Dynamic Frequency Switching for USB 3.0 Wireless Interference
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Solution Overview
Problem
USB 3.0 data transmission generates noise near 2.5 GHz, interfering with wireless communications like IEEE 802.11b/g/n and Bluetooth, leading to reduced throughput in wireless links.
Innovation Solution
A method to dynamically adjust the transmission frequency between a host and device in a data transmission system, allowing the system to switch to a different frequency when interference is detected, such as changing from 5 GHz to 4 GHz, to avoid interference with wireless signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If USB 3.0 operates at 5 GHz super speed, then data transmission rate is improved, but wireless communication is interfered with
Solution Approach 1:
The patent implements dynamic frequency switching between 5 GHz and 4 GHz based on real-time interference detection. The system transitions from a static fixed-frequency operation to a dynamic adaptive frequency selection, allowing the USB 3.0 connection to switch between frequencies to avoid interfering with wireless communications while maintaining high data transmission rates when interference is absent.
Solution Approach 2:
The patent changes the operating frequency parameter from a fixed 5 GHz to a variable frequency that can be 4 GHz or 5 GHz. This parameter change allows the system to adjust the data transmission frequency dynamically, thereby avoiding the harmful interference with wireless communications at 2.4 GHz while preserving high-speed data transmission capability.
2Object-affected harmful factors
If frequency switching is implemented to avoid interference, then wireless communication is protected, but system complexity increases
Solution Approach 1:
The patent employs feedback mechanisms where the host and device continuously monitor the transmission environment for interference conditions. Based on this feedback, the system automatically decides whether to switch frequencies or maintain the current connection, reducing the need for complex manual intervention while protecting wireless communications from interference.
Solution Approach 2:
The patent introduces negotiating information as an intermediary mechanism between the host and device. This negotiating information carries frequency availability details, allowing the system to coordinate frequency switching decisions without requiring complex direct control logic, thereby simplifying the overall system architecture while preventing interference.
Data Source
AI summary
A method of handling transmission for a host in a data transmission system includes establishing a connection with a device of the data transmission system via a first frequency; receiving a negotiating information from the device; and re-establishing the connection with the device via a second frequency when the negotiating information reveals that the second frequency is available for the host to communicate with the device; wherein the second frequency is different than the first frequency.