Frequency Band Switching via Capability-Exchange Frames
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Solution Overview
Problem
Current communication technologies, such as IEEE 802.11ad, face challenges in efficiently switching between multiple frequency bands for communication, as existing methods do not effectively consider device capabilities and preferred connection types, leading to suboptimal communication performance.
Innovation Solution
A method and apparatus for changing frequency bands used in communication between devices, which involves transmitting a frequency band change request frame containing information about device capabilities and preferred connections, and receiving a response to selectively change the frequency band based on the received information, ensuring compatibility and optimal communication settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency band switching is performed without considering device capabilities and preferred connection types, then frequency band change can be implemented, but communication performance becomes suboptimal
Solution Approach 1:
The patent applies preliminary action by including device capability information and preferred connection type information in the frequency band change request frame before the actual frequency band switching occurs. This allows the receiving device to evaluate compatibility and select optimal parameters in advance, ensuring optimal communication performance is achieved from the start of the frequency band transition rather than requiring subsequent adjustments.
Solution Approach 2:
The patent implements feedback by having the receiving device send a frequency band change response frame that includes information about its own capabilities and the selected connection parameters. This feedback loop allows the transmitting device to understand whether the frequency band change request is acceptable and what parameters will be used, enabling informed decision-making about the frequency band transition.
2Adaptability or versatility
If device capability information is included in frequency band change request, then communication compatibility is improved, but frame size and processing complexity increase
Solution Approach 1:
The patent applies universality by designing the frequency band change request frame and response frame to carry multiple types of information simultaneously - including device capability information, preferred connection type information, and frequency band change parameters. This multi-functional frame structure allows comprehensive compatibility assessment without requiring separate signaling messages for each type of information, thereby managing complexity efficiently while achieving broad adaptability.
Data Source
AI summary
A method and apparatus for changing a frequency band used for communication between first and second devices supporting multiple frequency bands. The method includes transmitting a frequency band change request frame including information regarding a communication capability of the first device and a frequency band change request for requesting to change a frequency band currently being used for communication between the first and second devices, to the second device; receiving a frequency band change response frame corresponding to the frequency band change request frame, from the second device; and selectively changing the frequency band currently being used to another frequency band based on the received frequency band change response frame.