公开(公告)号：JP2005229607A
公开(公告)日：2005-08-25
申请号：JP2005032186
申请日：2005-02-08
申请人： Samsung Electronics Co Ltd , Univ Yonse , 三星電子株式会社Samsung Electronics Co.,Ltd. , 延世大学校
发明人： LEE SANG-JIN , SEO JONG-SOO , KIM EUNG-SUN , LEE JONG-HYEUK
IPC分类号： H04J11/00 , H04K1/10 , H04L27/26
CPC分类号： H04L27/2662 , H04L27/2607 , H04L27/2678
摘要： PROBLEM TO BE SOLVED: To provide a synchronization method for an OFDM ( orthogonal frequency division multiplexing) based communication system with which reliability of frequency offset estimation can be improved by inserting a known fixed guard interval to each OFDM symbol.
SOLUTION: In the synchronization method in the OFDM based communication system, a transmitting side generates and transmits an OFDM symbol having a constant cyclic prefix, independently of time domain data symbols that are to be transmitted. A receiving side estimates a time synchronization error on the basis of the known cyclic prefix. Since the time synchronization error is estimated on the basis of the constant cyclic prefix, which is always known, a highly reliable correlation is achieved, thereby improving the accuracy of synchronization.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种基于OFDM（正交频分复用）的通信系统的同步方法，通过向每个OFDM符号插入已知的固定保护间隔，可以提高频偏估计的可靠性。解决方案：在基于OFDM的通信系统的同步方法中，发送侧独立于要发送的时域数据符号，生成并发送具有恒定循环前缀的OFDM符号。接收侧基于已知的循环前缀来估计时间同步误差。由于时间同步误差是基于始终是已知的常数循环前缀来估计的，所以实现了高度可靠的相关性，从而提高了同步的精度。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

DE60133229D1 未知
公开(公告)号：DE60133229D1
公开(公告)日：2008-04-24
申请号：DE60133229
申请日：2001-10-05
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： LEE HYUN-WOO , KWAK BYUNG-JAE , KIM SUNG-JIN , LEE JU-HO , LEE YOUNG-SUK , LEE JONG-HYEUK
IPC分类号： H04B7/06 , G01N1/40 , H04B1/44 , H04B1/54 , H04B1/56 , H04B7/005 , H04J3/00 , H04J13/00 , H04L5/02 , H04W52/14 , H04W52/22 , H04W52/42
摘要： Transmission frames each having time slots, and each of the time slots includes two data parts having the same length, a midamble intervening between the data parts, and a guard period for dividing the consecutive time slots. The transmission apparatus modulates the frames into a radio signal with a modulation signal and transmits the modulated radio signal using several antennas. A power amplifier amplifies the radio signal. A controller generates a switching control signal in a guard period of time slots of a frame associated with the radio signal amplified by the power amplifier. A switch switches the amplified radio signal from the power amplifier between two antennas in response to the switching control signal. An independent claim is included for a transmission method in a CDMA mobile communication system, and a power control apparatus.

6. 发明专利

SE524824C2 未知
公开(公告)号：SE524824C2
公开(公告)日：2004-10-12
申请号：SE0202471
申请日：2002-08-19
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： LEE YOUNG-SUK , KIM SUNG-JIN , LEE JONG-HYEUK , PARK SAN-HWAN , KIM HUN-KEE
IPC分类号： H04B7/08 , H04B7/02 , H04B7/04 , H04B7/06 , H04B7/26 , H04L1/00 , H04W4/00 , H04W16/28 , H04W72/08
摘要： A data transmitting/receiving apparatus and method using an antenna array in a mobile communication system. A Node B measures a transmission status of each transmission antenna, classifies transmission data according to priority, and transmits to a UE high-priority data through a transmission antenna at a relatively good transmission status and low-priority data through a transmission antenna at a relatively poor transmission status.

7. 发明专利

DE10237868A1 未知
公开(公告)号：DE10237868A1
公开(公告)日：2003-05-28
申请号：DE10237868
申请日：2002-08-19
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： LEE YOUNG-SUK , KIM SUNG-JIN , LEE JONG-HYEUK , PARK SANG-HWAN , KIM HUN-KEE
IPC分类号： H04B7/08 , H04B7/02 , H04B7/04 , H04B7/06 , H04B7/26 , H04L1/00 , H04W4/00 , H04W16/28 , H04W72/08 , H04B17/00 , H04L27/32
摘要： A data transmitting/receiving apparatus and method using an antenna array in a mobile communication system. A Node B measures a transmission status of each transmission antenna, classifies transmission data according to priority, and transmits to a UE high-priority data through a transmission antenna at a relatively good transmission status and low-priority data through a transmission antenna at a relatively poor transmission status.

8. 发明专利

DE60320920D1 未知
公开(公告)号：DE60320920D1
公开(公告)日：2008-06-26
申请号：DE60320920
申请日：2003-10-30
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： LEE JONG-HYEUK , KIM SUNG-JIN
IPC分类号： H04B1/69 , H04J13/16 , H04W16/12 , H04W16/28
摘要： A spatial correlation between a new mobile station requesting communication and each of existing mobile stations, is examined, based on the long-term information reflecting the spatial characteristics of beams transmitted to the mobile stations. One of the already used codes is selected, to be reused as a code for the new mobile station, depending on the results of correlation examination. An independent claim is also included for code reuse apparatus.

9. 发明专利

DE60215073T2 未知
公开(公告)号：DE60215073T2
公开(公告)日：2007-05-16
申请号：DE60215073
申请日：2002-05-16
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： SUNG-JIN KIM , LEE JU-HO , LEE JONG-HYEUK , LEE YONG-SUK , KIM KI-HO , LEE HYEON-WOO
IPC分类号： H04B7/26 , H01Q3/26 , H04B7/06
摘要： A mobile communication apparatus with an antenna array and a mobile communication method therefore are provided. A mobile communication apparatus includes a base station with an antenna array and a mobile station, wherein the mobile station which determines a channel downlink characteristic for each antenna using a signal transmitted from the base station, determines long-term information and short-term information based on the correlation of characteristics between channels for each antenna, using the channel downlink characteristic, converts the determined long-term information and short-term information to a feedback signal, and transmits the feedback signal to the base station, and the base station which receives the feedback signal, extracts a plurality of weights from the long-term information and short-term information restored from the received feedback signal, multiplies a multiplexed dedicate physical channel signal by the respective weights, adds respective pilot channel signals to the products, and transmits the results of the additions through the antenna array to the mobile station.

10. 发明专利

DE60206860D1 未知
公开(公告)号：DE60206860D1
公开(公告)日：2005-12-01
申请号：DE60206860
申请日：2002-08-21
申请人： SAMSUNG ELECTRONICS CO LTD
发明人： KIM SUNG-JIN , LEE HYEON-WOO , KIM KI-HO , LEE YONG-SUK , LEE JONG-HYEUK , KIM YUNG-SOO
IPC分类号： H04B1/707 , H04B7/02 , H04B7/06 , H04B7/08 , H04B7/10 , H04B7/26 , H04J13/00 , H04J99/00 , H04W16/28 , H04W88/02
摘要： Provided are a mobile communication apparatus having an antenna array and a mobile communication method performed in the mobile communication apparatus. The mobile communication apparatus includes a base station and mobile station, each having an antenna array. The mobile station measures the downlink characteristics of a channel for each transmitter/receiver antenna pair from a signal received from a base station calculates the eigenvalues and eigenvectors of the channel propagation matrix, uses the eigenvectors as basis, determines long-term information in which the correlation property of the channel for each antenna has been reflected from the measured downlink characteristics, transforms the long-term information into a feedback signal, and transmits the feedback signal to the base station. The base station receives the feedback signal, restores the long-term information from the received feedback signal, performs basis mapping and basis transformation on a dedicated physical channel signal using the restored long-term information, adds the basis-mapped and basis-transformed signal to each of pilot channel signals, and transmits the addition results to the mobile station. Accordingly, information in which the downlink characteristics of a space channel has been reflected is fed back from the mobile station to the base station, thus minimizing the effects of fading, interference, and noise and maximizing throughput.

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