Network Controller Translating Radio Traffic to Transport Requirements
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Solution Overview
Problem
Current transport solutions in communications networks fail to efficiently manage the concurrent and dynamic connectivity requirements of radio layer traffic, leading to bandwidth waste or reduced service levels, especially when handling both backhaul and fronthaul traffic from radio base stations and remote radio units.
Innovation Solution
A method and network controller that translate dynamic radio traffic requests into transport layer requirements, allocating resources such as bandwidth, latency, and synchronization across optical channels to meet the specific needs of wireless communication nodes, including coordination clusters and handover scenarios, while optimizing resource allocation and providing feedback for relaxed requirements if necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current transport solutions are used to handle both backhaul and fronthaul traffic on the same physical infrastructure, then network resource sharing is achieved, but bandwidth waste or reduced service levels occur due to inability to dynamically adjust connectivity
Solution Approach 1:
The patent implements dynamic resource allocation by translating radio layer traffic requests into transport layer connectivity requirements in real-time. The network controller continuously monitors traffic demands from multiple radio base stations and remote radio units, and dynamically adjusts transport network resource allocation accordingly, enabling the system to adapt to changing connectivity needs and avoid static bandwidth allocation waste
Solution Approach 2:
The system changes transport network parameters (bandwidth allocation, latency requirements, synchronization settings) based on translated radio traffic requirements. By dynamically adjusting these parameters according to actual traffic demands, the system optimizes bandwidth utilization while meeting service level requirements for different radio access technologies
2Reliability
If transport network resources are allocated to meet diverse radio layer requirements, then service levels are improved, but resource allocation complexity increases
Solution Approach 1:
The patent introduces a network controller as an intermediary that translates radio layer traffic requests into transport layer connectivity requirements. This intermediary layer simplifies the resource allocation process by providing a standardized translation mechanism between different radio access technologies and the underlying transport network, reducing the complexity of directly managing diverse service level requirements
Solution Approach 2:
The translation mechanism serves multiple radio access technologies (LTE, 5G, Wi-Fi) through a universal interface. The network controller handles diverse traffic requirements from different radio nodes using a common translation and resource allocation framework, reducing overall system complexity while maintaining high service levels for all technologies
3Reliability
If linked resources are allocated for coordination clusters and handover scenarios, then radio traffic coordination is improved, but transport network resource constraints are exacerbated
Solution Approach 1:
The patent merges resource allocation for coordination clusters and handover scenarios by translating their respective traffic requirements into unified transport layer connectivity demands. The network controller consolidates these linked resource requests and allocates transport network resources efficiently, reducing total resource consumption while maintaining reliable traffic coordination for cluster operations and seamless handovers
Data Source
AI summary
A method of operation of a communications network comprises receiving a plurality of dynamic radio traffic requests from wireless communications nodes. The traffic requests comprise requests for backhaul traffic received from radio base stations, and requests for fronthaul traffic to digital units received from remote radio units. The radio traffic requests are translated into corresponding transport layer requirements. Transport network resources are requested for the radio traffic based on the transport layer requirements, which meet the radio traffic requests.