Invention Grant
US09031158B2 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
- Patent Title: Transmit diversity architecture with optimized power consumption and area for UMTS and LTE systems
- Patent Title (中): 发射分集体系结构，为UMTS和LTE系统提供优化的功耗和面积
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Application No.: US13646876Application Date: 2012-10-08
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Publication No.: US09031158B2Publication Date: 2015-05-12
- Inventor: Prasad Srinivasa Siva Gudem , Vijay K Chellappa , Jeremy Darren Dunworth , Chiewcharn Narathong
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Main IPC: H04L25/49
- IPC: H04L25/49 ; H04B1/04 ; H04B7/02 ; H04B1/00 ; H04W52/02
Abstract:
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.
Public/Granted literature
- US20140098906A1 TRANSMIT DIVERSITY ARCHITECTURE WITH OPTIMIZED POWER CONSUMPTION AND AREA FOR UMTS & LTE SYSTEMS Public/Granted day:2014-04-10
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