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Method and apparatus for providing jammer detection in a receiver

A technology for receivers and detectors, used in transmission systems, electrical components, etc., to solve problems such as low gain, high noise figure, and can not provide the best sensitivity and SNR

Inactive Publication Date: 2014-06-11
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, highly linear receivers (i.e., LNAs) have high noise figure and low gain, and thus do not provide optimal sensitivity and SNR in the presence of weak or no interference

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  • Method and apparatus for providing jammer detection in a receiver
  • Method and apparatus for providing jammer detection in a receiver
  • Method and apparatus for providing jammer detection in a receiver

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Embodiment Construction

[0039] The detailed description, set forth below in conjunction with the accompanying drawings, is intended as a description of various aspects of the invention and is not intended to represent the only aspects in which the invention may be practiced. Each aspect described in the present invention is provided merely as an example or illustration of the invention, and should not necessarily be construed as preferred or advantageous over other aspects. The detailed description includes specific details for the purpose of providing a thorough understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form in order not to obscure the concepts of the invention. Abbreviations and other descriptive terminology may be used only for convenience and clarity and are not intended to limit the sc...

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Abstract

A method and apparatus for detecting a jammer comprising sampling an input signal; downconverting and sampling the input signal to generate a sampled downconverted (SD) input signal; comparing the sampled input signal to a wideband threshold THWB, and comparing the SD input signal to a narrowband threshold THNB; generating a wideband (WB) interrupt signal based on the comparison to the THWB, and generating a narrowband (NB) interrupt signal based on the comparison to the THNB; and generating a composite interrupt signal based on at least one of WB interrupt signal and NB interrupt signal. In one aspect, the apparatus comprises a wideband jammer detector for generating a WB interrupt signal to indicate a wideband jammer; a narrowband jammer detector for generating a NB interrupt signal to indicate a narrowband jammer; and interrupt logic for generating a composite interrupt signal based on one of WB interrupt signal and NB interrupt signal.

Description

[0001] Claim of priority under 35 U.S.C. §119 [0002] This patent application claims Provisional Application No. 61 / 085,325, filed July 31, 2008, entitled "Method and Apparatus for Providing Jammer Detection In A Receiver" and said provisional application is assigned to the present assignee and is hereby expressly incorporated herein by reference. technical field [0003] The present invention generally relates to devices and methods for communication receivers. More particularly, the present invention relates to jammer detector architectures. Background technique [0004] In conventional communication receivers, there are two conflicting requirements: high sensitivity and high linearity. High sensitivity refers to the receiver characteristic of low noise figure with high gain, making the receiver sensitive to weak signals. A low noise figure LNA provides better sensitivity to the receiver and provides good SNR for weak signals. However, a low noise figure LNA with hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/10
CPCH04B1/109H04B1/1027H03F2200/451H03F3/72H03F2203/7236H03F2200/294H03G1/0088H03G3/3052H04B1/10H04B1/16
Inventor 海姆·M·魏斯曼阿维格多尔·布里兰特苏桑塔·森古普塔
Owner QUALCOMM INC