Mobile Core Cellular Network Topology for Redundant Backhaul
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Solution Overview
Problem
Conventional cellular communication networks with stationary cores face challenges in efficiently managing and securing communication between mobile base stations, particularly in terms of authentication, backhauling, and redundancy, especially when dealing with high-volume content and large user populations.
Innovation Solution
The implementation of a cellular communication system with multiple mobile cores that utilize GRE tunnels and MBSFN channels, along with DFS and Time Division algorithms, to establish a network topology that allows for secure, efficient, and redundant communication links between mobile stations and base stations, reducing the reliance on stationary cores for backhauling and enabling encrypted communication within a campus network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single stationary core is used to serve multiple base stations, then network management is simplified, but the system lacks redundancy and mobility support
Solution Approach 1:
The patent divides the single stationary core into multiple mobile cores that can be distributed across different locations. Each mobile core serves a specific group of base stations, transforming the centralized architecture into a distributed one. This segmentation provides redundancy because if one mobile core fails, other mobile cores continue to operate, while also maintaining manageable complexity through modular deployment
2Adaptability or versatility
If mobile base stations are deployed, then network mobility and flexibility are improved, but authentication and security management become more complex
Solution Approach 1:
The patent implements a universal authentication mechanism where mobile cores perform multiple functions including authentication, authorization, and key management for mobile base stations. This multi-functional approach simplifies the overall system by consolidating security management tasks into the mobile cores themselves, rather than requiring separate dedicated authentication infrastructure
3Reliability
If GRE tunnels are established between mobile cores, then secure communication is achieved, but backhauling resources are consumed
Solution Approach 1:
The patent introduces GRE tunnels as intermediary secure communication channels between mobile cores and base stations. These tunnels encrypt traffic at the network layer, providing security without requiring changes to higher-layer applications. The tunnels efficiently utilize existing backhauling infrastructure by operating at a lower protocol level, minimizing resource overhead
Data Source
AI summary
A cellular communication system comprising a population of cellular communication network nodes comprising a stationary core, a plurality of base stations, and at least one node having mobile station functionality; and a client tunneling functionality co-located with the node having mobile station functionality which is operative to use network topology information obtained via the mobile station functionality to initiate generation of a tunnel having a first end at the node and a second far end at the stationary core.