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公开(公告)号：JP2001211144A
公开(公告)日：2001-08-03
申请号：JP2000367738
申请日：2000-12-01
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM TAE-JOONG , KIM JUNG-IM , KIM JAE-HEUNG , BANG SEUNG-CHAN
Abstract: PROBLEM TO BE SOLVED: To provide a device and a method for repetitive transmission and reception for physical layer channel coding which transmit a channel-coded signal at a position where maximum time diversity can be secured when a signal after non-memory error correction channel coding is repeatedly transmitted. SOLUTION: This repetitive transmission and reception device for non- memory error correction channel coding performs non-memory error correction channel coding for information to be sent, repeats a channel-coded signal, positions the repeated signal at a position where maximum time diversity can be secured, and then sends the positioned signal. This invention is usable for the repetitive transmission and reception of a signal after non-memory error correction channel coding.
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2.发明申请METHOD AND APPARATUS FOR SUPPORTING DISCONTINUOUS OPERATION OF BASE STATION IN WIRELESS COMMUNICATION SYSTEM, AND SYSTEM FOR CONTROLLING SAME 审中-公开用于支持无线通信系统中的基站的不连续操作的方法和设备以及用于控制该系统的系统
公开(公告)号：WO2010101391A3
公开(公告)日：2010-11-25
申请号：PCT/KR2010001297
申请日：2010-03-02
Applicant: KOREA ELECTRONICS TELECOMM , KIM TAE-JOONG , LEE KWANG-CHUN , KIM JAE-HEUNG , CHUNG HYUN-KYU
Inventor： KIM TAE-JOONG , LEE KWANG-CHUN , KIM JAE-HEUNG , CHUNG HYUN-KYU
Abstract: The present invention relates to a method and to an apparatus for configuring a communication system that supports the discontinuous operation of a base station. A method for controlling the operation of a base station in a wireless communication system according to one embodiment of the present invention comprises the steps of: checking whether or not a permitted mobile equipment exists in the coverage area of the base station and in all the coverage areas of neighboring base stations of said base station; and controlling the base station to operate in a first discontinuous mode by a predetermined cycle if said permitted mobile equipment does not exist in the coverage area of the base station and in all of the coverage areas of the neighboring base stations.
Abstract translation: 本发明涉及一种用于配置支持基站的不连续操作的通信系统的方法和设备。 根据本发明的一个实施例的用于控制无线通信系统中的基站的操作的方法包括以下步骤：检查在基站的覆盖区域中以及在所有覆盖范围内是否存在允许的移动设备 所述基站的相邻基站的区域; 以及如果所述许可的移动设备不存在于所述基站的所述覆盖区域中并且存在于所述相邻基站的所有覆盖区域中，则控制所述基站以第一非连续模式以预定周期操作。
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公开(公告)号：WO2008069392A2
公开(公告)日：2008-06-12
申请号：PCT/KR2007003479
申请日：2007-07-18
Applicant: KOREA ELECTRONICS TELECOMM , PARK GI-YOON , CHOI JIN-KYU , KIM TAE-JOONG , PARK HYEONG-JUN
Inventor： PARK GI-YOON , CHOI JIN-KYU , KIM TAE-JOONG , PARK HYEONG-JUN
CPC classification number: H04L25/0228 , H04L1/20 , H04L27/2647
Abstract: The present invention relates to a method for estimating a noise variance (i.e., necessary information to estimate transmitted symbols from received signals) in a receiver. When a first symbol vector on a frequency domain is received, a windowing controller sets all symbols except pilot symbols of the first symbol vector to zero to make a second symbol vector. An inverse discrete Fourier transformer transforms the second symbol vector on the frequency domain into a sample vector on the time domain, a noise sample extractor extracts noise samples of a block in which much reduced signals appear from the sample vector on the time domain, and a variance calculator calculates a variance of the extracted noise samples.
Abstract translation: 本发明涉及一种用于在接收机中估计噪声方差（即，从接收信号估计发射符号的必要信息）的方法。 当接收到频域上的第一符号向量时，窗口控制器将除第一符号向量的导频符号之外的所有符号设置为零以形成第二符号向量。 逆离散傅立叶变换器将频域上的第二符号向量变换成时域上的采样向量，噪声样本提取器从时域上的样本向量中提取出大量减少信号出现的块的噪声样本， 方差计算器计算提取的噪声样本的方差。
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公开(公告)号：GB2352944B
公开(公告)日：2004-02-11
申请号：GB0013114
申请日：2000-05-31
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： LEE HYUCK-JAE , KIM JAE-HEUNG , SHIM JAE RYONG , CHAE JONG-SUK , KIM JUNG-IM , LEE NARM-HEE , BANG SEUNG-CHAN , KIM TAE-JOONG
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公开(公告)号：GB2346779B
公开(公告)日：2004-01-07
申请号：GB9928610
申请日：1999-12-06
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM TAE-JOONG , BANG SEUNG-CHAN , SHIM JAE-RYONG , HAN KI-CHUL
Abstract: The invention relates to packet and random access in which multiple terminals (eg mobile phones) transmit data via a common code division multiple access (CDMA) Channel Terminals select one of available preamble signatures and one of available access slots and transmit a preamble (Fig.5). A base station tries to acquire the preamble and then broadcasts to all terminals whether the preambles are acquired or not (Fig.6). The terminals then transmit a data or retransmit a preamble according to the result of the preamble acquirement (Fig.5). The apparatus and method have improved network efficiency by reducing unnecessary data transmission and interference signal. An improved characteristic of time delay by ramping to adequate power level more quickly by re-transmitting preamble-by-preamble.
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Patent Agency Ranking
公开(公告)号：GB2352944A
公开(公告)日：2001-02-07
申请号：GB0013114
申请日：2000-05-31
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： LEE HYUCK-JAE , KIM JAE-HEUNG , SHIM JAE RYONG , CHAE JONG-SUK , KIM JUNG-IM , LEE NARM-HEE , BANG SEUNG-CHAN , KIM TAE-JOONG
Abstract: The present invention relates to an apparatus and method for modulating data by employing orthogonal variable spreading factor (OVSF) codes in a mobile communication system. A code generating means generates at least one spreading code to be allocated to a channel and is selected such that two consecutive pairs of in-phase (I) and quadrature (Q) data correspond to two points located on the same point in the phase domain (see figure) or are symmetrical with respect to the zero point (see fig. 9) . Data for transmission is then spread using the generated code and phase rotated by a Walsh rotator such that the phase difference between consecutive points is ninety degrees (90{). The ninety degree phase difference leads to a reduction in the peak to average power ratio (PAPR) of a mobile station. Preferably the orthogonal complex quadrature phase shift keying (OCQPSK) modulation scheme is adopted.
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公开(公告)号：DE10027216B4
公开(公告)日：2008-10-16
申请号：DE10027216
申请日：2000-05-31
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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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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公开(公告)号：DE10059873B4
公开(公告)日：2006-05-18
申请号：DE10059873
申请日：2000-12-01
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM TAE-JOONG , KIM JUNG-IM , KIM JAE-HEUNG , BANG SEUNG-CHAN
Abstract: PURPOSE: A repetitive transceiving device/method of non-memory error correction channel coding are provided to maximumly obtain time diversity of a demodulated symbol, when repetitively transmitting a coded signal through the non-memory error correction channel coding. CONSTITUTION: In a transmitting unit(100), an information generator(110) generates data to be transmitted. A coding unit(120) performs channel coding for the data outputted from the information generator(110) and repeats the channel coded data, to output a symbol to be transmitted. A symbol transmitter(130) receives the symbol to be transmitted, and multiplexes and modulates the symbol with another symbols, for outputting to a receiving unit(200). The receiving unit(200) receives a signal transmitted from the transmitting unit(100), for demodulation, demultiplexing, repetitive restoring, and channel coding, to obtain information.
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公开(公告)号：DE10059873A1
公开(公告)日：2001-06-28
申请号：DE10059873
申请日：2000-12-01
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM TAE-JOONG , KIM JUNG-IM , KIM JAE-HEUNG , BANG SEUNG-CHAN
Abstract: The channel coding of data groups to be transmitted, is carried-out in a transmitter (100). The transmitter also performs multiplexing and modulation of data groups to output transmission signal. A receiver (200) demodulates received transmission signal and also performs demultiplexing and channel decoding, to output data signal. An Independent claim is also included for method for repeated transmission and reception of coded symbols.
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