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    • 1. 发明申请
    • Method and Apparatus for Joint Detection in Downlink Tdd Cdma
    • 下行Tdd Cdma联合检测方法与装置
    • US20080247337A1
    • 2008-10-09
    • US10599185
    • 2005-03-04
    • Yueheng LiGang WuXuejun ZhangNi Ma
    • Yueheng LiGang WuXuejun ZhangNi Ma
    • H04J3/00
    • H04B1/7105H04B1/7083
    • A method and apparatus for implementing downlink JD (Joint Detection) in TDD CDMA communication systems, wherein the steps to be executed in the UE comprises: receiving downlink signals from a network system in a specific timeslot; acquiring the active primary and secondary channelisation codes in the specific timeslot, through processing the downlink signal; acquiring the initial ACC (Active Channelisation Codes) information for use in implementing JD in the next frame, through implementing a JD algorithm on the downlink signal by using the primary and secondary channelisation codes. An ACC dedicated channel is sent on the FPACH, carrying information relative to the use of secondary channelisation codes.
    • 一种用于在TDD CDMA通信系统中实现下行链路JD(Joint Detection)的方法和装置,其中在UE中执行的步骤包括:在特定时隙中从网络系统接收下行链路信号; 通过处理下行链路信号来获取特定时隙中的主要主要和次要信道化码; 通过使用主要和次要信道化代码,通过在下行链路信号上实现JD算法来获取用于在下一帧中实现JD的初始ACC(主动信道化码)信息。 在FPACH上发送ACC专用信道,携带相对于使用辅助信道化码的信息。
    • 2. 发明申请
    • Adaptive Mimo Wireless Communicationsi System
    • 自适应Mimo无线通信系统
    • US20070223367A1
    • 2007-09-27
    • US11568276
    • 2005-04-25
    • Gang WuYueheng LiYonggang Du
    • Gang WuYueheng LiYonggang Du
    • H04L1/06
    • H04L1/0675H04L1/0001H04L1/0625H04L1/065H04L1/0656
    • A GMIMO-JD (Generalized Multiple Input Multiple Output—Joint Detection) method to be executed by a receiver for use in MIMO (Multiple Input Multiple Output) wireless communication systems, comprising: receiving the radio signal sent form a transmitter; estimating the propagation channel quality of the radio signal; sending a feedback information to the transmitter according to the estimation result such that the transmitter can choose and reconfigure a GMIMO architecture suitable for the propagation channel according to the feedback information; reconfiguring a GJD architecture suitable for the receiver according to the estimation result; processing the received radio signal from the transmitter by exploiting the chosen GJD architecture.
    • 一种由用于MIMO(多输入多输出)无线通信系统的接收机执行的GMIMO-JD(广义多输入多输出 - 联合检测)方法,包括:接收从发射机发送的无线电信号; 估计无线电信号的传播信道质量; 根据估计结果向发射机发送反馈信息,使得发射机可以根据反馈信息选择和重新配置适合于传播信道的GMIMO架构; 根据估计结果重新配置适合接收机的GJD架构; 通过利用所选择的GJD架构处理来自发射机的接收的无线电信号。
    • 3. 发明授权
    • Method and apparatus for supporting downlink joint detection in TDD CDMA systems
    • 用于支持TDD CDMA系统中的下行链路联合检测的方法和装置
    • US08204024B2
    • 2012-06-19
    • US10580722
    • 2004-11-04
    • Yueheng LiLi SunGang Wu
    • Yueheng LiLi SunGang Wu
    • H04B7/216
    • H04B1/7105H04B2201/709709
    • A method is proposed for supporting downlink JD (joint detection) in a TDD CDMA communication network system, comprising steps of: judging whether the CAI (code allocation information) in a downlink timeslot will change in the next TTI (transmission time interval); if the CAI will change, inserting the changed CAI as a specific control information into a specified field in the traffic burst in the downlink timeslot corresponding to current TTI; sending the traffic burst containing the specific control information to each UE (user equipment) in the downlink timeslot via a downlink channel.
    • 提出了一种支持TDD CDMA通信网络系统中的下行链路JD(联合检测)的方法,包括以下步骤:判断下行时隙中的CAI(码分配信息)是否在下一个TTI(传输时间间隔)内发生变化; 如果CAI将改变,则将改变的CAI作为特定控制信息插入到对应于当前TTI的下行链路时隙中的业务突发中的指定字段中; 经由下行链路信道向下行链路时隙中的每个UE(用户设备)发送包含特定控制信息的业务突发。
    • 6. 发明申请
    • Convolutional Encoder and the Encoing Method Thereof
    • 卷积编码器及其包络方法
    • US20080250302A1
    • 2008-10-09
    • US10599186
    • 2005-03-07
    • Gang WuYueheng Li
    • Gang WuYueheng Li
    • H03M13/23
    • H04L1/006H04L1/0054H04L1/0071
    • A convolutional encoder and the encoding method thereof, wherein the encoding method includes steps of: generating convolutional code according to the predefined criteria and with reference to the encoder's predefined convolutional encoding rate and constraint length; processing the data to be transmitted by using the convolutional code so that the coded data are suitable for propagation in multipath fading channel with Rayleigh fading, wherein the predefined criteria is to maximize the sum of Euclidean distance between each branch along the shortest error event path and each corresponding branch along the correct decoding path, and the shortest error event path is the decoding path having the minimum branches of non-zero Euclidean distance compared with the correct decoding path.
    • 一种卷积编码器及其编码方法,其中编码方法包括以下步骤:根据预定准则生成卷积码并参照编码器的预定卷积编码速率和约束长度; 通过使用卷积码处理要发送的数据,使得编码数据适合于在具有瑞利衰落的多路径衰落信道中传播,其中预定标准是使沿着最短错误事件路径的每个分支之间的欧几里德距离之和最大化, 每个对应的分支沿着正确的解码路径,并且最短的错误事件路径是与正确解码路径相比具有非零欧几里德距离的最小分支的解码路径。
    • 10. 发明授权
    • Method of and apparatus for space-time-frequency coding
    • 时空编码方法及装置
    • US08422580B2
    • 2013-04-16
    • US12303749
    • 2007-05-30
    • Gang WuQi ZhouNi MaXiaobo Zhang
    • Gang WuQi ZhouNi MaXiaobo Zhang
    • H04B7/02H04L27/00H03C7/02
    • H04L1/0662H04L1/0606H04L27/2601
    • A space-time-frequency encoding scheme, for use in wireless communication systems, transforms a plurality of input element pairs into a plurality orthogonal element pairs, each of the plurality of input element pairs and corresponding orthogonal element pairs forming an orthogonal matrix. A first element, second element and a duplicate of the second element in each of the plurality of input element pairs and corresponding orthogonal element pairs are mapped as channel elements to three predetermined time-frequency cells in respective first and second two-dimension time-frequency matrixes for transmission via different antennas. As the input element pairs and corresponding orthogonal element pairs, transmitted via different antennas, are orthogonal in both the space-time domain and the space-frequency domain at the same time, two-dimension space-time transmit diversity gain and space-frequency transmit diversity gain can be achieved at the same time.
    • 用于无线通信系统的时空编码方案将多个输入元件对变换成多个正交元件对,多个输入元件对中的每一个以及形成正交矩阵的对应正交元件对。 多个输入元件对和对应的正交元素对中的每一个中的第二元素的第一元素,第二元素和副本被映射为在相应的第一和第二二维时间频率中的三个预定时间单元的信道元素 用于通过不同天线传输的矩阵。 由于通过不同天线发送的输入元件对和对应的正交元件对同时在时空域和空间域两者都是正交的,二维时空发射分集增益和空频发射 可以同时实现分集增益。