METHOD FOR ALLOCATING CODE TO CELLS AND PLANNING CELLS IN OFDM CELLULAR SYSTEM
    22.
    发明申请
    METHOD FOR ALLOCATING CODE TO CELLS AND PLANNING CELLS IN OFDM CELLULAR SYSTEM 审中-公开
    在OFDM细胞系统中将细胞分配给细胞和规划细胞的方法

    公开(公告)号:US20100061322A1

    公开(公告)日:2010-03-11

    申请号:US12516032

    申请日:2007-11-23

    IPC分类号: H04W4/00

    CPC分类号: H04W56/0045 H04J11/0069

    摘要: A piece of user equipment (UE), which has received more than two synchronization codes at the same time, has a problem in that the UE may not confirm the synchronization codes due to an increase in inter-signal interference. As a result, the UE may not acquire a primary scrambling code (PSC). A method of transmitting a forward synchronization signal in a wireless communication system includes: each base station existing in a wireless communication system generating a frame according to a predetermined unit of frame timing by using a same external clock signal; and allocating different offsets to frames of adjacent base stations by using the external clock signal so that forward link common channels included in the frames do not overlap each other, and transmitting the frames. In addition, a method of allocating a cell code suitable for an OFDM cellular system, a forward link frame transmitting method, a method of setting timing between cells, and a method of setting timing between a base station and a mobile station can be derived.

    摘要翻译: 同时接收到两个以上同步码的用户设备(UE)的问题在于,由于信号间干扰的增加,UE可能无法确认同步码。 结果,UE可能不获取主扰码(PSC)。 一种在无线通信系统中发送正向同步信号的方法包括:存在于无线通信系统中的每个基站通过使用相同的外部时钟信号根据帧定时的预定单位生成帧; 并且通过使用外部时钟信号为相邻基站的帧分配不同的偏移量,使得包括在帧中的前向链路公共信道彼此不重叠,并且发送帧。 此外,可以推导出分配适合于OFDM蜂窝系统的小区代码的方法,前向链路帧发送方法,小区之间的时间设置方法以及基站和移动站之间的定时设定方法。

    Symbol timing synchronization obtaining method and apparatus robust to frequency offset in cell search of wireless communication system
    24.
    发明授权
    Symbol timing synchronization obtaining method and apparatus robust to frequency offset in cell search of wireless communication system 有权
    符号定时同步获取方法和设备对于无线通信系统的小区搜索中的频率偏移具有鲁棒性

    公开(公告)号:US08774122B2

    公开(公告)日:2014-07-08

    申请号:US12991517

    申请日:2009-05-08

    IPC分类号: H04W4/00 H04L27/26

    摘要: Disclosed is a symbol synchronization obtaining apparatus robust to a frequency offset in a cell search of a wireless communication system. The symbol synchronization obtaining apparatus robust to a frequency offset in a cell search of a wireless communication system may include a sequence generator to generate a base sequence for obtaining the symbol synchronization, a synchronization pattern generator to generate a modified sequence based on the base sequence, and to generate a synchronization pattern by combining the modified sequence and the base sequence, a frequency mapping unit to perform mapping of transmission information to a time area and a frequency area, based on the synchronization pattern, for generating a transmission frame, and a transmitting unit to transmit the transmission frame.

    摘要翻译: 公开了一种对无线通信系统的小区搜索中的频率偏移鲁棒的符号同步获取装置。 对无线通信系统的小区搜索中的频偏进行鲁棒的符号同步获取装置可以包括生成用于获得符号同步的基本序列的序列发生器,基于该基本序列生成修改序列的同步模式发生器, 并且通过组合修改的序列和基本序列来生成同步模式,频率映射单元,用于基于所述同步模式来执行传输信息到时间区域和频率区域的映射,用于生成传输帧,以及传输 单元传输传输帧。

    Cell search method, forward link frame transmission method, apparatus using the same and forward link frame structure
    28.
    发明授权
    Cell search method, forward link frame transmission method, apparatus using the same and forward link frame structure 有权
    小区搜索方法,前向链路帧传输方法,使用相同和前向链路帧结构的装置

    公开(公告)号:US07969964B2

    公开(公告)日:2011-06-28

    申请号:US12162237

    申请日:2007-07-25

    IPC分类号: H04J3/06

    摘要: In a cellular system in which OFDM is used, a forward link synchronization channel, a common pilot channel structure, an initial cell searching method of a mobile station, and an adjacent cell searching method for handover are required.A method of transmitting a forward synchronization signal in a wireless communication system according to the present invention includes generating a frame comprised of a plurality of sync blocks; and transmitting the frame through a forward link, wherein the frame comprises primary synchronization channel sequences which provide timing information of the sync blocks and a plurality of secondary synchronization channel sequences which provide timing information of the frame, wherein a cell identifier is specified by a combination of the primary synchronization channel sequence and a hopping code word specified by the plurality of the secondary synchronization channel sequences. Therefore, the cell searching time can be efficiently reduced in an OFDM system.

    摘要翻译: 在使用OFDM的蜂窝系统中,需要前向链路同步信道,公共导频信道结构,移动台的初始小区搜索方法以及切换用的相邻小区搜索方法。 根据本发明的在无线通信系统中发送正向同步信号的方法包括:生成由多个同步块组成的帧; 并且通过前向链路发送所述帧,其中所述帧包括提供所述同步块的定时信息的主同步信道序列和提供所述帧的定时信息的多个次同步信道序列,其中小区标识符由组合 的主同步信道序列和由多个次同步信道序列指定的跳频码字。 因此,可以在OFDM系统中有效地减少小区搜索时间。

    Image display device displaying multi-primary color and method of driving the same
    30.
    发明授权
    Image display device displaying multi-primary color and method of driving the same 有权
    显示多原色的图像显示装置及其驱动方法

    公开(公告)号:US09030483B2

    公开(公告)日:2015-05-12

    申请号:US13303993

    申请日:2011-11-23

    IPC分类号: G09G5/02

    摘要: An image display device includes: a display panel including a plurality of pixels and displaying an image; a color converting portion generating a converted image signal regarding red, green and blue colors and an auxiliary primary color from an original image signal regarding red, green and blue colors using one of a plurality of gains corresponding to the plurality of pixels, respectively; and a data signal generating portion generating a data signal from the converted image signal and supplying the data signal to the display panel.

    摘要翻译: 图像显示装置包括:显示面板,包括多个像素并显示图像; 颜色转换部分分别使用与多个像素对应的多个增益中的一个增益,从关于红色,绿色和蓝色的原始图像信号生成关于红色,绿色和蓝色的转换图像信号和辅助原色; 以及数据信号产生部分,从转换的图像信号产生数据信号,并将数据信号提供给显示面板。