Method and detector for a novel channel quality indicator for space-time encoded MIMO spread spectrum systems in frequency selective channels
    3.
    发明申请
    Method and detector for a novel channel quality indicator for space-time encoded MIMO spread spectrum systems in frequency selective channels 失效
    用于频率选择信道中时空编码MIMO扩频系统的新型信道质量指示符的方法和检测器

    公开(公告)号:US20060013328A1

    公开(公告)日:2006-01-19

    申请号:US10892833

    申请日:2004-07-15

    IPC分类号: H04B7/02 H04L1/02 H04B1/707

    摘要: In a jointly encoded (JE), spread spectrum communication MIMO system where a demultiplexed packet is transmitted over multiple streams, two versions of a single channel quality indicator (CQI) is disclosed: generalized SNR or constrained mutual information CMI between the transmitted and received chip vectors. In the receiver, the CMI is constrained so that filtering is suboptimal. The filter bank is preferably LMMSE or MVDR filters that convert the multi-path channel into a single path channel so that joint sequence detection is unnecessary. Detection is instead by a per-Walsh code architecture, wherein a plurality of Walsh-code specific detectors in parallel detect bits or symbols from the single-channel chips after downconverting chip to symbols. Link to system mapping is realizable using the disclosed CQI for a JE MIMO system in that the CQI or related information is returned to the transmitter, which adapts coding rate and/or modulation for the channel as represented by the CQI.

    摘要翻译: 在通过多个流传输解复用的分组的扩频通信MIMO系统中,公开了单个信道质量指示符(CQI)的两个版本:发射和接收的芯片之间的广义SNR或受限互相信息CMI 向量 在接收机中,CMI被约束,使得过滤不是最佳的。 滤波器组优选地将多路径信道转换成单路径信道的LMMSE或MVDR滤波器,使得不需要联合序列检测。 检测是逐个沃尔什码代码架构,其中多个沃尔什码专用检测器在将芯片下变频到符号之后并行地检测来自单通道芯片的位或符号。 使用所公开的用于JE MIMO系统的CQI可实现与系统映射的链接,因为CQI或相关信息被返回给发射机,其适配由CQI表示的信道的编码率和/或调制。

    CONTROL AND DATA CHANNELS FOR ADVANCED RELAY OPERATION
    4.
    发明申请
    CONTROL AND DATA CHANNELS FOR ADVANCED RELAY OPERATION 有权
    高级继电器操作的控制和数据通道

    公开(公告)号:US20100281323A1

    公开(公告)日:2010-11-04

    申请号:US12732547

    申请日:2010-03-26

    IPC分类号: H04B3/36 H04L1/18 G06F11/14

    摘要: A relay station in a wireless communication system is configured to relay communications between the base station and a plurality of subscriber stations. The relay station includes at least one antenna configured to transmit and receive data and control information. The relay station also includes a controller coupled to the antenna. The controller is configured to transmit control information to a subscriber station during a first set of symbols in a relay station to subscriber station (RS-to-SS) subframe. The controller also switches the antenna to a receive mode; and receives control information during a second set of symbols in the RS-to-SS subframe.

    摘要翻译: 无线通信系统中的中继站被配置为中继基站与多个用户台之间的通信。 中继站包括至少一个配置成发送和接收数据和控制信息的天线。 中继站还包括耦合到天线的控制器。 控制器被配置为在中继站到订户站(RS到SS)子帧的第一组符号期间向用户台发送控制信息。 控制器还将天线切换到接收模式; 并且在RS到SS子帧中的第二组符号期间接收控制信息。

    Control and data channels for advanced relay operation
    5.
    发明授权
    Control and data channels for advanced relay operation 有权
    控制和数据通道,用于高级继电器操作

    公开(公告)号:US08929303B2

    公开(公告)日:2015-01-06

    申请号:US12732547

    申请日:2010-03-26

    摘要: A relay station in a wireless communication system is configured to relay communications between the base station and a plurality of subscriber stations. The relay station includes at least one antenna configured to transmit and receive data and control information. The relay station also includes a controller coupled to the antenna. The controller is configured to transmit control information to a subscriber station during a first set of symbols in a relay station to subscriber station (RS-to-SS) subframe. The controller also switches the antenna to a receive mode; and receives control information during a second set of symbols in the RS-to-SS subframe.

    摘要翻译: 无线通信系统中的中继站被配置为中继基站与多个用户台之间的通信。 中继站包括至少一个配置成发送和接收数据和控制信息的天线。 中继站还包括耦合到天线的控制器。 控制器被配置为在中继站到订户站(RS到SS)子帧的第一组符号期间向用户台发送控制信息。 控制器还将天线切换到接收模式; 并且在RS到SS子帧中的第二组符号期间接收控制信息。

    Method and detector for a novel channel quality indicator for space-time encoded MIMO spread spectrum systems in frequency selective channels
    6.
    发明授权
    Method and detector for a novel channel quality indicator for space-time encoded MIMO spread spectrum systems in frequency selective channels 失效
    用于频率选择信道中时空编码MIMO扩频系统的新型信道质量指示符的方法和检测器

    公开(公告)号:US07606319B2

    公开(公告)日:2009-10-20

    申请号:US10892833

    申请日:2004-07-15

    IPC分类号: H04B7/02

    摘要: In a JE, spread spectrum communication MIMO system where a demultiplexed packet is transmitted over multiple streams, two versions of a single CQI are disclosed: generalized SNR or constrained mutual information CMI between the transmitted and received chip vectors. In the receiver, the CMI is constrained so that filtering is suboptimal. The filter bank is preferably LMMSE or MVDR filters that convert the multi-path channel into a single path channel so that joint sequence detection is unnecessary. Detection is by a per-Walsh code architecture, wherein a plurality of Walsh-code specific detectors in parallel detect bits or symbols from the single-channel chips after downconverting chip to symbols. Link to system mapping is realizable using the disclosed CQI for a JE MIMO system in that the CQI or related information is returned to the transmitter, which adapts coding rate and/or modulation for the channel as represented by the CQI.

    摘要翻译: 在扩频通信MIMO系统中,通过多个流传输解复用分组的扩频通信MIMO系统,公开了单个CQI的两个版本:发送和接收的码片向量之间的广义SNR或受限互相信息CMI。 在接收机中,CMI被约束,使得过滤不是最佳的。 滤波器组优选地将多路径信道转换成单路径信道的LMMSE或MVDR滤波器,使得不需要联合序列检测。 检测是通过沃尔什码结构进行的,其中多个沃尔什码专用检测器在将芯片下变频到符号之后并行地检测来自单通道芯片的位或符号。 使用所公开的用于JE MIMO系统的CQI可实现与系统映射的链接,因为CQI或相关信息被返回给发射机,其适配由CQI表示的信道的编码率和/或调制。

    Method and apparatus for estimating transmit weights for multiple antennas
    7.
    发明申请
    Method and apparatus for estimating transmit weights for multiple antennas 审中-公开
    用于估计多个天线的发射权重的方法和装置

    公开(公告)号:US20060146953A1

    公开(公告)日:2006-07-06

    申请号:US11075233

    申请日:2005-03-08

    IPC分类号: H04B7/02

    CPC分类号: H04B7/0413 H04B7/0854

    摘要: An approach for determining antenna weights in a multiple antenna communication system is provided. The approach jointly optimizes the transmitter weights and the receiver filter. A filter of a receiver (e.g., Linear Minimum Mean Square Error (LMMSE)) is optimized using initial weight values of the transmit antennas. The cost function, which is a mean-squared of a difference between a transmitted signal and an estimated signal, is then modified according to the optimized receiver filter. A transmit filter is then optimized according to the modified cost function. The above approach advantageously can obtain antenna weights when the condition of separability of paths does not exist.

    摘要翻译: 提供了一种用于确定多天线通信系统中的天线权重的方法。 该方法联合优化发射机权重和接收机滤波器。 使用发射天线的初始权重值来优化接收机的滤波器(例如,线性最小均方误差(LMMSE))。 然后根据优化的接收机滤波器修改作为发送信号和估计信号之间的差的均方的成本函数。 然后根据修改的成本函数优化发送过滤器。 当不存在路径的可分离性条件时,上述方法有利地可以获得天线权重。

    Decoration light
    9.
    外观设计

    公开(公告)号:USD985153S1

    公开(公告)日:2023-05-02

    申请号:US29770167

    申请日:2021-02-10

    申请人: Yan Wang

    设计人: Yan Wang

    Method for correcting interference of multicolor fluorescence channels

    公开(公告)号:US11579086B2

    公开(公告)日:2023-02-14

    申请号:US17496262

    申请日:2021-10-07

    IPC分类号: C12Q1/686 G01N21/64 B01L9/00

    摘要: Provided is a fluorescence reader that uses two excitation channels and can read up to seven different fluorescent dyes in a single run. Each excitation channel has one light source and one single excitation filter and one dichroic mirror. One excitation channel is capable of exciting multiple fluorescent dyes and can be used to distinguish multiple dyes in combination with multiple emission filters. The excitation channels are driven by a motor that can automatically switch the two excitation channels for taking images of up to seven different fluorescent dyes. An algorithm to calibrate the crosstalk between different fluorescent dyes is also provided. Also provided is a method for analyzing digital PCR data using a ratio of two fluorescence emission readings.