Wireless Node Handoff Using Multi-Parameter Rules
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Solution Overview
Problem
Existing techniques for managing handoff processes between access points in wireless networks are not satisfactory in certain situations, leading to suboptimal performance and increased power consumption.
Innovation Solution
The solution involves a node accessing handoff rules and determining relevant factors to decide whether to hand off from a first access point to a second, using a scanning engine to identify available channels and a handoff initiator to initiate the handoff process based on specific criteria such as signal strength and channel utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known techniques are used for managing handoff processes, then basic communication functionality is maintained, but system performance is suboptimal and power consumption increases
Solution Approach 1:
The patent applies parameter changes by evaluating multiple handoff factors (signal strength, channel utilization, interference levels, power consumption metrics) and dynamically adjusting handoff decisions based on weighted combinations of these parameters. The system changes the operational parameters of handoff management from simple signal-strength-based decisions to multi-parameter optimization, thereby improving system performance while reducing power consumption through intelligent factor weighting and threshold adjustments.
2Reliability
If frequent handoff evaluations are performed to improve communication quality, then voice performance and system performance improve, but computational overhead and processing time increase
Solution Approach 1:
The patent implements partial action by performing handoff evaluations selectively rather than continuously. The system determines handoff factors and applies handoff rules only when specific conditions are met or when threshold changes indicate potential handoff opportunities, rather than constantly monitoring all parameters. This reduces unnecessary processing while maintaining adequate voice performance through targeted evaluations at critical moments.
Solution Approach 2:
The system performs preliminary action by pre-calculating and storing handoff factors, channel information, and rule criteria before actual handoff decisions are needed. Handoff factors are determined in advance based on current network conditions, and multiple handoff rules are pre-established with their respective weightings, enabling faster real-time decisions without extensive computational overhead during critical handoff moments.
3Reliability
If multiple handoff factors are evaluated to optimize handoff decisions, then communication quality improves, but device complexity and computational requirements increase
Solution Approach 1:
The patent applies segmentation by dividing the handoff management process into distinct modular components: handoff factor determination, individual rule evaluation, weighted scoring mechanisms, and decision execution. Each handoff factor (signal strength, channel utilization, interference) is evaluated separately and then combined through a structured scoring system. This modular segmentation reduces device complexity by organizing complex evaluations into manageable, independent modules that can be implemented and maintained more easily.
Data Source
AI summary
Handing off a node from a first access point to a second access point includes facilitating communication between a node and a network using a first access point. A handoff rule of one or more handoff rules is accessed. One or more handoff factors associated with the first access point and a second access point are determined. A handoff factor is relevant in deciding whether to handoff from the first access point to the second access point. The handoff rule is applied to the one or more handoff factors. Handoff of the node to the second access point is initiated if the one or more handoff factors satisfy the applied handoff rule.