Access Device Dynamic Migration Between TDM and Packet Networks
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Solution Overview
Problem
Legacy telecommunication systems face challenges in migrating subscribers from traditional TDM networks to next-generation packet networks due to the need for parallel maintenance of legacy and new access equipment, leading to costly and inefficient migration processes.
Innovation Solution
A single access device that allows dynamic migration of subscriber lines between multiple transport networks, enabling line-by-line and call-by-call switching between different transport networks and service providers, using a media switch and call control system to manage connections and trigger events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If packet network access devices are designed solely for packet network access, then packet network connectivity is improved, but legacy TDM network access capability is lost, requiring parallel maintenance of legacy equipment
Solution Approach 1:
The access device is designed with multi-functionality to support both legacy TDM network access and next-generation packet network access through a single device. The device includes both TDM interface cards and packet network interface cards, along with a media switch that can dynamically connect subscriber lines to either TDM or packet network interfaces based on service requirements. This universal design eliminates the need for parallel legacy and new equipment, reducing device complexity while maintaining both access capabilities.
2Reliability
If legacy access equipment is maintained in parallel with next-generation access equipment, then service continuity is ensured, but capital and operational costs increase
Solution Approach 1:
The invention merges legacy TDM access functionality and next-generation packet network access functionality into a single unified access device. The device includes a media switch that can dynamically allocate subscriber lines to either TDM interface cards or packet network interface cards. This consolidation reduces the need for maintaining separate parallel equipment infrastructures, thereby reducing capital and operational costs while ensuring service continuity through flexible resource allocation.
3Adaptability or versatility
If physical migration of subscriber lines from legacy equipment to packet-network access device is required, then network modernization is achieved, but migration complexity and cost increase
Solution Approach 1:
The access device incorporates a media switch that enables dynamic, software-controlled connection of subscriber lines to either TDM or packet network interfaces. This dynamic allocation allows for logical migration of services without requiring physical relocation of subscriber lines. The migration process is simplified to software configuration changes rather than physical reconnection, significantly reducing migration complexity and cost while achieving network modernization.
Data Source
AI summary
An access device enables dynamic migration of telecommunications subscribers between multiple transport networks and call services providers. The access device stores access patterns that associate a subscriber with a call server and define trigger events. The access device monitors the trigger events. The access device associates the subscriber with a different call server in accordance with the trigger events and the access patterns. The trigger events can be dynamic or static, can be on a line-by-line or call-by-call basis, and can be selected by a user or implemented by an operator. In this manner, the access device allows graceful migration of voice services from a legacy network to a next-generation packet network with lower capital and ownership costs.