GPON Uplink Scheduling via Configurable Priority Queue Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current GPON systems lack flexibility in scheduling uplink messages with different priorities under the N:M bridge-mapping service model, as they cannot create multiple priority queues (pqs) according to specific needs and are limited by default mapping rules, which restricts the ability to prioritize uplink messages with higher P-bits for later transmission orders.
Innovation Solution
A private managed entity (ME) is configured for the 802.1p entity, allowing for a customizable mapping relationship between priority queues and P-bits, enabling flexible scheduling of uplink messages by creating corresponding pqs based on defined priorities, and supporting both scenarios with and without private ME configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If default mapping rules are used for uplink messages with different P-bits, then the system operates with simple default rules, but the scheduling flexibility is insufficient and cannot meet specific transmission needs
Solution Approach 1:
The patent introduces dynamic configurability to the scheduling system by allowing operators to define custom mapping relationships between P-bits and priority queues through management information base (MIB) parameters. This enables the system to adapt its scheduling behavior dynamically based on specific service requirements, moving from static default rules to flexible configurable rules without fundamentally changing the system architecture
Solution Approach 2:
The patent changes the scheduling behavior by modifying configurable parameters in the MIB, specifically the mapping relationship between P-bits and priority queues. By allowing these parameters to be customized, the system can adjust its scheduling characteristics to meet different service demands, transforming the fixed parameter system into a flexible parameter-driven system
2Adaptability or versatility
If multiple ANI side bridge ports are configured to map uplink messages to different GEM PORTs according to VLAN-Ids, then the mapping capability is improved, but the device complexity and configuration difficulty increase
Solution Approach 1:
The patent makes the 802.1p entity universal by enabling it to handle multiple P-bit values and map them to different priority queues within the same GEM PORT context. This single entity can perform the function previously requiring multiple bridge ports, consolidating the mapping capability while reducing overall system complexity
Solution Approach 2:
The patent introduces a configurable mapping layer as an intermediary between P-bit classification and priority queue selection. This mapping mechanism, controlled through MIB parameters, acts as a flexible mediator that can redirect traffic flow according to customized rules, decoupling the classification function from the queue selection function and enabling more versatile mapping scenarios
3Productivity
If uplink messages are scheduled according to fixed default rules, then the system operation is simple, but the transmission efficiency for specific service requirements is reduced
Solution Approach 1:
The patent enables preliminary configuration of scheduling parameters through MIB setup, allowing the system to be pre-configured with optimal mapping relationships for specific service requirements. This preliminary action prepares the system in advance to handle particular traffic patterns efficiently, rather than relying on generic default rules that may not optimize for specific scenarios
Data Source
AI summary
The present invention discloses a method and a system for scheduling an uplink message based on a Gigabit-capable Passive Optical Network (GPON). The method includes the following steps of: configuring a private managed entity for an 802.1p entity, and defining a mapping relationship between a priority queue and a priority of an uplink message in the private managed entity (S100); the 802.1p entity scheduling an uplink message from an optical network unit, mapping the uplink message to a corresponding GEM PORT, and creating a corresponding priority queue according to the mapping relationship between the priority queue and the priority of the uplink message defined in the private managed entity (S101). In the present invention, the uplink messages mapped to the GEM PORTs in the GPON system can be flexibly scheduled under the N:M bridge-mapping service model of the GPON system, and it is a beneficial extension to the existing mode for scheduling an uplink message based on the GPON system.