Invention Grant
- Patent Title: Baseband transmitter self-jamming and intermodulation cancellation device
- Patent Title (中): 基带发射机自动干扰和互调消除装置
-
Application No.: US11346888Application Date: 2006-02-03
-
Publication No.: US08170487B2Publication Date: 2012-05-01
- Inventor: Gurkanwal S. Sahota , Christos Komninakis
- Applicant: Gurkanwal S. Sahota , Christos Komninakis
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM, Incorporated
- Current Assignee: QUALCOMM, Incorporated
- Current Assignee Address: US CA San Diego
- Agent Ramin Mobarhan
- Main IPC: H04B1/00
- IPC: H04B1/00

Abstract:
Some embodiments provide a method, system, and apparatus for interference cancellation at the baseband of a receiver. A wireless communication device, having a transmitter and receiver, is provided with an adaptive circuit that cancels interference caused by transmit signals (or other signals) leaked or bled onto the receiver at baseband to facilitate detection of a received signal of interest. Some implementations provide for a circuit that approximately reconstructs the second and third order components caused by the nonlinear response of the down-conversion chain of a receiver. This reconstructed signal is then subtracted from the composite received signal to obtain a received signal of interest.
Public/Granted literature
- US20070184782A1 Baseband transmitter self-jamming and intermodulation cancellation device Public/Granted day:2007-08-09
Information query