Integrated Transceiver for Coherent Optical Backhauling
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Solution Overview
Problem
Conventional optical communication networks face challenges in reducing latency and costs due to the need for separate schedulers for multiple services, leading to increased complexity and footprint in distributed architectures.
Innovation Solution
An integrated transceiver is introduced, combining coherent and non-coherent optical transceiver portions with an integrated media access control (MAC) processor to enable cooperative scheduling and data traffic management between different optical communication networks, allowing for intelligent operation of distributed optical endpoints similar to centralized architectures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate schedulers are used for each service in distributed architectures, then multiple services can be supported, but latency increases and system complexity increases
Solution Approach 1:
The patent combines multiple service schedulers into a single integrated scheduler within the coherent optical network. This unified scheduler coordinates all services (DOCSIS, PON, wireless backhaul) through a single scheduling entity, eliminating the latency introduced by multiple separate scheduling decisions while maintaining the ability to support diverse services through the scheduler's multi-protocol capability
2Adaptability or versatility
If separate schedulers are used for each service in distributed architectures, then multiple services can be supported, but device complexity and footprint increase
Solution Approach 1:
The coherent optical network is designed with universal transceivers and a multi-functional scheduler that can handle multiple service types (DOCSIS cable services, PON fiber services, wireless backhaul) through a single device. This eliminates the need for separate dedicated hardware for each service type, reducing overall device complexity and footprint while maintaining versatility through software-configurable scheduling algorithms
3Device complexity
If centralized architecture is used, then scheduling is simplified, but space and power constraints at hub/headend increase
Solution Approach 1:
The patent segments the scheduling function from the physical hub/headend location and places it in distributed coherent optical networks at fiber node locations. This segmentation allows simplified scheduling logic to be distributed to edge locations, reducing the processing burden and physical footprint requirements at the central hub/headend while maintaining coordinated scheduling across the entire network
Data Source
AI summary
An integrated transceiver is provided for a coherent optical communication network. The integrated transceiver includes a first optical transceiver portion configured to receive and transmit coherent optical signals from and to the coherent optical communication network, respectively. The integrated transceiver further includes a second optical transceiver portion configured to receive and transmit non-coherent optical signals respectively from and to a non-coherent optical communication network. The integrated transceiver further includes an integrated media access control (MAC) processor disposed between the first and second optical transceiver portions. The integrated MAC processor is configured to (i) exchange cooperative scheduling information from the first optical transceiver portion to the second optical transceiver portion, and (ii) enable the first optical transceiver portion to schedule data traffic between the coherent and non-coherent optical communication networks using scheduling information obtained from a control plane of the second optical transceiver portion.