Wireless Resource Scheduling Offset Factor
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Solution Overview
Problem
In wireless networks, high power wireless devices are often unfairly chosen for resource grants over off-the-shelf or low power devices due to disparities in power headroom data, leading to inefficient resource allocation and network imbalance.
Innovation Solution
Implement a system where access nodes classify devices based on power headroom reports and calculate an offset scheduling factor to distribute resources more evenly among high and low power devices, ensuring fair resource allocation by using the selected scheduling factor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high power wireless devices are selected for resource grants based on power headroom data, then network coverage and throughput are enhanced, but resource allocation fairness deteriorates and network load balance worsens
Solution Approach 1:
The patent modifies the scheduling decision parameters by introducing a power device type classification (high power vs. low power) and applying different scheduling factors based on this classification. This changes the scheduling parameter from purely power-headroom-based to a composite parameter that includes device type and power offset factors, thereby achieving fairer resource allocation while maintaining network throughput.
2Area of stationary object
If high power wireless devices are prioritized for resource grants, then coverage levels are boosted, but network load balance deteriorates
Solution Approach 1:
The patent applies different scheduling qualities or weights to different device types. High power devices and low power devices are treated differently through the introduction of scheduling factors and power offsets specific to each device type. This local differentiation in scheduling quality ensures that coverage requirements are met while maintaining load balance across the network.
3Productivity
If power headroom data is used for scheduling decisions, then resource allocation efficiency is improved, but fairness among different device types deteriorates
Solution Approach 1:
The patent introduces an intermediary mechanism in the form of a scheduling factor and power offset that mediates between the power headroom data and the final scheduling decision. This intermediary layer adjusts the scheduling decisions to account for device type differences, ensuring that raw power headroom data does not directly lead to unfair allocation while preserving the efficiency benefits of power-based scheduling.
Data Source
AI summary
Systems and methods are described for allocating resources from an access node in a wireless network. Power reports may be received from multiple wireless devices at the access node. Based on the received power reports, the access node may classify each wireless device of the multiple wireless devices as a high power wireless device or a low power wireless device. An offset scheduling factor may be selected for wireless devices classified as high power wireless devices at the access node. Resources can be allocated for high power wireless devices using the selected offset scheduling factor.