公开(公告)号：US20080316913A1

公开(公告)日：2008-12-25

申请号：US12094238

申请日：2006-11-17

申请人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang ,  Eun-Jeong Shin ,  Hye-Kyung Jwa ,  Moon-Sik Lee

发明人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang ,  Eun-Jeong Shin ,  Hye-Kyung Jwa ,  Moon-Sik Lee

IPC分类号： H04J11/00

CPC分类号： H04B7/061 ,  H04L1/06 ,  H04L1/1893 ,  H04L5/0023 ,  H04L5/0044

摘要： The present invention relates to a packet data transmission method in an OFDMA system and an apparatus thereof. The present invention provides a user packet data transmission method including generating a RACH burst for channel information estimation, selecting a first antenna among a plurality of antennas, transmitting the RACH burst through the first antenna to a base station, receiving a data transmission acceptance signal from the base station, in response to the RACH burst, transmitting user packet data through the first antenna when receiving a signal indicating that the data transmission is allowed, and selecting a second antenna that is difference from the first antenna and transmitting a RACH burst through the second antenna when receiving a signal indicating that the data transmission is not allowed, and a transmitting apparatus of a mobile station having the plurality of antennas. According to the present invention, the RACH burst and user packet data are transmitted by using a mobile station having a plurality of antennas in an LTE-applied OFDMA system, and therefore data transmission can be performed with a wide bandwidth and high data rate and a deep fading period that may occur during the data transmission can be reduced, thereby preventing call dropping and improving data transmission performance.

摘要翻译： 本发明涉及OFDMA系统中的分组数据传输方法及其装置。 本发明提供了一种用户分组数据传输方法，包括：生成用于信道信息估计的RACH脉冲串，选择多个天线中的第一天线，通过第一天线发送RACH脉冲串到基站;从基站接收数据传输接收信号; 所述基站响应于所述RACH突发，当接收到指示允许所述数据传输的信号时，通过所述第一天线发送用户分组数据，并且选择与所述第一天线不同并且通过所述第一天线发送RACH突发的第二天线 在接收到指示不允许数据传输的信号的第二天线以及具有多个天线的移动台的发送装置。 根据本发明，通过在LTE应用的OFDMA系统中使用具有多个天线的移动台来发送RACH突发和用户分组数据，因此可以以宽带宽和高数据速率进行数据传输，并且 可以减少在数据传输期间可能发生的深度衰落周期，从而防止呼叫丢弃并提高数据传输性能。

公开(公告)号：US08369300B2

公开(公告)日：2013-02-05

申请号：US12094238

申请日：2006-11-17

申请人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang ,  Eun-Jeong Shin ,  Hye-Kyung Jwa ,  Moon-sik Lee

发明人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang ,  Eun-Jeong Shin ,  Hye-Kyung Jwa ,  Moon-sik Lee

IPC分类号： H04B7/208

CPC分类号： H04B7/061 ,  H04L1/06 ,  H04L1/1893 ,  H04L5/0023 ,  H04L5/0044

摘要： The present invention relates to a packet data transmission method in an OFDMA system and an apparatus thereof. The present invention provides a user packet data transmission method including generating a RACH burst for channel information estimation, selecting a first antenna among a plurality of antennas, transmitting the RACH burst through the first antenna to a base station, receiving a data transmission acceptance signal from the base station, in response to the RACH burst, transmitting user packet data through the first antenna when receiving a signal indicating that the data transmission is allowed, and selecting a second antenna that is difference from the first antenna and transmitting a RACH burst through the second antenna when receiving a signal indicating that the data transmission is not allowed, and a transmitting apparatus of a mobile station having the plurality of antennas. According to the present invention, the RACH burst and user packet data are transmitted by using a mobile station having a plurality of antennas in an LTE-applied OFDMA system, and therefore data transmission can be performed with a wide bandwidth and high data rate and a deep fading period that may occur during the data transmission can be reduced, thereby preventing call dropping and improving data transmission performance.

摘要翻译： 本发明涉及OFDMA系统中的分组数据传输方法及其装置。 本发明提供了一种用户分组数据传输方法，包括：生成用于信道信息估计的RACH脉冲串，选择多个天线中的第一天线，通过第一天线发送RACH脉冲串到基站;从基站接收数据传输接收信号; 所述基站响应于所述RACH突发，当接收到指示允许所述数据传输的信号时，通过所述第一天线发送用户分组数据，并且选择与所述第一天线不同并且通过所述第一天线发送RACH突发的第二天线 在接收到指示不允许数据传输的信号的第二天线以及具有多个天线的移动台的发送装置。 根据本发明，通过在LTE应用的OFDMA系统中使用具有多个天线的移动台来发送RACH突发和用户分组数据，因此可以以宽带宽和高数据速率进行数据传输，并且 可以减少在数据传输期间可能发生的深度衰落周期，从而防止呼叫丢弃并提高数据传输性能。

公开(公告)号：US20090252109A1

公开(公告)日：2009-10-08

申请号：US12158868

申请日：2006-12-22

申请人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Nam-Il Kim ,  Kap-Seok Chang ,  Moon-Sik Lee ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Nam-Il Kim ,  Kap-Seok Chang ,  Moon-Sik Lee ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04W72/04 ,  H04J11/00

CPC分类号： H04B7/0689 ,  H04B7/0408 ,  H04B7/0604 ,  H04B7/068 ,  H04B7/0695 ,  H04L1/0625 ,  H04L25/022 ,  H04L25/0228 ,  H04L27/2647 ,  Y02D70/142 ,  Y02D70/444

摘要： The present invention relates to a method for demodulating a BCH by using an SCH in an OFDM system with transmit diversity, and a transmitting apparatus and a receiving apparatus using the same. For this purpose, the present invention provides a transmit diversity transmission method for a transmitting apparatus of a base station that generates an SCH symbol and a BCH symbol, maps the SCH symbol and the BCH symbol to an OFDM signal, converts the OFDM signal into a time domain signal, and transmits the OFDM signal trough a selected antenna among a plurality of antennas. In addition, the present invention provides a method for demodulating a BCH by using an SCH to a mobile station that receives an OFDM signal from the base station, filters an SCH and a BCH from the OFDM signal, converts the OFDM signal to a frequency domain signal, calculates a channel estimation value by using the SCH and the BCH, and coherently demodulates the BCH. According to the present invention, coherent demodulation of a BCH can reduce a frame error generation probability, minimize a channel estimation error due to fading, reduce time for checking the number of antennas of the base station and time for demodulating the BCH, and reduce power consumption.

摘要翻译： 本发明涉及一种使用具有发射分集的OFDM系统中的SCH解调BCH的方法，以及使用该方法的发送装置和接收装置。 为此，本发明提供一种用于生成SCH符号和BCH符号的基站的发送装置的发送分集发送方法，将SCH符号和BCH符号映射到OFDM信号，将OFDM信号变换为 时域信号，并且通过多个天线中的所选天线发送OFDM信号。 此外，本发明提供了一种通过使用SCH对从基站接收OFDM信号的SCH进行解调的BCH的方法，从OFDM信号对SCH和BCH进行滤波，将OFDM信号转换为频域 信号，通过使用SCH和BCH来计算信道估计值，并相干地解调BCH。 根据本发明，BCH的相干解调可以降低帧错误生成概率，使由于衰落引起的信道估计误差最小化，减少用于检查基站天线数量的时间和用于解调BCH的时间，并且降低功率 消费。

公开(公告)号：US20100020901A1

公开(公告)日：2010-01-28

申请号：US12307909

申请日：2007-07-05

申请人： Hyeong-Geun Park ,  Il-Gyu Kim ,  Young-Jo Ko ,  Kap-Seok Chang ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Hyeong-Geun Park ,  Il-Gyu Kim ,  Young-Jo Ko ,  Kap-Seok Chang ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04L27/00

CPC分类号： H04L27/2634 ,  H04B7/022 ,  H04L27/2613 ,  H04L27/2655

摘要： When a plurality of sectors transmit the same signal in a communication system, the same signal is transmitted after a weight is applied to the same signal. At this time, defective reception of the same signal in a terminal may be reduced by setting a weight pattern differently according to a symbol transmission time and a sector number

摘要翻译： 当多个扇区在通信系统中发送相同的信号时，在将权重施加到相同的信号之后发送相同的信号。 此时，可以通过根据符号传输时间和扇区号不同地设置加权模式来减少终端中相同信号的接收不良

公开(公告)号：US20090219882A1

公开(公告)日：2009-09-03

申请号：US12093284

申请日：2006-11-10

申请人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Nam-Il Kim ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Nam-Il Kim ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04W72/04 ,  H04J11/00 ,  H04K1/00

CPC分类号： H04L25/03866 ,  H04J11/0069 ,  H04L27/2656 ,  H04L27/2657

摘要： 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.

摘要翻译： 提供了小区搜索方法，前向链路帧发送方法，使用该方法的装置和前向链路帧结构。 小区搜索装置包括使用前向链路的同步信道获取同步信道符号的同步的同步获取器，以及从包含同步的前向链路信号检测属于目标小区的跳频码字的至少一个跳频码字元素的组检测器 基于所获取的同步，使用与每个小区的扰码对应的码组对应的跳频码字进行序列跳频，基于检测到的跳频码字元素检测目标小区的码组，其中跳频码字 与循环移位操作正交。 因此，可以减少小区搜索时间和小区搜索的复杂度。

公开(公告)号：US20090080385A1

公开(公告)日：2009-03-26

申请号：US12093415

申请日：2006-11-10

申请人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Nam-Il Kim ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Il-Gyu Kim ,  Hyeong-Geun Park ,  Nam-Il Kim ,  Kap-Seok Chang ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04J3/06 ,  H04W56/00

CPC分类号： H04L27/2656 ,  H04J11/0069 ,  H04L5/0016 ,  H04L5/005 ,  H04L27/2613 ,  H04L27/2675

摘要： Provided are a cell search method, a forward link frame transmission method, an apparatus using the methods, and a forward link frame structure in an Orthogonal Frequency Division Multiplexing cellular system, wherein the time it takes to perform a cell search and the complexity of the cell search can be reduced. The cell search apparatus includes a sync acquirer which receives a signal according to a forward link frame comprising a plurality of sync channel symbols each having different intervals between the adjacent sync channel symbols and achieves synchronization of the sync channel symbols using a sync channel of the received signal, and a boundary detector which detects a frame boundary using an interval pattern between the sync channel symbols, based on the achieved synchronization.

摘要翻译： 提供了正交频分复用蜂窝系统中的小区搜索方法，前向链路帧发送方法，使用该方法的装置和前向链路帧结构，其中执行小区搜索所需的时间和 可以减少小区搜索。 小区搜索装置包括：同步获取器，其根据包括多个同步信道符号的前向链路帧接收信号，每个同步信道符号在相邻同步信道符号之间具有不同的间隔，并且使用所接收的同步信道符号的同步信道实现同步信道符号的同步 信号，以及边界检测器，其基于所实现的同步，使用同步信道符号之间的间隔模式来检测帧边界。

公开(公告)号：US09143257B2

公开(公告)日：2015-09-22

申请号：US12634871

申请日：2009-12-10

申请人： Hyeong-Geun Park ,  Il-Gyu Kim ,  Kap-Seok Chang ,  Young-Jo Ko ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Hyeong-Geun Park ,  Il-Gyu Kim ,  Kap-Seok Chang ,  Young-Jo Ko ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04K1/00 ,  H04J13/00 ,  H04L1/00 ,  H04L25/03 ,  H04L25/05 ,  H04L1/18 ,  H04W4/18 ,  H04W48/08

CPC分类号： H04W48/10 ,  H04J13/00 ,  H04L1/0041 ,  H04L1/0046 ,  H04L1/0067 ,  H04L1/0071 ,  H04L1/1845 ,  H04L25/03866 ,  H04L25/05 ,  H04W4/18 ,  H04W48/08 ,  H04W72/0446

摘要： A signal transmitting method according to an exemplary embodiment of the present invention includes channel-coding broadcasting channel information by using a first scrambling code in a first frame within a broadcasting channel information updating period including a plurality of frames, and channel-coding the broadcasting channel information by using a second scrambling code in a second frame within the broadcasting channel information updating period. The second scrambling code is different from the first scrambling code.

公开(公告)号：US08355464B2

公开(公告)日：2013-01-15

申请号：US12515356

申请日：2007-11-16

申请人： Kap-Seok Chang ,  Il-Gyu Kim ,  Hyeong-Geun Park ,  Young-Jo Ko ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Kap-Seok Chang ,  Il-Gyu Kim ,  Hyeong-Geun Park ,  Young-Jo Ko ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04L27/00

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L25/0202

摘要： A downlink frame generation device arrange a plurality of synchronization channel symbols and a plurality of broad-casting channel symbols in a common bandwidth of a system so that the symbols may neighbor each other on the time axis. The downlink frame generation device applies a precoding vector to the synchronization channel symbols and the broadcasting channel symbols to generate a plurality of downlink frames corresponding to a plurality of antennas. The precoding vector is variable by a sector for transmitting a plurality of downlink frames and a subframe in which a plurality of synchronization channel symbols are positioned. The precoding vector is independent of an index of a subcarrier.

摘要翻译： 下行链路帧产生装置在系统的公共带宽中布置多个同步信道符号和多个广播信道符号，使得符号可以在时间轴上彼此相邻。 下行链路帧生成装置对同步信道符号和广播信道符号应用预编码矢量，生成与多个天线对应的多个下行链路帧。 预编码向量由用于发送多个下行链路帧的扇区和多个同步信道符号所在的子帧可变。 预编码向量与子载波的索引无关。

公开(公告)号：US20110044256A1

公开(公告)日：2011-02-24

申请号：US12160719

申请日：2007-05-30

申请人： Kap-Seok Chang ,  Il-Gyu Kim ,  Nam-Il Kim ,  Hyeong-Geun Park ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Kap-Seok Chang ,  Il-Gyu Kim ,  Nam-Il Kim ,  Hyeong-Geun Park ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04W72/04

CPC分类号： H04J11/0079 ,  H04L27/261 ,  H04L27/2613 ,  H04L27/2656 ,  H04L27/2685

摘要： An apparatus for generating a downlink signal and a cell search apparatus are disclosed. An apparatus for generating a downlink signal generates a downlink signal by one unique cell identification code group and a plurality of frame synchronization identification sequences, generates a downlink signal by a plurality of unique cell identification code groups and a plurality of frame synchronization identification sequences, or generates a downlink signal by a plurality of unique cell identification code groups and one frame synchronization identification sequence. A cell search apparatus obtains frame synchronization and identifies cells through a frame synchronization identification sequence and a unique cell identification code group.

摘要翻译： 公开了一种用于生成下行链路信号的装置和小区搜索装置。 用于产生下行链路信号的装置通过一个唯一小区识别码组和多个帧同步识别序列产生下行链路信号，通过多个唯一小区识别码组和多个帧同步识别序列产生下行链路信号，或 通过多个唯一小区识别码组和一个帧同步识别序列生成下行链路信号。 小区搜索装置通过帧同步识别序列和唯一小区识别码组获得帧同步并识别小区。

公开(公告)号：US08737361B2

公开(公告)日：2014-05-27

申请号：US12307909

申请日：2007-07-05

申请人： Hyeong-Geun Park ,  Il-Gyu Kim ,  Young-Jo Ko ,  Kap-Seok Chang ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

发明人： Hyeong-Geun Park ,  Il-Gyu Kim ,  Young-Jo Ko ,  Kap-Seok Chang ,  Hyo-Seok Yi ,  Young-Hoon Kim ,  Seung-Chan Bang

IPC分类号： H04W4/00 ,  H04H20/67

CPC分类号： H04L27/2634 ,  H04B7/022 ,  H04L27/2613 ,  H04L27/2655

摘要： When a plurality of sectors transmit the same signal in a communication system, the same signal is transmitted after a weight is applied to the same signal. At this time, defective reception of the same signal in a terminal may be reduced by setting a weight pattern differently according to a symbol transmission time and a sector number.

摘要翻译： 当多个扇区在通信系统中发送相同的信号时，在将权重施加到相同的信号之后发送相同的信号。 此时，通过根据符号发送时间和扇区号不同地设定权重模式，可以减少终端中相同信号的接收不良。