Invention Grant
- Patent Title: Own transmitter interference tolerant transceiver and receiving methods
- Patent Title (中): 自己的发射机干扰收发和收发方式
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Application No.: US12339726Application Date: 2008-12-19
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Publication No.: US07995973B2Publication Date: 2011-08-09
- Inventor: Paul Wilkinson Dent , Sven Mattisson
- Applicant: Paul Wilkinson Dent , Sven Mattisson
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- Agency: Coats & Bennett, P.L.L.C.
- Main IPC: H04B1/40
- IPC: H04B1/40

Abstract:
Circuits and methods are disclosed for reducing interference from transmitter leakage in a radio transceiver. An exemplary method for reducing interference from transmitter leakage in a radio transceiver comprises downconverting, filtering, and sampling a radio frequency signal comprising a desired signal and a transmitter leakage signal to obtain a sampled signal of interest. The method further comprises generating a sampled distortion signal estimate that estimates one or more distortion products of the transmitter leakage signal, such as a squared amplitude obtained from a square-law device or corresponding digital function. Further, the method comprises dividing the sampled distortion signal estimate and the sampled signal of interest into a plurality of frequency channels. Finally, for a selected number of frequency channels, the method comprises combining the sampled distortion signal estimate for a frequency channel with the corresponding sampled signal of interest for the same frequency channel to obtain interference-reduced signal samples for the frequency channel.
Public/Granted literature
- US20100159837A1 Own Transmitter Interference Tolerant Transceiver and Receiving Methods Public/Granted day:2010-06-24
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