Invention Grant
US09160386B2 Non-linear interference cancellation across aggressor transmitters and victim receivers
有权
攻击者发射机和受害者接收机之间的非线性干扰消除
- Patent Title: Non-linear interference cancellation across aggressor transmitters and victim receivers
- Patent Title (中): 攻击者发射机和受害者接收机之间的非线性干扰消除
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Application No.: US13857941Application Date: 2013-04-05
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Publication No.: US09160386B2Publication Date: 2015-10-13
- Inventor: Roberto Rimini , Jibing Wang , Geert Arnout Awater
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: DeLizio Law, PLLC
- Main IPC: H03D1/04
- IPC: H03D1/04 ; H04B1/12

Abstract:
Systems and methods are disclosed to implement non-linear interference cancellation (NLIC) across chips or dies in communication systems to cancel or mitigate self-jamming interference. A victim transceiver may receive an analog baseband transmit (Tx) signal from an aggressor transceiver. The analog baseband Tx signal may be tapped from a digital analog converter (DAC) of the aggressor transceiver. Alternatively, the analog baseband Tx signal may be generated by the aggressor transceiver using an auxiliary down-conversion and filtering stage. The victim transceiver may receive a composite baseband Rx signal from the victim transceiver front-end. The composite baseband Rx signal includes the desired Rx signal and an interference signal. The victim transceiver may sample the analog baseband Tx signal to generate a digital signal replica of the analog baseband Tx signal for the NLIC operation to cancel or mitigate the interference signal present in the composite baseband Rx signal.
Public/Granted literature
- US20140301498A1 Non-linear Interference Cancellation Across Aggressor Transmitters and Victim Receivers Public/Granted day:2014-10-09
Information query
IPC分类: