Convergence Gateway Integrating Multi-RAT Core Network Nodes
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Solution Overview
Problem
Current network architectures require separate infrastructure for each radio access technology (RAT), leading to increased complexity and expense due to the need for multiple core network nodes, which hinders the transition to a unified IP core and reduces operational efficiency.
Innovation Solution
A convergence gateway system that integrates multiple RATs, such as LTE, 3G, 2G, and Wi-Fi, using interfaces like S2 and S1 to provide connectivity and mobility, enabling local breakout of IP traffic and reducing the need for duplicate core network infrastructure by routing traffic through the Internet instead of dedicated core nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate core network nodes are maintained for each radio access technology (2G, 3G, 4G), then compatibility with legacy voice calling is ensured, but network complexity and operational expenses increase significantly
Solution Approach 1:
The patent merges multiple separate core network nodes (2G MSC, 3G MSC, 4G MME) into a single unified core network node that can handle multiple radio access technologies. This consolidation maintains legacy voice calling compatibility through integrated circuit-switched and packet-switched domains while reducing network complexity by eliminating redundant infrastructure.
Solution Approach 2:
The unified core network node is designed with multi-functional capabilities to serve multiple RATs simultaneously. It incorporates both circuit-switched domain (for legacy voice) and packet-switched domain (for data and VoLTE) functionalities, allowing a single node to perform roles previously requiring separate dedicated nodes for each technology generation.
2Reliability
If both 2G/3G core network and parallel LTE core network are provided, then voice calling compatibility is maintained, but capital expenditures and operational expenses increase
Solution Approach 1:
The patent combines parallel 2G/3G core network infrastructure with LTE core network into a unified structure. Instead of maintaining separate infrastructure stacks, the solution integrates circuit-switched and packet-switched domains within a single core network node, reducing the quantity of network resources required while preserving voice calling support across all generations.
Solution Approach 2:
The patent enables gradual phase-out of legacy 2G/3G infrastructure by recovering and reusing network resources. The unified core network node can handle legacy voice traffic while simultaneously supporting LTE services, allowing operators to decommission old infrastructure at their own pace without service disruption.
3Adaptability or versatility
If multiple core network nodes are maintained for different RATs, then service coverage is ensured, but transition to unified IP core is hindered
Solution Approach 1:
The unified core network node implements a universal architecture that provides multi-RAT service coverage through integrated circuit-switched and packet-switched domains. This universal design enables seamless service coverage across 2G, 3G, and 4G networks while presenting a simplified single-node architecture that facilitates transition to unified IP core.
Data Source
AI summary
Systems, methods and computer software are disclosed for providing a Diameter multifold message. In one embodiment a method is disclosed, comprising: providing a multifold-command Attribute Value Pair (AVP), the multifold-command AVP including an AVP code, a set of VMP flags, an AVP length and a vendor ID; including the AVP in a Capabilities Exchange Request (CER) command for a Diameter stack supporting multiplexing of commands in one message; and using the AVP to combine messages from multiple applications running on a single Diameter node and multiple commands from a single application.