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Adaptive bluetooth receiver and method

a bluetooth receiver and receiver technology, applied in the field ofsignal interference, can solve the problems of bluetooth receivers that may have incorrect dc offset estimation using access codes, bluetooth receivers may lose one frame, etc., to improve interference immunity, improve sensitivity, and improve the accuracy of dc offset estimation

Active Publication Date: 2014-11-13
BEKEN CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a method for improving the accuracy of estimating the DC offset of Bluetooth signals, making them less susceptible to interference and increasing their sensitivity. This is achieved by adapting the Bluetooth frame structure, which helps to better analyze and investigate the signals.

Problems solved by technology

Conventionally, Bluetooth receivers may have incorrect DC offset estimation using an access code as the access code does not have an evenly distributed binary code.
Further, a Bluetooth receiver may lose one frame if there is large interference, as the gain control has one frame delay after RSSI detection.

Method used

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  • Adaptive bluetooth receiver and method
  • Adaptive bluetooth receiver and method
  • Adaptive bluetooth receiver and method

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Embodiment Construction

[0016]Various aspects and examples of the invention will now be described. The following description provides specific details for a thorough understanding and enabling description of these examples. Those skilled in the art will understand, however, that the invention may be practiced without many of these details. Additionally, some well-know structures or functions may not be shown or described in detail, so as to avoid unnecessarily obscuring the relevant description.

[0017]The terminology used in the description presented below is intended to be interpreted in its broadest reasonable manner, even though it is being used in conjunction with a detailed description of certain specific examples of the invention. Certain terms may even be emphasized below, however, any terminology intended to be interpreted in any restricted manner will be overtly and specifically defined as such in this Detailed Description section.

[0018]FIG. 1 is a block diagram illustrating an example Bluetooth fr...

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PUM

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Abstract

A Bluetooth receiver comprises a RF front end configured to receive a Bluetooth signal including a preamble and 34-bit pseudo-number (PN); a DC estimator communicatively coupled to the RF front end; and a frame synchronizer communicatively coupled to the DC estimator. The DC estimator is configured to perform DC offset estimation by determining an average value of samples of the preamble and the frame synchronizer is configured to use the 34-bit PN for frame synchronization.

Description

CLAIM OF PRIORITY[0001]This application claims priority to Chinese Application number 201310170139.6 entitled “ ADAPTIVE BLUETOOTH RECEIVER AND METHOD”, filed on May 8, 2013, which is incorporated herein by reference.TECHNICAL FIELD[0002]The present application relates to signal interference and more particularly, but not exclusively, to utilizing a Bluetooth frame structure to reduce interference, sensitivity and DC offset estimation.BACKGROUND OF THE INVENTION[0003]Conventionally, Bluetooth receivers may have incorrect DC offset estimation using an access code as the access code does not have an evenly distributed binary code.[0004]Further, a Bluetooth receiver may lose one frame if there is large interference, as the gain control has one frame delay after RSSI detection.[0005]Finally, a Bluetooth receiver has no equalizer to improve sensitivity, as there is no redundant training pattern in a Bluetooth packet.[0006]Accordingly, a new Bluetooth receiver and method that overcome the...

Claims

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Application Information

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IPC IPC(8): H04L27/14H04B1/16
CPCH04L27/142H04B1/16H04B1/30
Inventor WANG, WEIFENGHUANG, YIMINGAO, MINGSHENG
Owner BEKEN CORP