Multi-Access Point Coordination for Wi-Fi Coverage Holes
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Solution Overview
Problem
Existing Wi-Fi networks suffer from coverage holes, leading to radio link failures and poor user experience due to inadequate signal propagation, with current mitigation methods increasing interference and not guaranteeing coverage, especially in environments with physical obstacles.
Innovation Solution
Implementing a Multi-Access Point Coordination (MAPC) framework to enable exchange and transfer of user associations among Wi-Fi access points, allowing seamless handover to a suitable neighboring access point through negotiation and authorization of a second wireless communication session when a device enters a coverage hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If current coverage hole mitigation methods are used, then coverage area is improved, but interference increases
Solution Approach 1:
The patent introduces a coordination mechanism as an intermediary between multiple access points. When a coverage hole is detected, the system coordinates with neighboring access points to establish a second wireless communication session, allowing the user device to switch to a different access point without causing interference. This mediator approach enables cooperative coverage extension while maintaining interference control through coordinated resource management.
2Area of stationary object
If current coverage hole mitigation methods are used, then coverage holes are partially addressed, but reliability is not guaranteed
Solution Approach 1:
The patent implements prior cushioning by establishing coordination agreements between access points in advance. When a coverage hole is detected, the system has pre-arranged backup access points ready to provide service. This preparatory coordination ensures that when coverage problems occur, reliable alternative connections are immediately available, guaranteeing connection reliability rather than merely attempting partial coverage extension.
3Reliability
If Multi-Access Point Coordination framework is implemented, then connection continuity is improved, but device complexity increases
Solution Approach 1:
The patent applies self-service by enabling access points to autonomously detect coverage holes and initiate coordination procedures with neighboring access points. The system automatically manages the complexity of multi-access point coordination, handover decisions, and session management without requiring complex user device processing. This shifts the complexity burden from user devices to the network infrastructure, maintaining connection continuity while keeping end-user devices simple.
Data Source
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AI summary
There is herein disclosed an apparatus comprising means for determining that a first access point and a second access point are in a coordination agreement and that a device is in a first wireless communication session with the first access point and determining that the device is positioned in a coverage hole of the first access point. The apparatus further comprises means for transmitting, to the second access point, a request for the second access point to indicate whether it is suitable for providing a second wireless communication session with the device and means for receiving, from the second access point, an indication that the second access point is suitable for providing a second wireless communication session with the device. The apparatus further comprises means for negotiating an authorisation of the second wireless communication session between the device and the second access point and means for authorising the second wireless communication session between the device and the second access point.