Device and method for selecting operating frequency point

By designing the main circuit path and auxiliary circuit path in the Bluetooth receiver and evaluating and selecting Bluetooth frequency points, the problem of interference from Bluetooth devices in the 2.4GHz frequency band is solved, and communication quality and throughput are improved.

CN116266762BActive Publication Date: 2025-04-04BEKEN CORP
2 Cites 0 Cited by

Patent Information

Application Number
CN202111553002.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-12-17
Publication Date
2025-04-04
Estimated Expiration
2041-12-17

AI Technical Summary

Technical Problem

In wireless communication environments in the 2.4GHz band, Bluetooth devices are susceptible to interference from Wi-Fi devices and other Bluetooth devices, resulting in decreased communication quality and throughput.

Method used

A Bluetooth receiver is designed, including the main circuit path and the auxiliary circuit path. The main circuit path is used to amplify and process Bluetooth signals, and the auxiliary circuit path evaluates the interference levels of multiple Bluetooth frequency points through the signal analysis module, and selects the appropriate operating frequency points to generate an AFH channel mapping table.

Benefits of technology

The rapid and efficient selection of Bluetooth devices for AFH operating frequency points is achieved, reducing interference and improving the quality and throughput of Bluetooth communication.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The Bluetooth receiver may include a main circuit path and an auxiliary circuit path connected in parallel with the main circuit path, which may generate a first digital intermediate frequency modulation signal, the main circuit path obtains a Bluetooth load signal at a current Bluetooth frequency point, and the auxiliary circuit path may create a second digital intermediate frequency modulation signal within a Bluetooth frequency range of multiple Bluetooth frequency points. The signal analysis module of the auxiliary circuit path may evaluate the interference level of the second digital intermediate frequency modulation signal at the Bluetooth frequency point by analyzing the Fourier transform (FT) spectrum of the second digital intermediate frequency modulation signal, and select a working Bluetooth frequency point corresponding to a relatively low signal strength in the FT spectrum. This method may efficiently and quickly select a qualified working Bluetooth frequency point for adaptive frequency hopping (AFH) in a single current time slot without consuming any additional detection time slots.
Need to check novelty before this filing date? Find Prior Art