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    DIVERSITY RECEIVER WITH SHARED LOCAL OSCILLATOR SIGNAL IN DIVERSITY MODE
    1.
    发明申请
    DIVERSITY RECEIVER WITH SHARED LOCAL OSCILLATOR SIGNAL IN DIVERSITY MODE 有权
    多样性接收器，具有多种局部振荡信号

    公开(公告)号：US20140179253A1

    公开(公告)日：2014-06-26

    申请号：US13725228

    申请日：2012-12-21

    申请人： QUALCOMM INCORPORATED

    发明人： Prasad Srinivasa Siva Gudem ,  Li Liu ,  Frederic Bossu

    IPC分类号： H03D7/14

    CPC分类号： H03D7/1466 ,  H04B1/005 ,  H04B1/0064 ,  H04B7/0871 ,  Y02D70/40 ,  Y02D70/444

    摘要： A multi-mode receiver is disclosed that is reconfigurable to share a local oscillator signal in diversity mode to save power consumption. In an exemplary embodiment, an apparatus includes a primary receiver having a primary mixer configured to down-convert a primary signal and a secondary mixer configured to down-convert a secondary signal in carrier aggregation mode. The apparatus also includes a supplemental mixer that uses a shared primary local oscillator (LO) signal generated by a shared primary frequency synthesizer in diversity mode to reduce power consumption. The apparatus further includes a controller configured to disable the secondary mixer and to enable the supplemental mixer to down-convert the secondary signal when operating in the diversity mode.

    摘要翻译： 公开了一种多模式接收机，其可重构以在分集模式下共享本地振荡器信号以节省功耗。 在一个示例性实施例中，一种装置包括主接收机，其具有被配置为对主信号进行下变频的主混合器和被配置为在载波聚合模式中对二级信号进行下变频的二级混合器。 该装置还包括补充混频器，其使用由分集模式中由共享主频率合成器产生的共享主本地振荡器（LO）信号以减少功耗。 该装置还包括控制器，其被配置为在分集模式下操作时禁用辅助混合器并且使辅助混频器能够对次级信号进行下变频。

    Transmit diversity architecture with optimized power consumption and area for UMTS and LTE systems
    6.
    发明授权
    Transmit diversity architecture with optimized power consumption and area for UMTS and LTE systems 有权
    发射分集体系结构，为UMTS和LTE系统提供优化的功耗和面积

    公开(公告)号：US09031158B2

    公开(公告)日：2015-05-12

    申请号：US13646876

    申请日：2012-10-08

    申请人： QUALCOMM Incorporated

    发明人： Prasad Srinivasa Siva Gudem ,  Vijay K Chellappa ,  Jeremy Darren Dunworth ,  Chiewcharn Narathong

    IPC分类号： H04L25/49 ,  H04B1/04 ,  H04B7/02 ,  H04B1/00 ,  H04W52/02

    CPC分类号： H04B1/0483 ,  H04B1/005 ,  H04B1/406 ,  H04B7/02 ,  H04W52/0209 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/40

    摘要： A method and apparatus for providing total power from one transmit path. The method provides the steps of: selecting a transmit path and closing a first switch, located after a digital to analog converter. A second switch between the two transmit paths is then closed in order to provide for the use of at least one low-pass filter in each transmit path. The signal is then processed through the at least one low pass filter in each transmit path. The signal is then processed through at least one mixer in each transmit path. After the mixer, the signal is then processed through at least one driver amplifier in each transmit path, and one-half of the total power is allocated to each of two transmission paths. A third switch is then closed after the at least one power amplifier in each transmit path to force the half-power from one transmit path into one output.

    摘要翻译： 一种用于从一个发送路径提供总功率的方法和装置。 该方法提供了以下步骤：选择发送路径并关闭位于数模转换器之后的第一开关。 然后关闭两个发送路径之间的第二个开关，以便在每个发送路径中提供使用至少一个低通滤波器。 然后通过每个发射路径中的至少一个低通滤波器处理该信号。 然后通过每个发送路径中的至少一个混频器处理信号。 在混频器之后，然后通过每个发送路径中的至少一个驱动器放大器处理信号，并且将总功率的一半分配给两个传输路径中的每一个。 然后在每个发射路径中的至少一个功率放大器之后关闭第三开关，以将来自一个发射路径的半功率强制为一个输出。

    RECEIVER THAT RECONFIGURES BETWEEN ZERO INTERMEDIATE FREQUENCY AND DIRECT SAMPLING BASED ON CHANNEL CONDITIONS
    8.
    发明申请
    RECEIVER THAT RECONFIGURES BETWEEN ZERO INTERMEDIATE FREQUENCY AND DIRECT SAMPLING BASED ON CHANNEL CONDITIONS 有权
    接收器采用基于通道条件的零间隔频率和直接采样之间的重构

    公开(公告)号：US20140220920A1

    公开(公告)日：2014-08-07

    申请号：US13758846

    申请日：2013-02-04

    申请人： QUALCOMM INCORPORATED

    发明人： Udara C. Fernando ,  Prasad Srinivasa Siva Gudem

    IPC分类号： H04W52/02

    CPC分类号： H04W52/0245 ,  H04B1/0007 ,  H04B1/0021 ,  H04B1/0025 ,  H04B1/0028 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/40

    摘要： A wireless device for receiving wireless signals based on channel conditions is described. The wireless device includes a direct sampling path used when operating in a direct sampling mode. The wireless device also includes a zero intermediate frequency path used when operating in a normal sampling mode. The wireless device further includes a first switch coupling a filter module input to an input of the direct sampling path and an input of the zero intermediate frequency path. The wireless device also includes a second coupling a filter module output to an output of the direct sampling path and an output of the zero intermediate frequency path. The first switch and the second switch are configured to switch between the direct sampling path and the zero intermediate frequency path based on a received signal power.

    摘要翻译： 描述了一种基于信道条件接收无线信号的无线设备。 无线设备包括当以直接采样模式操作时使用的直接采样路径。 无线设备还包括在正常采样模式下工作时使用的零中频路径。 无线设备还包括将滤波器模块输入耦合到直接采样路径的输入和零中频路径的输入的第一开关。 无线设备还包括第二耦合滤波器模块输出到直接采样路径的输出和零中频路径的输出。 第一开关和第二开关被配置为基于接收信号功率在直接采样路径和零中间路径之间切换。

    TRANSMIT DIVERSITY ARCHITECTURE WITH OPTIMIZED POWER CONSUMPTION AND AREA FOR UMTS & LTE SYSTEMS
    9.
    发明申请
    TRANSMIT DIVERSITY ARCHITECTURE WITH OPTIMIZED POWER CONSUMPTION AND AREA FOR UMTS & LTE SYSTEMS 有权
    用于UMTS和LTE系统的具有优化功耗和区域的发射多样性架构

    公开(公告)号：US20140098906A1

    公开(公告)日：2014-04-10

    申请号：US13646876

    申请日：2012-10-08

    申请人： QUALCOMM INCORPORATED

    发明人： Prasad Srinivasa Siva Gudem ,  Vijay K Chellappa ,  Jeremy Darren Dunworth ,  Chiewcharn Narathong

    IPC分类号： H04L25/49

    CPC分类号： H04B1/0483 ,  H04B1/005 ,  H04B1/406 ,  H04B7/02 ,  H04W52/0209 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/40

    摘要： A method and apparatus for providing total power from one transmit path. The method provides the steps of: selecting a transmit path and closing a first switch, located after a digital to analog converter. A second switch between the two transmit paths is then closed in order to provide for the use of at least one low-pass filter in each transmit path. The signal is then processed through the at least one low pass filter in each transmit path. The signal is then processed through at least one mixer in each transmit path. After the mixer, the signal is then processed through at least one driver amplifier in each transmit path, and one-half of the total power is allocated to each of two transmission paths. A third switch is then closed after the at least one power amplifier in each transmit path to force the half-power from one transmit path into one output.

    摘要翻译： 一种用于从一个发送路径提供总功率的方法和装置。 该方法提供了以下步骤：选择发送路径并关闭位于数模转换器之后的第一开关。 然后关闭两个发送路径之间的第二个开关，以便在每个发送路径中提供使用至少一个低通滤波器。 然后通过每个发射路径中的至少一个低通滤波器处理该信号。 然后通过每个发送路径中的至少一个混频器处理信号。 在混频器之后，然后通过每个发送路径中的至少一个驱动器放大器处理信号，并且将总功率的一半分配给两个传输路径中的每一个。 然后在每个发射路径中的至少一个功率放大器之后关闭第三开关，以将来自一个发射路径的半功率强制为一个输出。

    TUNABLE NOTCH FILTER USING FEEDBACK THROUGH AN EXISTING FEEDBACK RECEIVER
    10.
    发明申请
    TUNABLE NOTCH FILTER USING FEEDBACK THROUGH AN EXISTING FEEDBACK RECEIVER 审中-公开
    使用现在的反馈接收器使用反馈的TUNABLE NOTCH过滤器

    公开(公告)号：US20130259099A1

    公开(公告)日：2013-10-03

    申请号：US13692854

    申请日：2012-12-03

    申请人： QUALCOMM INCORPORATED

    发明人： Prasad Srinivasa Siva Gudem ,  Ojas M Choksi ,  Wei Zhuo

    IPC分类号： H04B1/44

    CPC分类号： H04B1/44 ,  H04B1/1036 ,  H04B1/3805 ,  H04B1/525 ,  H04B17/24 ,  H04B17/354

    摘要： A wireless communication device configured for reducing Tx leakage in a receive signal is described. The wireless communication device includes a transceiver chip. The transceiver chip includes a receiver, a feedback receiver and a transmitter. The wireless communication device also includes a Tx leakage signal reduction module. The Tx leakage signal reduction module reuses the feedback receiver.

    摘要翻译： 描述了配置用于减少接收信号中的Tx泄漏的无线通信设备。 无线通信设备包括收发器芯片。 收发器芯片包括接收器，反馈接收器和发射器。 无线通信设备还包括Tx泄漏信号降低模块。 Tx泄漏信号降低模块重新使用反馈接收器。