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    Device and method for reducing the peak-to-average power ratio of a mobile station's transmit power
    1.
    发明授权
    Device and method for reducing the peak-to-average power ratio of a mobile station's transmit power 失效
    用于降低移动台发射功率的峰值与平均功率比的装置和方法

    公开(公告)号：US06459723B1

    公开(公告)日：2002-10-01

    申请号：US09310389

    申请日：1999-05-12

    申请人： Je-Woo Kim ,  Young-Jun Hwang ,  Soon-Young Yoon ,  Jae-Heung Yeom

    发明人： Je-Woo Kim ,  Young-Jun Hwang ,  Soon-Young Yoon ,  Jae-Heung Yeom

    IPC分类号： H04B1707

    CPC分类号： H04W52/367 ,  H04B1/707 ,  H04B2201/70706 ,  H04W52/52

    摘要： A device and method are provided for reducing the peak-to-average power ratio of a mobile station's transmit power in a mobile communication system by spreading and modulating the transmission data by a complex spreading sequence. The complex spreading sequence is generated to have a plurality of chips and a phase difference of 90° between every two successive complex chips in response to each chip of a PN (Pseudo Noise) sequence. The device and method flexibly control the mobile transmit power by limiting its peak-to-average power ratio to a specific range and thus confining the mobile transmit power to a linear characteristic portion in a characteristic curve of a power amplifier. The phase of the complex spreading sequence is prevented from shifting by 180° (i.e., &pgr;) to maintain the mobile transmit power in the linear portion of the power amplifier characteristic curve.

    摘要翻译： 提供一种装置和方法，用于通过以复扩展顺序扩展和调制发送数据来减少移动台在移动通信系统中的发射功率的峰均功率比。 响应于PN（伪噪声）序列的每个芯片，产生复扩展序列以具有多个芯片，并且在每两个连续复合码片之间具有90°的相位差。 该装置和方法通过将其峰值平均功率比限制在特定范围并且因此将移动发射功率限制在功率放大器的特性曲线中的线性特征部分来灵活地控制移动发射功率。 复数扩展序列的相位被防止偏移180°（即，pi），以将移动发射功率保持在功率放大器特性曲线的线性部分。

    TSTD transmitter for limiting transmission power of antenna and controlling method thereof for base station in mobile communication system
    6.
    发明授权
    TSTD transmitter for limiting transmission power of antenna and controlling method thereof for base station in mobile communication system 有权
    用于限制天线发射功率的TSTD发射机及其在移动通信系统中的基站的控制方法

    公开(公告)号：US06529496B1

    公开(公告)日：2003-03-04

    申请号：US09365797

    申请日：1999-08-03

    申请人： Jae-Heung Yeom ,  Soon-Young Yoon ,  Jae-Min Ahn

    发明人： Jae-Heung Yeom ,  Soon-Young Yoon ,  Jae-Min Ahn

    IPC分类号： H04J300

    CPC分类号： H04B7/0667 ,  Y02D70/444

    摘要： A device and method are provided for limiting a power of a signal transmitted through any antenna to a maximum transmission power of the antenna in a TSTD (Time-Switched Transmission Diversity) transmitter of a base station of a mobile communication system. In a TSTD transmitter including at least two antennas and a pattern storage for storing a maximum transmission power limit value and switching patterns of a plurality of user data to be transmitted through the antennas, transmission powers assigned to antennas are measured upon receipt of new user data. A switching pattern is determined such that a value obtained by adding one of the transmission powers to a transmission power of the new user data does not exceed the maximum transmission power limit value.

    摘要翻译： 提供了一种装置和方法，用于将移动通信系统的基站的TSTD（时间切换传输分集）发射机中的通过任何天线发送的信号的功率限制为天线的最大发射功率。 在包括至少两个天线的TSTD发射机和用于存储要通过天线发送的多个用户数据的最大发射功率限制值和切换模式的模式存储器中，分配给天线的发射功率在接收到新的用户数据时被测量 。 确定切换模式，使得通过将一个发送功率添加到新用户数据的发送功率而获得的值不超过最大发送功率限制值。

    Method and apparatus for link adaptation in a mobile communication system
    7.
    发明授权
    Method and apparatus for link adaptation in a mobile communication system 有权
    移动通信系统中链路自适应的方法和装置

    公开(公告)号：US06782271B2

    公开(公告)日：2004-08-24

    申请号：US09892803

    申请日：2001-06-27

    申请人： Hoon Huh ,  Yu-Suk Yun ,  Soon-Young Yoon ,  Jae-Heung Yeom ,  Sang-Hyun Yang ,  Hee-Won Kang

    发明人： Hoon Huh ,  Yu-Suk Yun ,  Soon-Young Yoon ,  Jae-Heung Yeom ,  Sang-Hyun Yang ,  Hee-Won Kang

    IPC分类号： H04B700

    CPC分类号： H04W52/267 ,  H04W52/24 ,  H04W52/241 ,  H04W52/247

    摘要： Disclosed is a method for determining a forward data rate and a forward transmission power level in a mobile communication system. An access terminal measures a C/I of a forward pilot channel, determines a forward data rate by matching the measured C/I with a reference C/I, creates a difference between the measured C/I and the reference C/I as margin information, and transmits the determined forward data rate and margin information over a reverse transmission channel. Upon receipt of the forward data rate and margin information, an access network decreases a transmission power level by power corresponding to the margin information and performs forward transmission at the forward data rate at the decreased transmission power level.

    摘要翻译： 公开了一种用于确定移动通信系统中的前向数据速率和前向传输功率电平的方法。 接入终端测量前向导频信道的C / I，通过将测量的C / I与参考C / I匹配来确定正向数据速率，将测量的C / I和参考C / I之间的差作为余量 信息，并通过反向传输信道发送所确定的前向数据速率和边缘信息。 在接收到前向数据速率和边缘信息时，接入网络通过与边缘信息相对应的功率降低发送功率电平，并以降低的发送功率电平以正向数据速率进行前向发送。

    Device and method for mobile station for receiving signals transmitted from a base station
    8.
    发明授权
    Device and method for mobile station for receiving signals transmitted from a base station 失效
    移动台用于接收从基站发送的信号的装置和方法

    公开(公告)号：US06690665B1

    公开(公告)日：2004-02-10

    申请号：US09311547

    申请日：1999-05-13

    申请人： Jin-Woo Choi ,  Soon-Young Yoon ,  Jong-Han Kim ,  Su-Won Park ,  Jae-Heung Yeom

    发明人： Jin-Woo Choi ,  Soon-Young Yoon ,  Jong-Han Kim ,  Su-Won Park ,  Jae-Heung Yeom

    IPC分类号： H04L1250

    CPC分类号： H04B7/0604 ,  H04B17/336 ,  H04B2201/70701 ,  H04W52/143 ,  H04W52/24

    摘要： A receiving device for a mobile station receives signals transmitted from a base station having a time-switched transmission diversity (TSTD) function. In the receiving device, a despreader despreads channel signals which have been transmitted in a TSTD mode of operation. A pilot separator separates a pilot signal from the despread channel signals. A channel estimator generates a channel estimation signal by selecting pilot signals transmitted from a same antenna of a transmitter according to a TSTD pattern of the transmitter. A compensator compensates the channel signals with the channel estimation signal.

    摘要翻译： 用于移动台的接收装置接收从具有时间交换传输分集（TSTD）功能的基站发送的信号。 在接收装置中，去扩展器对已经以TSTD操作模式发送的信道信号进行解扩。 导频分离器将导频信号与解扩频道信号分开。 信道估计器通过根据发射机的TSTD模式选择从发射机的同一天线发送的导频信号来生成信道估计信号。 补偿器用信道估计信号补偿信道信号。