公开(公告)号：US07764649B2

公开(公告)日：2010-07-27

申请号：US11273203

申请日：2005-11-14

申请人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

发明人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

IPC分类号： H04W4/00

CPC分类号： H04W72/048 ,  H04W16/10 ,  H04W36/20 ,  H04W72/0453

摘要： Disclosed is a hard handover method and system for use in a Broadband Wireless Access (BWA) communication system. The method and system includes dividing a data transmission field for mobile stations (MSs) into a handover field and a normal user field, allocating at least one subchannel in the normal user field to non-handover MSs located in a non-handover region, allocating at least one subchannel in the handover field to handover MSs located in a handover region, and performing communication through the allocated at least one subchannel.

摘要翻译： 公开了一种在宽带无线接入（BWA）通信系统中使用的硬切换方法和系统。 所述方法和系统包括将移动台（MS）的数据传输区划分为切换区和普通用户区，在正常用户区中分配至少一个子信道到位于非切换区域的非切换MS，分配 切换字段中的至少一个子信道切换位于切换区域中的MS，以及通过所分配的至少一个子信道执行通信。

公开(公告)号：US20060135164A1

公开(公告)日：2006-06-22

申请号：US11273203

申请日：2005-11-14

申请人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

发明人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

IPC分类号： H04Q7/20

CPC分类号： H04W72/048 ,  H04W16/10 ,  H04W36/20 ,  H04W72/0453

摘要： Disclosed is a hard handover method and system for use in a Broadband Wireless Access (BWA) communication system. The method and system includes dividing a data transmission field for mobile stations (MSs) into a handover field and a normal user field, allocating at least one subchannel in the normal user field to non-handover MSs located in a non-handover region, allocating at least one subchannel in the handover field to handover MSs located in a handover region, and performing communication through the allocated at least one subchannel.

摘要翻译： 公开了一种在宽带无线接入（BWA）通信系统中使用的硬切换方法和系统。 所述方法和系统包括将移动台（MS）的数据传输区划分为切换区和普通用户区，在正常用户区中分配至少一个子信道到位于非切换区域的非切换MS，分配 切换字段中的至少一个子信道切换位于切换区域中的MS，以及通过所分配的至少一个子信道执行通信。

公开(公告)号：US08451772B2

公开(公告)日：2013-05-28

申请号：US12658650

申请日：2010-02-12

申请人： Young-Ky Kim ,  Jae-Ho Jeon ,  Il-Whan Kim ,  Seung-Joo Maeng

发明人： Young-Ky Kim ,  Jae-Ho Jeon ,  Il-Whan Kim ,  Seung-Joo Maeng

IPC分类号： H04B7/212

CPC分类号： H04W16/14 ,  H04W72/0453

摘要： A base station includes a center frequency setting unit, a local oscillator, a baseband processor, and an RF processor. In the event of a frequency band change, the center frequency setting unit sets a center frequency of a use frequency channel to have a predetermined offset value with respect to a center frequency before the frequency band change. The local oscillator generates an LO frequency signal according to the center frequency set by the center frequency setting unit. The baseband processor generates a downlink baseband signal. The RF processor uses the LO frequency signal to convert the downlink baseband signal into an RF signal prior to transmission.

摘要翻译： 基站包括中心频率设置单元，本地振荡器，基带处理器和RF处理器。 在频带变化的情况下，中心频率设定单元将频率信道的中心频率设定为相对于频带变化前的中心频率具有规定的偏移值。 本地振荡器根据由中心频率设定单元设定的中心频率产生LO频率信号。 基带处理器生成下行链路基带信号。 RF处理器使用LO频率信号在传输之前将下行链路基带信号转换成RF信号。

公开(公告)号：US20100208717A1

公开(公告)日：2010-08-19

申请号：US12658650

申请日：2010-02-12

申请人： Young-Ky Kim ,  Jae-Ho Jeon ,  Il-Whan Kim ,  Seung-Joo Maeng

发明人： Young-Ky Kim ,  Jae-Ho Jeon ,  Il-Whan Kim ,  Seung-Joo Maeng

IPC分类号： H04B7/216 ,  H04B7/00

CPC分类号： H04W16/14 ,  H04W72/0453

摘要： A base station includes a center frequency setting unit, a local oscillator, a baseband processor, and an RF processor. In the event of a frequency band change, the center frequency setting unit sets a center frequency of a use frequency channel to have a predetermined offset value with respect to a center frequency before the frequency band change. The local oscillator generates an LO frequency signal according to the center frequency set by the center frequency setting unit. The baseband processor generates a downlink baseband signal. The RF processor uses the LO frequency signal to convert the downlink baseband signal into an RF signal prior to transmission.

摘要翻译： 基站包括中心频率设置单元，本地振荡器，基带处理器和RF处理器。 在频带变化的情况下，中心频率设定单元将频率信道的中心频率设定为相对于频带变化前的中心频率具有规定的偏移值。 本地振荡器根据由中心频率设定单元设定的中心频率产生LO频率信号。 基带处理器生成下行链路基带信号。 RF处理器使用LO频率信号在传输之前将下行链路基带信号转换成RF信号。

公开(公告)号：US07002901B2

公开(公告)日：2006-02-21

申请号：US09729495

申请日：2000-12-04

申请人： Yu-Suk Yun ,  Seung-Joo Maeng ,  Hee-Won Kang ,  Soon-Young Yoon ,  Young-Ky Kim

发明人： Yu-Suk Yun ,  Seung-Joo Maeng ,  Hee-Won Kang ,  Soon-Young Yoon ,  Young-Ky Kim

IPC分类号： H04J11/00

CPC分类号： H04J13/0048 ,  H04B1/707 ,  H04J13/0044 ,  H04J13/18 ,  H04J13/20

摘要： A method for assigning orthogonal codes used for a first system and a second system in a CDMA system including channels of the first system for spreading a pilot signal, a sync signal, a paging signal and a traffic signal with a first set of orthogonal codes corresponding to orthogonal code numbers in different rows from a set of orthogonal codes arranged in a matrix of m rows and m columns, and channels of the second system for spreading a second set of orthogonal codes corresponding to orthogonal code numbers different from said orthogonal code numbers for the first set of orthogonal codes. The orthogonal codes for the second system are transmitted at a data rate higher than a data rate of the first system. The method comprises the steps of: assigning orthogonal codes corresponding to the orthogonal code numbers of the orthogonal code set associated with at least one of 2n rows to the channels of the first system, wherein a set of the orthogonal codes are arranged in a matrix of subsets of orthogonal codes and inversed orthogonal codes, each subset including 2n rows and 2n columns; and assigning orthogonal codes corresponding to the orthogonal code numbers of the orthogonal code set associated with at least one of the remaining rows to the second system.

公开(公告)号：US06807221B1

公开(公告)日：2004-10-19

申请号：US09442379

申请日：1999-11-17

申请人： Jae-Yoel Kim ,  Young-Ky Kim ,  Hee-Won Kang ,  Seung-Joo Maeng

发明人： Jae-Yoel Kim ,  Young-Ky Kim ,  Hee-Won Kang ,  Seung-Joo Maeng

IPC分类号： H04B1707

CPC分类号： H04J13/12 ,  H04B7/2628 ,  H04J13/0048 ,  H04L27/22

摘要： A channel spreading device for a base station in a CDMA communication system is described. The device comprises a spreading code generator for generating a real-component spreading code and an imaginary-component spreading code corresponding to a designated channel spreading code index; a circuit receiving a mode control signal, for disabling generation of the imaginary-component spreading code when the received mode control signal indicates a BPSK (Binary Phase Shift Keying) modulation mode; and a complex multiplier receiving a channel signal, for complex multiplying the received channel signal by the spreading codes to spread the channel signal.

摘要翻译： 描述CDMA通信系统中用于基站的信道扩展装置。 该装置包括扩展码发生器，用于产生对应于指定信道扩展码索引的实分量扩展码和虚分量扩展码; 接收模式控制信号的电路，用于当接收模式控制信号指示BPSK（二进制相移键控）调制模式时禁止产生虚分量扩展码; 以及接收信道信号的复数乘法器，用于将接收的信道信号复用乘以扩展码以扩展信道信号。

公开(公告)号：US06671251B1

公开(公告)日：2003-12-30

申请号：US09480963

申请日：2000-01-11

申请人： Young-Ky Kim ,  Kyeong-Cheol Yang ,  Jae-Min Ahn ,  Jae-Yoel Kim ,  Hee-Won Kang ,  Seung-Joo Maeng

发明人： Young-Ky Kim ,  Kyeong-Cheol Yang ,  Jae-Min Ahn ,  Jae-Yoel Kim ,  Hee-Won Kang ,  Seung-Joo Maeng

IPC分类号： H04J1100

CPC分类号： H04J13/0048 ,  H04J13/0025 ,  H04J13/102

摘要： A method for generating a complex quasi-orthogonal code for channel spreading in a CDMA communication system is disclosed. The method comprises generating an M-sequence having a length N and a specific sequence having a good full correlation property with the M-sequence; generating a predetermined number of other specific sequences by circularly shifting said specific sequence; generating a predetermined number of other M-sequences by circularly shifting said M-sequence, and column permutating the circularly shifted specific sequences in a same method as a column permutation method for converting the generated M-sequences to Walsh orthogonal codes to generate candidate masks; generating quasi-orthogonal code representatives by operating the candidate masks and the Walsh orthogonal codes having the same length as the mask candidates; and selecting quasi-orthogonal code candidates satisfying a partial correlation between the Walsh orthogonal codes out of the generated quasi-orthogonal code representatives and a partial correlation between different quasi-orthogonal codes, and selecting masks pertinent to generating the selected quasi-orthogonal codes.

摘要翻译： 公开了一种用于在CDMA通信系统中生成用于信道扩展的复合准正交码的方法。 该方法包括产生具有长度N的M序列和与M序列具有良好全相关特性的特定序列; 通过循环移位所述特定序列产生预定数量的其他特定序列; 通过循环移位所述M序列来产生预定数量的其他M序列，并且以与用于将所生成的M序列转换为沃尔什正交码的列置换方法相同的方法对列进行排列，以生成候选掩模; 通过操作候选掩码和与掩码候选具有相同长度的沃尔什正交码来产生准正交码表示; 以及选择满足所生成的准正交码表示中的沃尔什正交码之间的部分相关性的准正交码候选和不同准正交码之间的部分相关性，以及选择与生成选择的准正交码相关的掩码。

公开(公告)号：US06707788B1

公开(公告)日：2004-03-16

申请号：US09456731

申请日：1999-12-08

申请人： Jae-Yoel Kim ,  Hee-Won Kang ,  Seung-Joo Maeng ,  Young-Ky Kim

发明人： Jae-Yoel Kim ,  Hee-Won Kang ,  Seung-Joo Maeng ,  Young-Ky Kim

IPC分类号： H04B1500

CPC分类号： H04J13/00 ,  H04B1/707 ,  H04J13/0022 ,  H04J13/10

摘要： A demodulation method in a mobile station having a plurality of channels, for receiving a signal from a base station. In one aspect, the base station has a plurality of channels, a BPSK spreader for orthogonally spreading symbol data of each channel with an assigned orthogonal code, and a QPSK spreader for PN-spreading the orthogonally spread signal with a PN code. In the demodulation method, a first QPSK despreader in the mobile station receives PN-spread signal and PN-despreads the PN-spread signal with the PN code, and a second QPSK despreader orthogonally despreads the PN-despread signal with a complex orthogonal code having the real and imaginary parts of the assigned orthogonal code. In another aspect, the base station has a plurality of channels, a QPSK spreader for spreading symbol data of each channel by the real and imaginary parts of its assigned orthogonal code, and a QPSK spreader for PN-spreading the orthogonally spread signal with a PN code. In the demodulation method, a mobile station receives the PN-spread signal from the base station, PN-despreads the received signal with a PN code by a QPSK despreader, and orthogonally despreads the PN-despread signal with the assigned orthogonal code by a BPSK despreader. In both aspects, during the orthogonal despreading, the complex conjugate of the estimated pilot channel value is multiplied by the orthogonally despread signal, for compensation.

摘要翻译： 一种具有多个信道的移动站中的解调方法，用于从基站接收信号。 一方面，基站具有多个信道，用于以分配的正交码正交扩展每个信道的符号数据的BPSK扩展器，以及用PN码对正交扩展信号进行PN扩展的QPSK扩展器。 在解调方法中，移动站中的第一QPSK去扩频器接收PN扩展信号，并用PN码对PN扩展信号进行PN解扩，第二QPSK去扩频器以具有复数正交码的PN解扩信号正交解扩， 分配的正交码的实部和虚部。 另一方面，基站具有多个信道，QPSK扩展器，用于通过其分配的正交码的实部和虚部扩展每个信道的符号数据;以及QPSK扩展器，用于PN扩频，具有PN的正交扩展信号 码。 在解调方法中，移动台从基站接收PN扩展信号，用QPSK去扩频器对PN码进行PN解扩，并通过BPSK对所分配的正交码对PN解扩信号进行正交解扩 解散器 在两个方面，在正交解扩过程中，将估计的导频信道值的复共轭乘以正交解扩信号以进行补偿。

公开(公告)号：US20050192058A1

公开(公告)日：2005-09-01

申请号：US11059560

申请日：2005-02-17

申请人： Dae-Kwon Jung ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Ha-Young Yang ,  Myung-Kwang Byun ,  Hee-Kwang Lee ,  Chang-Soo Park

发明人： Dae-Kwon Jung ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Ha-Young Yang ,  Myung-Kwang Byun ,  Hee-Kwang Lee ,  Chang-Soo Park

IPC分类号： H04B7/06 ,  H04B7/08 ,  H04W16/24 ,  H04W16/28 ,  H04M1/00

CPC分类号： H04W16/28 ,  H04B7/0615 ,  H04B7/086 ,  H04W16/24

摘要： An apparatus and method are provided for managing sectors in a transmission operation of a base station including a smart antenna system forming directional beams using a plurality of antenna elements. The apparatus and method comprise determining whether a call connected to a mobile station is a voice call or a data call; multiplying a transmission signal to the mobile station by predetermined complex weight vectors selected according to the call type; and forming a transmission beam for a corresponding sector by summing the multiplied values according to the antenna elements.

摘要翻译： 提供了一种用于管理包括使用多个天线元件形成定向波束的智能天线系统的基站的传输操作中的扇区的装置和方法。 该装置和方法包括确定连接到移动台的呼叫是否是语音呼叫或数据呼叫; 通过根据呼叫类型选择的预定复权重向量将传输信号与移动台相乘; 以及通过根据所述天线元素对相乘的值求和来形成对应扇区的发射波束。

公开(公告)号：US20060153143A1

公开(公告)日：2006-07-13

申请号：US11302494

申请日：2005-12-14

申请人： Jae-Hyok Lee ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Sung-Kwon Jo ,  Ji-Won Lee

发明人： Jae-Hyok Lee ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Sung-Kwon Jo ,  Ji-Won Lee

IPC分类号： H04B7/216

CPC分类号： H04W24/02 ,  H04W88/08 ,  H04W88/14

摘要： A system includes a first base station (BS) adapted to generate, upon detecting an access request signal for a second BS and transmitted from a mobile terminal (MT), an access detection message indicating the detection, and a network element coupled between the first and second BS and adapted to receive the access detection message. The second BS is adapted to receive the access detection message from the network element.

摘要翻译： 一种系统包括：第一基站（BS），适于在检测到用于第二BS并从移动终端（MT）发送的）接入请求信号时产生指示该检测的接入检测消息，以及耦合在第一基站 和第二BS，并适于接收访问检测消息。 第二BS适于从网络元件接收访问检测消息。