Centralized Radio Resource Management in Large Wireless Networks
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Solution Overview
Problem
Current wireless communication networks face challenges in efficiently managing resources across a large number of access points, leading to sub-optimal solutions for resource allocation and interference management, especially in densely deployed networks where traffic variations and interference conditions are complex.
Innovation Solution
A system and method that utilize a central controller to collect traffic and channel information from access points, determining resource allocation recommendations based on received data and transmitting these to the access points for implementation, employing a pattern-pursuit algorithm to optimize resource allocation and user association, thereby reducing interference and enhancing network utility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of access points are deployed to improve network coverage and capacity, then network coverage and capacity are improved, but resource management complexity and interference management difficulty increase
Solution Approach 1:
The patent segments the resource management function by introducing a central controller that collects information from multiple access points and computes resource allocation recommendations. This separates the complex optimization problem from individual access points, allowing each access point to implement simpler local decisions based on centralized guidance, thereby managing resource allocation in large-scale networks effectively
Solution Approach 2:
The central controller acts as an intermediary between access points and the network core. It collects traffic and channel information from access points, computes optimal resource allocation recommendations using pattern-pursuit algorithms, and transmits these recommendations back to access points. This intermediary structure simplifies the overall system by centralizing the complex computation while enabling coordinated resource management across numerous access points
2Productivity
If resource allocation is optimized to improve network utility and reduce interference, then network performance is improved, but computational complexity and processing time increase
Solution Approach 1:
The patent transforms the resource allocation problem by changing parameters from traditional per-access-point optimization to a centralized formulation that considers all access points simultaneously. The central controller collects global information and computes resource allocation recommendations that optimize network-wide utility, achieving better performance by operating at a different parameter level (network-wide vs. local)
Solution Approach 2:
The patent replaces traditional distributed resource allocation mechanisms with a centralized control system that uses pattern-pursuit algorithms. Instead of each access point independently making decisions based on limited local information, the central controller uses sophisticated algorithms to compute optimal allocations, substituting mechanical distributed decision-making with a more efficient centralized computational approach
3Productivity
If centralized control is implemented to optimize resource allocation across the network, then resource allocation efficiency is improved, but communication overhead and control complexity increase
Solution Approach 1:
The patent implements partial centralized control where the central controller collects essential traffic and channel information from access points and computes resource allocation recommendations. It does not micromanage every aspect of access point operation,而是 focuses on key resource allocation decisions. This partial centralization achieves improved efficiency without the excessive overhead of complete centralized control
Data Source
AI summary
A system for allocating resources in a communication network includes a plurality of access points and a central controller having a transceiver and a processor. Each of the plurality of access points is configured to identify traffic information and channel information and transmit the traffic information and the channel information to the central controller. The central controller is configured to receive the traffic information and the channel information from each of the plurality of access points and to determine resource allocation recommendations based at least in part on the received traffic information and the received channel information. The central controller is also configured to transmit the resource allocation recommendations to the plurality of access points. Each of the plurality of access points is configured to allocate a resource based on the resource allocation recommendations and on local network information.