Dynamic Alloc-ID Assignment for PON Registration Efficiency
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Solution Overview
Problem
The conventional method for managing Alloc-IDs in Optical Network Units (ONUs) for different upstream rates in Passive Optical Networks (PONs) results in low use efficiency of Transmission containers (T-CONTs due to static reservation, lacking flexibility and efficiency.
Innovation Solution
A method and device that dynamically configure Alloc-IDs based on the Alloc-ID configuration table, allowing ONUs to determine the target Alloc-ID corresponding to their supported upstream rates, enabling flexible allocation and reducing unnecessary reservations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Alloc-IDs are statically reserved for each upstream rate and rate combination, then registration coverage is ensured, but T-CONT use efficiency decreases
Solution Approach 1:
The patent implements dynamic Alloc-ID assignment where the OLT allocates Alloc-IDs based on real-time ONU registration requests and upstream rate requirements, rather than static pre-reservation. The OLT receives registration requests from ONUs, determines the required upstream rate, and assigns an appropriate Alloc-ID from available pools, allowing flexible resource utilization while ensuring all rate combinations are covered.
Solution Approach 2:
The patent creates a universal Alloc-ID pool that serves multiple upstream rate combinations. Instead of dedicating specific Alloc-IDs to specific rate combinations, a shared pool of Alloc-IDs is maintained that can be assigned to any ONU regardless of its upstream rate requirement, making the same resource serve multiple functions and rate scenarios.
2Adaptability or versatility
If more Alloc-IDs are reserved to cover all rate combinations, then registration capability is improved, but resource waste increases
Solution Approach 1:
The patent pre-establishes pools of Alloc-IDs that can be used for registration, but these pools are not pre-assigned to specific rate combinations. The OLT prepares available Alloc-ID pools in advance and assigns them dynamically when registration requests arrive, ensuring registration capability is ready while avoiding premature resource commitment that would cause waste.
Solution Approach 2:
The patent changes the allocation parameter from fixed one-to-one mapping (specific Alloc-ID to specific rate combination) to flexible many-to-many mapping (multiple Alloc-IDs can serve multiple rate combinations). The OLT adjusts Alloc-ID assignment based on the actual upstream rate parameter of each registering ONU, optimizing resource utilization while maintaining adaptability to different rate requirements.
Data Source
AI summary
Provided are a method and device for responding to a registration request. The method includes: an Alloc-ID configuration table sent by an Optical Line Terminal (OLT) is received, the Alloc-ID configuration table including corresponding relationships between Alloc-IDs and upstream rates; the Alloc-ID configuration table is parsed to determine a target Alloc-ID from the corresponding relationships between the Alloc-IDs and the upstream rates, the rates corresponding to the target Alloc-ID including the rate supported by an Optical Network Unit (ONU); and a registration request sent by the OLT is responded to based on the target Alloc-ID, the registration request carrying the target Alloc-ID.