MBAN Channel Switching for Interference Avoidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The conventional Medical Body Area Network (MBAN) system lacks a method for efficiently switching channels between the 2360 to 2390 MHz and 2390 to 2400 MHz frequency bands, particularly when the first frequency band is used by other wireless communication systems or when an MBAN terminal moves outside a designated area.
Innovation Solution
A method and apparatus for controlling channel switching in an MBAN system, where an MBAN master receives information from an MBAN controller about channel usage in a second frequency band and transmits instructions to an MBAN terminal to switch channels based on availability, using either a broadcast or unicast scheme, including a recommended channel list or specific channel information, to ensure seamless communication without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the MBAN system operates in the 2360 to 2390 MHz frequency band, then communication can be provided in registered healthcare facilities, but interference occurs when other wireless communication systems use the same band
Solution Approach 1:
The patent implements dynamic channel switching between the 2360-2390 MHz and 2390-2400 MHz frequency bands based on real-time detection of primary user activity. The MBAN system transitions from a static frequency assignment to a dynamic one, allowing terminals to switch bands when interference is detected in the 2360-2390 MHz band, thereby maintaining reliable communication without persistent interference
Solution Approach 2:
The patent employs a feedback mechanism where the MBAN system continuously monitors the 2360-2390 MHz band for primary user signals. When interference is detected, the system receives notification from the MBAN controller and switches to the 2390-2400 MHz band. This closed-loop feedback ensures the system adapts to changing spectral conditions and maintains communication reliability
2Adaptability or versatility
If the MBAN terminal moves outside the designated area, then mobility is enabled, but channel switching methods are undefined causing communication disruption
Solution Approach 1:
The patent prepares for terminal mobility by pre-defining channel switching procedures and frequency band transitions. Before a terminal moves outside the designated area, the system has already established the protocol for detecting band unavailability and switching to alternative bands, ensuring seamless communication continuity without interruption
3Object-affected harmful factors
If the MBAN system switches between frequency bands, then interference avoidance is achieved, but channel switching complexity increases
Solution Approach 1:
The patent introduces the MBAN controller as an intermediary that manages channel switching between frequency bands. Rather than each terminal independently managing complex switching logic, the centralized controller receives information about primary user activity and coordinates band switching for all terminals, simplifying the overall system architecture while achieving interference avoidance
Data Source
AI summary
The disclosure of the present invention provides a method for a Medical Body Area Network (MBAN) to control, through a master, the channel switching of an MBAN terminal that uses a channel of a first frequency band in an MBAN system. The method includes: receiving information related to the use of each channel of a second frequency band from an MBAN controller; and transmitting information on a channel of the second frequency band that the MBAN terminal is to switch on the basis of the received information related to the use of each channel of the second frequency band. The first frequency band and the second frequency band are distinguished from each other based on whether the MBAN terminal uses a corresponding frequency band first.