Dynamic Resource Allocation for Cellular Interference Control
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Solution Overview
Problem
Current cellular communication systems face interference issues due to limited frequency reuse possibilities, leading to reduced system capacity and poor communication quality, especially with uneven traffic distribution and complex power sequence designs that require additional network planning.
Innovation Solution
A method for dynamically allocating resources based on load conditions, using adaptive frequency reuse patterns and orthogonal resource allocation to manage capacity requests, reducing interference and improving system efficiency by selecting resource reuse patterns and scheduling orders that adapt to varying loads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spatial frequency reuse distance D is increased to reduce interference, then communication quality is improved, but system capacity decreases
Solution Approach 1:
The patent applies dynamic resource allocation where the network controller dynamically adjusts resource allocation and power settings based on real-time load conditions in different cells. This allows the system to adaptively optimize both interference reduction and capacity utilization, rather than using fixed spatial frequency reuse patterns
Solution Approach 2:
The patent changes key parameters including power allocation ratios, resource block assignments, and modulation schemes based on measured load conditions. By adjusting these parameters dynamically, the system can maintain communication quality while increasing overall capacity through efficient resource utilization
2Productivity
If frequency reuse factor k is decreased to increase system capacity, then more users can be serviced, but interference between cells increases
Solution Approach 1:
The patent implements cell-specific resource allocation where each cell receives customized resource blocks and power settings based on its individual load conditions and interference environment. This local optimization allows aggressive frequency reuse in some areas while maintaining quality in others, increasing overall system capacity without universal interference problems
Solution Approach 2:
The network controller continuously monitors load conditions, interference levels, and communication quality, then adjusts resource allocation and power settings in real-time. This feedback mechanism enables the system to maintain low interference even with high frequency reuse factors by dynamically responding to changing conditions
3Reliability
If complex power sequence designs are used to manage interference, then interference control is improved, but network planning complexity increases
Solution Approach 1:
The system performs self-configuration where the network controller automatically determines optimal power sequences and resource allocations based on measured load conditions, eliminating the need for manual network planning of complex power sequences. The system adapts autonomously to changing conditions without requiring expert intervention
Solution Approach 2:
The patent pre-calculates multiple power sequence options and resource allocation patterns that can be quickly deployed based on current load conditions. This preliminary preparation allows the system to respond dynamically to changing conditions without requiring complex real-time calculations or manual planning
Data Source
AI summary
A method of allocating resources to cells of a cellular communication system comprising the steps of determining a load in at least one of the cells; selecting a resource reuse pattern from a set of resource reuse patterns based on the determined load; allocating resources in accordance with the selected resource reuse pattern.