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    • 1. 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。
    • 3. 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。
    • 4. 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。