Initial Control Frame Format for Wireless Coexistence Signaling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless network technologies face interference issues due to coexistence with other technologies like Bluetooth and Zigbee, which share similar frequency bands and channels, leading to unpredictable interference and a lack of mechanisms for exchanging coexistence information in initial control frames.
Innovation Solution
The introduction of an initial control frame (ICF) and initial control response (ICR) frame design that includes unavailability information, allowing for the exchange of coexistence information through buffer status reports and multi-STA block acknowledgments, with format determination based on specific fields in the frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If TXOP is reduced dynamically to avoid interference from co-existing technologies, then interference management is improved, but the ability to exchange coexistence information through existing ICF and ICR frames is insufficient
Solution Approach 1:
The ICF and ICR frames are designed to serve multiple functions: they not only facilitate the reduced TXOP mechanism for interference avoidance but also carry coexistence information exchange capabilities. The frames incorporate fields that enable both TXOP management and coexistence information transmission, making them universal control frames for dual purposes.
Solution Approach 2:
The ICF and ICR frames act as intermediaries that bridge the gap between TXOP reduction needs and coexistence information exchange requirements. These frames mediate the communication between devices, carrying both the control information for TXOP management and the coexistence information needed for coordinated operation.
2Loss of information
If new ICF and ICR frames are designed to exchange coexistence information, then coexistence information exchange is improved, but implementation complexity increases
Solution Approach 1:
By designing the ICF and ICR frames to be multi-functional, the patent avoids creating separate dedicated frames for coexistence information exchange. The existing frame structures are enhanced with additional fields that can carry coexistence information, thereby reducing the need for entirely new frame types and minimizing implementation complexity.
Solution Approach 2:
The patent merges the TXOP control function and coexistence information exchange function into the same ICF and ICR frame structures. This consolidation eliminates the need for separate frame types, reducing the overall complexity of the system while maintaining both capabilities.
3Device complexity
If existing ICF and ICR frames are used without modification, then implementation complexity is reduced, but they lack the mechanism to exchange coexistence information
Solution Approach 1:
The patent modifies the parameters and structure of existing ICF and ICR frames by adding new fields and changing existing field meanings to include coexistence information capabilities. This parameter change approach allows the frames to maintain backward compatibility while gaining new functionality for coexistence information exchange.
Solution Approach 2:
The enhanced ICF and ICR frames are designed to perform multiple functions simultaneously - they continue to serve their original TXOP control purposes while also carrying coexistence information. This multi-functionality approach allows existing frames to adapt to new requirements without requiring complete frame redesign.
Data Source
AI summary
A station (STA) in a wireless network includes a memory and a processor coupled to the memory, the processor is to cause receiving, from an access point (AP), an initial control frame (ICF) that solicits an initial control response (ICR) frame including unavailability information, the ICF including a field indicating a format of the ICR frame and transmitting, to the AP, the ICR frame including unavailability information, the format of the ICR frame being determined based on the field indicating the format of the ICR frame in response to the ICF.