Super-Cell UE Mobility Routing via vRNC and HNBGW Coordination
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Solution Overview
Problem
Existing femtocell networks face challenges in efficiently managing mobility across super-cells, particularly in terms of interface compatibility and network complexity, leading to increased costs and limited scalability.
Innovation Solution
The implementation of a virtual radio network controller (vRNC) and a home nodeB gateway (HNBGW) architecture, which virtualizes and coordinates multiple small cells, enabling seamless mobility and reducing network complexity through a software-defined networking approach.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional femtocell network architecture is used to manage mobility across super-cells, then interface compatibility and network coverage are maintained, but network complexity and deployment costs increase
Solution Approach 1:
The patent introduces a mobility manager as an intermediary component that mediates between user equipment and the core network during mobility events. This mobility manager handles the complexity of super-cell mobility management, interface compatibility, and coordination between multiple femtocells, thereby maintaining reliability while preventing the complexity from propagating throughout the entire network architecture.
2Area of stationary object
If multiple individual femtocells are deployed to extend network coverage, then service coverage is improved, but network complexity and deployment costs increase
Solution Approach 1:
The patent merges multiple individual femtocells into a unified super-cell structure. This super-cell is managed as a single logical entity rather than multiple separate cells, which extends service coverage across a larger area while reducing network complexity by consolidating management functions and interface requirements.
3Productivity
If a virtual radio network controller architecture is implemented to coordinate small cells, then mobility efficiency is improved, but implementation complexity increases
Solution Approach 1:
The patent implements a virtual radio network controller that creates virtual representations of physical femtocells and their mobility states. This virtualization layer enables efficient mobility coordination and management by working with simplified virtual models rather than directly managing complex physical cell interactions, thereby improving mobility efficiency while containing implementation complexity within the virtualization layer.
Data Source
AI summary
Systems and methods are disclosed for a 3G gateway. In a first embodiment, a method is disclosed for a network, comprising: receiving a first relocation request message at a home nodeB gateway (HNBGW), the HNBGW coupled to an operator core network, the first relocation request message including a target super cell identifier and a user equipment (UE) identifier; sending a second relocation request message from the HNBGW to a coordinating node, the coordinating node identifier being the target super cell identifier; querying a lookup table at the coordinating node using the UE identifier to determine a target cell identifier; replacing, in the second relocation request message, the target super cell identifier with the target cell identifier to create a third relocation request message; and sending the third relocation request message to a target cell identified by the target cell identifier.