Wireless Backhaul Link Bandwidth Allocation for Base Stations
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Solution Overview
Problem
Conventional wired backhaul connections in wireless communication networks are costly and difficult to deploy, especially in metropolitan areas, and often under-engineered, leading to backhaul contentions and inefficiencies.
Innovation Solution
Implementing wireless links using WiMax and WiFi carriers for backhaul connections, with a bandwidth allocation method that adjusts based on monitored conditions such as usage and congestion to ensure sufficient bandwidth for both WiMax and other communication services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wired backhaul connections (T1, E1, STM/OC3 carriers) are used, then connection stability and reliability are improved, but deployment cost and difficulty increase significantly
Solution Approach 1:
The patent replaces physical wired connections (mechanical/cable-based backhaul infrastructure) with wireless communication links (WiMax and WiFi carriers). This substitution eliminates the need for deploying cables in metropolitan areas, avoiding the associated difficulties of trenching, permitting, and physical installation while maintaining backhaul connectivity through electromagnetic wave transmission.
2Reliability
If wired backhaul connections are deployed in metropolitan areas, then connection reliability is improved, but deployment cost increases due to underground cable requirements
Solution Approach 1:
The patent substitutes wireless communication technology for expensive underground cable deployment. By using WiMax and WiFi carriers, the system avoids all costs associated with trenching, cable installation, permitting, and maintenance of physical infrastructure, while achieving comparable or superior backhaul performance through radio frequency transmission.
3Quantity of substance
If backhaul capacity is under-engineered to avoid worst-case scenarios, then deployment cost is reduced, but backhaul contentions and inefficiencies increase
Solution Approach 1:
The patent implements dynamic bandwidth allocation for WiMax services within the backhaul connection. The system continuously monitors backhaul usage conditions and automatically adjusts the bandwidth allocated to WiMax services in real-time. This dynamic adaptation allows the system to efficiently utilize available backhaul capacity without over-provisioning, preventing contentions while maintaining cost-effectiveness through responsive resource management.
4Ease of manufacture
If wireless links (WiMax, WiFi) are used for backhaul, then deployment cost and ease are improved, but bandwidth allocation complexity increases
Solution Approach 1:
The patent implements a feedback-based bandwidth allocation mechanism where the system continuously monitors backhaul usage conditions and automatically adjusts WiMax service bandwidth accordingly. This closed-loop control simplifies the overall system by automating what would otherwise be complex manual configuration, allowing wireless backhaul deployment to remain easy while dynamically optimizing performance based on real-time network conditions.
Data Source
AI summary
One embodiment of the communication system includes a switch, at least one base station, and a backhaul connection including at least one wireless link connecting the at least one base station to the switch. The wireless link may include at least one of a WiMax carrier and a WiFi carrier.