Invention Grant
- Patent Title: Detecting and avoiding intermodulation interference
- Patent Title (中): 检测和避免互调干扰
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Application No.: US14171825Application Date: 2014-02-04
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Publication No.: US09473256B2Publication Date: 2016-10-18
- Inventor: Hassan Kaywan Afkhami , Purva Rameshchandra Rajkotia
- 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: H04B3/54
- IPC: H04B3/54 ; H04B17/16 ; H04B17/17 ; H04B17/19

Abstract:
A first device and a second device may coordinate to determine a power level or frequency in a first frequency band that is associated with causing intermodulation (IM) interference at a second frequency band (e.g., a protected frequency band). An IM interference detection test may include at least a first test signal transmitted from the first device to the second device via a communications medium. The second device may detect for the presence of IM interference associated with the first test signal. A series of test signals may be used to identify power levels and/or frequencies that cause IM interference in the second frequency band. A transmitting device may improve performance by increasing power for particular frequencies up to a power level that maintains IM interference below a threshold level.
Public/Granted literature
- US20150222371A1 DETECTING AND AVOIDING INTERMODULATION INTERFERENCE Public/Granted day:2015-08-06
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