Wireless Access Point Selection via Redundant Radio Handover
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Solution Overview
Problem
Wireless devices experience disruptions in service when transitioning between wireless network access points due to inefficient timing in disconnecting from one access point and connecting to another, leading to delays in upper layer protocols and noticeable service interruptions.
Innovation Solution
Utilizing multiple radios in wireless devices to actively or passively detect network information from different access points, allowing for seamless switching by establishing a redundant connection before disconnecting from the current access point, thereby reducing the downtime in network transitions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless device disconnects from one access point and connects to another access point, then the device can access services from different locations, but service disruptions occur during the transition
Solution Approach 1:
The wireless device performs preliminary actions by detecting network information from potential target access points before disconnecting from the current access point. The device monitors signal strength, service identifiers, and network parameters in advance, and establishes connections to target access points before breaking connections from source access points, ensuring service continuity during transitions.
Solution Approach 2:
The patent introduces a transition mechanism where the wireless device maintains intermediate connections during AP switching. The device can hold multiple radio connections simultaneously, using one connection as an intermediary bridge during the transition phase, preventing complete service interruption while switching between access points.
2Area of stationary object
If the wireless device scans for and connects to a new access point, then network coverage is extended, but upper layer protocols experience delays
Solution Approach 1:
The wireless device performs preliminary network detection and connection establishment before actual data transmission begins. By pre-establishing the connection framework and obtaining network parameters in advance, the device minimizes protocol delays when transitioning to new coverage areas, as the upper layer protocols can resume quickly without full re-negotiation.
3Device complexity
If the wireless device uses a single radio for communication, then device complexity is reduced, but service disruptions occur during access point transitions
Solution Approach 1:
The patent makes the wireless device multi-functional by equipping it with multiple radios that can perform different functions simultaneously. One radio maintains the current connection while another establishes the new connection, enabling seamless transitions. The system can dynamically allocate radio functions based on transition needs, maintaining service continuity without requiring complex hardware architecture.
Data Source
AI summary
Systems, methods, and devices are described for establishing communication with an access point. A wireless device may determine to switch to another access point radio based on a variety of factors. The wireless device may use a dynamic threshold to determine whether to switch to another access point radio. The dynamic threshold may be based on a current state of the wireless device. The wireless device may determine other access point radios to switch to directly or indirectly. An access point radio may broadcast information associated with the access point as well as information associated with other access point radios.