Invention Grant
US09014648B2 Diversity receiver with shared local oscillator signal in diversity mode
有权
分集接收器,具有分集模式下的共享本地振荡器信号
- Patent Title: Diversity receiver with shared local oscillator signal in diversity mode
- Patent Title (中): 分集接收器,具有分集模式下的共享本地振荡器信号
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Application No.: US13725228Application Date: 2012-12-21
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Publication No.: US09014648B2Publication Date: 2015-04-21
- Inventor: Prasad Srinivasa Siva Gudem , Li Liu , Frederic Bossu
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kenyon S. Jenckes
- Main IPC: H04B17/02
- IPC: H04B17/02 ; H03D7/14 ; H04B1/00 ; H04B7/08

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.
Public/Granted literature
- US20140179253A1 DIVERSITY RECEIVER WITH SHARED LOCAL OSCILLATOR SIGNAL IN DIVERSITY MODE Public/Granted day:2014-06-26
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