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    • 1. 再颁专利
    • Apparatus and method for synchronizing channels in a WCDMA communication system
    • 用于在WCDMA通信系统中同步信道的装置和方法
    • USRE42827E1
    • 2011-10-11
    • US11440402
    • 2006-05-24
    • Hi-Chan MoonChae-Man LimSeung-Joo MaengSoon-Young YoonHyeon-Woo LeeHee-Won KangJae-Min Ahn
    • Hi-Chan MoonChae-Man LimSeung-Joo MaengSoon-Young YoonHyeon-Woo LeeHee-Won KangJae-Min Ahn
    • H04B7/216
    • H04B7/2668H04B1/7083H04W56/00
    • A synchronization (sync) code communication device for a CDMA communication system. A base station sync code transmission device comprises a primary sync code transmitter and a secondary sync code transmitter. The primary sync code transmitter is for generating and then transmitting a primary sync code at a first location in a transmission frame. The primary sync code is for acquiring synchronization at a starting point of a frame and the frame is equal to one period of a spreading code. The secondary sync code transmitter is for generating and then transmitting a secondary sync code at a second location in a frame. The secondary sync codes are assigned to base station groups, one to a group. A mobile station sync code receiving device comprises a primary sync code acquisition decider and a base station group decider. The primary sync code acquisition decider is for acquiring a primary sync code received at a first location in a frame, and then acquiring synchronization at a starting point of a frame. The base station group decider is enabled upon acquisition of the primary sync code, receives a secondary sync code transmitted at a second location in the frame, and then determines the base station group to which the transmitting base station belongs.
    • 用于CDMA通信系统的同步(同步)码通信设备。 基站同步码发送装置包括主同步码发射机和辅同步码发射机。 主同步码发射器用于在传输帧中的第一位置处产生并发送主同步码。 主同步码用于在帧的起始点获取同步,并且帧等于扩展码的一个周期。 次同步码发射器用于在帧中的第二位置处产生并发送次同步码。 辅助同步码分配给基站组,一组到一组。 移动台同步码接收装置包括主同步码采集决定器和基站组判定器。 主同步码获取决定器用于获取在帧中的第一位置处接收到的主同步码,然后在帧的起始点处获取同步。 在获取主同步码后,启用基站组决定器,接收在帧中第二个位置发送的辅助同步码,然后确定发送基站所属的基站组。
    • 2. 发明授权
    • Apparatus and method for synchronizing channels in a W-CDMA communication system
    • 一种在W-CDMA通信系统中同步信道的装置和方法
    • US06741578B1
    • 2004-05-25
    • US09562381
    • 2000-05-01
    • Hi-Chan MoonChae-Man LimSeung-Joo MaengSoon-Young YoonHyeon-Woo LeeHee-Won KangJae-Min Ahn
    • Hi-Chan MoonChae-Man LimSeung-Joo MaengSoon-Young YoonHyeon-Woo LeeHee-Won KangJae-Min Ahn
    • H04J1300
    • H04B7/2668H04B1/7083H04W56/00
    • A synchronization (sync) code communication device for a CDMA communication system. A base station sync code transmission device comprises a primary sync code transmitter and a secondary sync code transmitter. The primary sync code transmitter is for generating and then transmitting a primary sync code at a first location in a transmission frame. The primary sync code is for acquiring synchronization at a starting point of a frame and the frame is equal to one period of a spreading code. The secondary sync code transmitter is for generating and then transmitting a secondary sync code at a second location in a frame. The secondary sync codes are assigned to base station groups, one to a group. A mobile station sync code receiving device comprises a primary sync code acquisition decider and a base station group decider. The primary sync code acquisition decider is for acquiring a primary sync code received at a first location in a frame, and then acquiring synchronization at a starting point of a frame. The base station group decider is enabled upon acquisition of the primary sync code, receives a secondary sync code transmitted at a second location in the frame, and then determines the base station group to which the transmitting base station belongs.
    • 用于CDMA通信系统的同步(同步)码通信设备。 基站同步码发送装置包括主同步码发射机和辅同步码发射机。 主同步码发射器用于在传输帧中的第一位置处产生并发送主同步码。 主同步码用于在帧的起始点获取同步,并且帧等于扩展码的一个周期。 次同步码发射器用于在帧中的第二位置处产生并发送次同步码。 辅助同步码分配给基站组,一组到一组。 移动台同步码接收装置包括主同步码采集决定器和基站组判定器。 主同步码获取决定器用于获取在帧中的第一位置处接收到的主同步码,然后在帧的起始点获取同步。 在获取主同步码后,启用基站组决定器,接收在帧中第二个位置发送的辅助同步码,然后确定发送基站所属的基站组。
    • 3. 发明授权
    • Apparatus and method for allocating Walsh codes in CDMA communication system having variable rate channel structure
    • 用于在具有可变速率信道结构的CDMA通信系统中分配沃尔什码的装置和方法
    • US06937559B1
    • 2005-08-30
    • US09503258
    • 2000-02-14
    • Jae-Yoel KimHee-Won KangJae-Min AhnSeung-Joo Maeng
    • Jae-Yoel KimHee-Won KangJae-Min AhnSeung-Joo Maeng
    • H04B1/707H04B7/216H04B7/26H04J11/00H04J13/18
    • H04J13/0048H04B7/264H04B2201/70703H04J13/18
    • A channel spreading device for a CDMA communication system is disclosed. The channel spreading device includes; a storage medium for storing orthogonal code numbers which cannot maintain an orthogonality when an orthogonal code for a maximum data rate is used; a controller for determining whether the respective orthogonal code numbers stored in the storage medium are available at a given data rate, when at least one data user requests data transmission at the given data rate, and outputting the determined available orthogonal code numbers and control signals according to the determination result; a plurality of channel transmitters, provided in association with the orthogonal code numbers from the controller, for spreading data from the data user with an orthogonal code corresponding to the orthogonal code number from the controller; and a plurality of multipliers for multiplying outputs of the channel transmitters by control signals from the controller, a plurality of channel transmission circuits; a storage medium for storing orthogonal code numbers which cannot maintain an orthogonality when an orthogonal code for a maximum data rate is used; a controller for determining whether the respective orthogonal code numbers stored in the storage medium are available at a given data rate, when at least one data user requests data transmission at the given data rate, and outputting the determined available orthogonal code numbers and control signals according to the determination result.
    • 公开了一种用于CDMA通信系统的信道扩展装置。 信道扩展装置包括: 用于存储当使用最大数据速率的正交码时不能维持正交性的正交码数的存储介质; 控制器,用于当至少一个数据用户以给定数据速率请求数据传输时,确定存储在存储介质中的各个正交码号是否以给定数据速率可用,并且根据给定数据速率输出所确定的可用正交码号和控制信号 确定结果; 与来自控制器的正交码号相关联地提供的多个信道发射机,用于利用来自控制器的与正交码数对应的正交码从数据用户扩展数据; 以及多个乘法器,用于通过来自控制器,多个信道传输电路的控制信号来使信道发射机的输出相乘; 用于存储当使用最大数据速率的正交码时不能维持正交性的正交码数的存储介质; 控制器,用于当至少一个数据用户以给定数据速率请求数据传输时,确定存储在存储介质中的各个正交码号是否以给定数据速率可用,并且根据给定数据速率输出所确定的可用正交码号和控制信号 确定结果。
    • 5. 发明授权
    • Method for generating complex quasi-orthogonal code and apparatus and method for spreading channel data using the quasi-orthogonal code in CDMA communication system
    • 用于生成复合准正交码的方法,以及用于在CDMA通信系统中使用准正交码扩展信道数据的装置和方法
    • US06671251B1
    • 2003-12-30
    • US09480963
    • 2000-01-11
    • Young-Ky KimKyeong-Cheol YangJae-Min AhnJae-Yoel KimHee-Won KangSeung-Joo Maeng
    • Young-Ky KimKyeong-Cheol YangJae-Min AhnJae-Yoel KimHee-Won KangSeung-Joo Maeng
    • H04J1100
    • H04J13/0048H04J13/0025H04J13/102
    • 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.
    • 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。
    • 7. 发明授权
    • Device and method for controlling powers of orthogonal channel and quasi-orthogonal channel in CDMA communication system
    • CDMA通信系统正交信道和准正交信道功率的装置及方法
    • US06671266B1
    • 2003-12-30
    • US09277653
    • 1999-03-26
    • Hi-Chan MoonJae-Heung YeomSoon-Young YoonJae-Min Ahn
    • Hi-Chan MoonJae-Heung YeomSoon-Young YoonJae-Min Ahn
    • H04B7216
    • H04W52/24H04B1/707H04J13/0003H04J13/0022H04J13/004H04W52/44
    • A power control device for a CDMA communication system using different kinds of spreading codes. In the power control device for a base station device, a first channel generator generates a first channel signal by spreading first input data with an orthogonal code and a second channel generator generates a second channel signal by spreading second input data with a quasi-orthogonal code. The second channel signal has a gain higher than that of the first channel signal. A first gain controller controls power of the first channel signal and a second gain controller controls power of the second channel signal. An adder adds the first channel signal to the second channel signal, and a spreader spreads a signal output from the adder with a pseudo-random noise (PN) code. The base station transmits a response request message to a mobile station via the second channel, and retransmits the response request message after increasing a transmission power of the second channel when a response message is not received from the mobile station.
    • 一种使用不同种类的扩展码的CDMA通信系统的功率控制装置。 在用于基站装置的功率控制装置中,第一信道发生器通过以正交码扩频第一输入数据来产生第一信道信号,第二信道发生器通过用准正交码扩频第二输入数据来产生第二信道信号 。 第二通道信号的增益高于第一通道信号的增益。 第一增益控制器控制第一通道信号的功率,第二增益控制器控制第二通道信号的功率。 加法器将第一通道信号加到第二通道信号上,扩展器以伪随机噪声(PN)代码扩展从加法器输出的信号。 基站经由第二信道向移动台发送应答请求消息,并且在不从移动台接收到响应消息的情况下,在增加第二信道的发送功率之后,重发响应请求消息。