OTN Service Path Configuration With Dynamic Bandwidth Allocation
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Solution Overview
Problem
In optical transport networks (OTN), preconfigured paths for user equipment (UE) services result in resource wastage and high network construction costs due to reserved bandwidth based on peak demand, even when the UE is not actively using the service.
Innovation Solution
Dynamic path establishment and bandwidth adjustment in OTN based on actual service requirements, allowing paths to be established only when needed and adjusting bandwidth accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a path is preconfigured for UE service in OTN, then the service can be transmitted with guaranteed bandwidth and low delay, but the bandwidth cannot be adjusted subsequently and resources are wasted when the UE is not using the service
Solution Approach 1:
The patent transforms the static preconfigured path into a dynamic path that can be established, adjusted, and deleted based on actual service needs. The network device dynamically determines whether to establish a new path or adjust an existing path's bandwidth based on real-time service status, enabling the system to adapt between reliability requirements and resource efficiency.
Solution Approach 2:
The patent changes the bandwidth parameter of the path dynamically. When a service is detected, the network adjusts the path's bandwidth from a reserved state to an active state with appropriate bandwidth allocation. This parameter change allows the system to maintain service quality when needed while releasing resources when the service is inactive.
2Reliability
If bandwidth is reserved based on peak demand during initial configuration, then service quality is ensured, but resources are wasted when the UE does not use the service continuously
Solution Approach 1:
The patent introduces feedback mechanisms where the network device monitors service status and uses this information to make intelligent decisions about path establishment and bandwidth adjustment. The feedback loop ensures that resources are allocated based on actual demand rather than peak potential demand, improving resource utilization while maintaining service quality when needed.
Solution Approach 2:
The system transitions from static bandwidth reservation to dynamic bandwidth allocation. The network device continuously assesses service status and adjusts path configuration accordingly, allowing the bandwidth to reflect actual usage patterns rather than being locked at peak demand levels indefinitely.
3Loss of energy
If the path is established for the service when the terminal initiates the service, then resource waste is reduced, but the path establishment process becomes more complex
Solution Approach 1:
The patent implements self-service mechanisms where the network device automatically detects service initiation and autonomously determines the appropriate path establishment or bandwidth adjustment actions. This automation reduces the need for manual configuration and simplifies the overall process, despite the increased logical complexity of the path management system.
Data Source
AI summary
This application relates to example service configuration methods and example apparatuses. In one example method, a first optical transport network (OTN) device receives a first message from an optical line terminal (OLT) device, where the first message includes first address information of a service. The first OTN device determines, based on the first message, whether a first path has been established in an OTN, where the first path is used to transmit data of the service, and the first path satisfies the first address information. The first OTN device establishes a path for transmitting data of the service or adjusts a bandwidth of the established first path based on a result of the determining.