Wireless Backhaul Routing via Controlling Node
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Solution Overview
Problem
Current wireless backhaul networks lack efficient methods for routing data, particularly when using unlicensed wireless access interfaces, which can lead to inefficiencies due to factors like contention, delay, and varying bandwidth, impacting the quality of service and network performance.
Innovation Solution
A method where a controlling communications node in a wireless backhaul network maintains information on conditions for communicating data via multiple wireless links, determines routing information based on these conditions, and configures routing tables for communications nodes to select optimal routes, including those using unlicensed wireless access interfaces, considering characteristics like contention, delay, and bandwidth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If routing information is not maintained for unlicensed wireless access interfaces, then device complexity is reduced, but quality of service deteriorates due to contention and delay
Solution Approach 1:
The controlling communications node pre-determines and configures routing information for unlicensed wireless access interfaces before data transmission occurs. This preliminary action includes assessing contention levels, delay characteristics, and bandwidth availability, then proactively configuring routing tables at communications nodes to avoid real-time decision-making complexity while ensuring QoS requirements are met.
Solution Approach 2:
The patent introduces an intermediary routing information structure that mediates between the controlling communications node and communications nodes. This intermediary layer abstracts the complexity of unlicensed interface management by providing pre-processed routing decisions, thereby reducing device complexity while maintaining QoS through centralized control of routing policies.
2Adaptability or versatility
If multiple routing paths are configured without optimization, then adaptability is improved, but productivity decreases due to inefficient data transmission
Solution Approach 1:
The patent dynamically changes routing parameters based on network conditions by configuring routing information that includes bandwidth availability, contention levels, and delay characteristics. The controlling communications node adjusts routing table entries at communications nodes according to current network state, enabling adaptability to changing conditions while optimizing data transmission efficiency through parameter-driven route selection.
Solution Approach 2:
The routing configuration is made dynamic rather than static. The controlling communications node continuously monitors network conditions and updates routing information for unlicensed wireless access interfaces, allowing the system to adapt to changing bandwidth availability, contention levels, and delay characteristics while maintaining optimal data transmission paths.
3Ease of operation
If routing tables are not configured with unlicensed interface characteristics, then ease of operation is improved, but loss of information increases due to bandwidth optimization issues
Solution Approach 1:
The routing tables are automatically configured by the controlling communications node based on assessed network conditions, eliminating manual configuration complexity. The system performs self-service by autonomously determining optimal routing paths that account for unlicensed interface characteristics such as bandwidth availability and contention levels, thereby preventing information loss through automated bandwidth optimization while maintaining ease of operation.
Solution Approach 2:
The controlling communications node uses feedback from network condition monitoring to configure routing tables with appropriate unlicensed interface characteristics. By continuously assessing bandwidth availability, contention levels, and delay characteristics, the system generates informed routing decisions that optimize bandwidth utilization without requiring manual intervention, thus preventing information loss while maintaining operational simplicity.
Data Source
AI summary
Methods and communications nodes for communications between communications devices, various communications nodes in a wireless backhaul network and a core network.