DIVERSITY RECEIVER WITH SHARED LOCAL OSCILLATOR SIGNAL IN DIVERSITY MODE
    65.
    发明公开
    DIVERSITY RECEIVER WITH SHARED LOCAL OSCILLATOR SIGNAL IN DIVERSITY MODE 有权
    DIVERSITÄTSEMPFÄNGERMIT GEMEINSAM GENUTZTEM LOKALEM OSZILLATORSIGNAL IMDIVERSITÄTSMODUS

    公开(公告)号:EP2936691A1

    公开(公告)日:2015-10-28

    申请号:EP13821595.9

    申请日:2013-12-20

    Abstract: 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.

    Abstract translation: 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,具有被配置为对主信号进行下转换的主混合器;以及辅助混合器,被配置为在载波聚合模式中对二级信号进行下变频。 该装置还包括补充混频器,其在分集模式中使用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辅助信号进行下变频。

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