会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 55. 发明申请
    • Method and system of orthogonalizing signal transmitted from BS applied to OFDM access
    • 将从BS发送的信号正交化的方法和系统应用于OFDM接入
    • US20070258529A1
    • 2007-11-08
    • US11789673
    • 2007-04-25
    • Zongchuang LiangDong-Seek ParkChang-Yoon OhYoung-Kwon ChoSung-Kwon Hong
    • Zongchuang LiangDong-Seek ParkChang-Yoon OhYoung-Kwon ChoSung-Kwon Hong
    • H04L27/28
    • H04L5/023H04L27/2602H04L27/2626H04L27/2647
    • A method of orthogonalizing signals transmitted from a BS in an OFDMA system, at a transmitting end, includes a) performing encoding, interleaving and modulation on original information bits; b) allocating sub-carriers with equivalent intervals to a sub-channel, and dividing channels into two parts of a cell edge user channel and a center area channel; c) mapping modulated information symbols to the corresponding sub-carriers; d) performing orthogonalizing processing on the two parts of channels; e) for a user at an edge of the cell, according to result of step b), dividing an OFDM symbol into subsections of equal length; f) multiplying the subsections obtained from step e) by a corresponding orthogonalizing sequence of the cell; g) adding the OFDM symbols of the two parts together to form a whole OFDM symbol; h) adding a cyclic prefix for the system; and i) performing D/A conversion, RF processing and feedback over a transmitting antenna on a base-band signal.
    • 一种在发送端正交化从OFDMA系统发送的信号的方法包括:a)对原始信息比特执行编码,交织和调制; b)向子信道分配具有等效间隔的子载波,并将信道划分为小区边缘用户信道和中心区域信道的两部分; c)将调制信息符号映射到相应的子载波; d)对信道的两部分执行正交化处理; e)根据步骤b)的结果,针对小区边缘的用户,将OFDM符号划分成等长的子段; f)将从步骤e)获得的子段乘以单元的对应正交化序列; g)将两个部分的OFDM符号相加在一起以形成整个OFDM符号; h)为系统添加循环前缀; 以及i)在基带信号上通过发送天线执行D / A转换,RF处理和反馈。
    • 58. 发明授权
    • Apparatus and method for transmitting and receiving control information message in a communication system
    • 在通信系统中发送和接收控制信息消息的装置和方法
    • US08750101B2
    • 2014-06-10
    • US12358636
    • 2009-01-23
    • Chang-Yoon OhGeun-Hwi LimWon-Il Roh
    • Chang-Yoon OhGeun-Hwi LimWon-Il Roh
    • G01R31/08H04L1/00
    • H04W48/12H04W72/042H04W88/08
    • An apparatus and method for operating a base station and a mobile station in a communication system are provided. The operation of the base station includes persistently allocating resources to at least one mobile station and transmitting, in a current frame, a control information message including a change counter flag indicating whether persistent resource allocation information, transmitted in a previous frame, is changed. An operation of the mobile station includes receiving a control information message, including a change counter flag indicating whether persistent resource allocation information included in a control information message transmitted in a previous frame is changed, from a base station in a current frame and checking a value of the change counter flag.
    • 提供了一种在通信系统中操作基站和移动台的装置和方法。 基站的操作包括向至少一个移动站持续分配资源,并且在当前帧中发送包括指示是否改变在先前帧中发送的持久资源分配信息的改变计数器标志的控制信息消息。 移动站的操作包括接收控制信息消息,该控制信息消息包括指示包括在先前帧中发送的控制信息消息中的持续资源分配信息是否改变的改变计数器标志,从当前帧中的基站检测值 的更改计数器标志。