Backhaul Resource Sharing for Ultra-Dense Small Cells
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Solution Overview
Problem
In ultra-dense network deployments, ensuring quality of service (QoS) for small cells using wired backhaul links is challenging due to limited network resources and long-distance information transmission across different operator networks, leading to bottlenecks and high costs.
Innovation Solution
A resource sharing method that allows backhaul network resources to be shared between multiple communication networks, ensuring QoS by authenticating terminals and providing services based on subscription QoS levels, while encrypting and securely transmitting access requests through differentiated service protocols or RSVP, and selecting optimal backhaul links based on availability and agreements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If small cells use wired backhaul links of third-party operators, then backhaul network resources can be shared and costs reduced, but QoS cannot be reliably ensured due to long transmission distance and network interface bottlenecks
Solution Approach 1:
The patent introduces a QoS assurance mechanism as an intermediary between the small cell and the third-party operator's backhaul network. This mechanism includes establishing QoS parameters, monitoring transmission quality, and implementing corrective actions to ensure service quality despite using shared third-party infrastructure.
Solution Approach 2:
The patent implements preliminary QoS configuration and agreement establishment before actual service deployment. QoS parameters, service level agreements, and transmission guarantees are pre-negotiated and configured between operators, ensuring quality requirements are met before traffic actually flows through the shared backhaul network.
2Productivity
If small cells deploy in ultra-dense networks, then coverage and capacity are improved, but the amount of traffic and backhaul requirements increase significantly
Solution Approach 1:
The patent enables backhaul network infrastructure to serve multiple functions and multiple operators simultaneously. The same physical backhaul links are used for both dedicated home operator traffic and shared third-party operator traffic, maximizing resource utilization and supporting ultra-dense deployment without proportionally increasing infrastructure requirements.
Solution Approach 2:
The patent merges multiple operators' backhaul requirements into shared physical infrastructure. By combining traffic from multiple small cells and operators over common backhaul links with appropriate QoS management, the system achieves ultra-dense network capacity without each operator needing to build separate dedicated infrastructure.
3Reliability
If operators build dedicated backhaul networks, then QoS can be ensured, but costs become prohibitively high
Solution Approach 1:
The patent introduces QoS monitoring and management mechanisms as intermediaries that enable cost-effective shared infrastructure while maintaining service quality. These intermediaries include QoS measurement points, reporting mechanisms, and automated adjustment systems that ensure dedicated-service quality over shared infrastructure.
Solution Approach 2:
The patent dynamically adjusts QoS parameters, bandwidth allocation, and transmission priorities based on actual network conditions and service requirements. This allows the system to maintain high QoS when needed while reducing resource consumption and costs during periods of lower demand, optimizing the trade-off between quality and expense.
Data Source
AI summary
Resource sharing method and device are provided. The method includes: sending an access request to a second communication network through a target backhaul link of the second communication network by a resource sharing device when the access request is received from a terminal from a first communication network; sending the access request to the first communication network by the second communication network, for authenticating the terminal; sending QoS level information of the terminal to the second communication network by the first communication network when the terminal is authenticated, and sending access rejected information to the second communication network when the terminal is unauthenticated; providing services for the terminal according to the subscription QoS level information, or rejecting to provide services for the terminal according to the access rejected information. The present disclosure realizes sharing of backhaul resources of different communication networks and ensures the QoS of the resource sharing device.