Virtual DSLAM Segmentation for Multi-NSP Access Network Sharing
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Solution Overview
Problem
Existing access networks are not designed to support multiple network service providers (NSPs) and allow for flexible configuration of access nodes, making it difficult to share and manage networks independently in a wholesale scenario.
Innovation Solution
Implementing logic-independent virtual units in Digital Subscriber Line Access Multiplexers (DSLAM), Optical Network Units (ONU), Optical Line Terminals (OLT), and Base Stations that process packets according to predefined configurations, enabling separate protocols and interfaces for different NSPs, allowing for flexible protocol support and independent management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing access nodes are used, then network infrastructure is maintained, but the network cannot be shared among multiple NSPs and cannot be managed independently
Solution Approach 1:
The access node is segmented into multiple logic-independent virtual units, each capable of being independently configured and managed. This segmentation enables the network to be shared among multiple NSPs while maintaining independent management capability, as each virtual unit can be allocated to different NSPs without affecting others.
Solution Approach 2:
The access node is designed with multi-functionality to support multiple NSPs and various protocols simultaneously. The virtual units can be configured to provide different services and protocols, making the access node universal enough to handle diverse NSP requirements while maintaining a unified physical infrastructure.
2Adaptability or versatility
If flexible protocol support is implemented, then adaptability to different NSP requirements is improved, but device complexity increases
Solution Approach 1:
The protocol support is segmented into separate virtual units, each specialized for specific protocols or NSP requirements. This allows flexible protocol support without requiring the entire access node to be complex, as only the relevant virtual units need to be activated and configured for each NSP.
Solution Approach 2:
The access node employs dynamic configuration capabilities where virtual units can be activated, deactivated, or reconfigured based on NSP requirements. This dynamic approach enables flexible protocol support without permanent structural complexity, as the system adapts its configuration rather than maintaining all possibilities structurally.
Data Source
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AI summary
A Digital Subscriber Line Access Multiplexer, DSLAM, includes a Digital Subscriber Line interface unit for processing Physical Layer and Data Link Layer of the Digital Subscriber Line; at least two virtual DSLAM units adapted to simulate DSLAM to process a packet from the DSL interface unit; and a backhaul interface unit adapted to receive a packet processed by the DSLAM unit, and to send a packet from an access edge node or carrier equipment to the virtual DSLAM unit for processing. The invention further discloses an Optical Network Unit, an Optical Line Terminal and a Base Station.