Hybrid Mesh-Cellular Network Architecture for Interference Management
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Solution Overview
Problem
Conventional MESH networks face issues with mobility support, reliability, and spectrum utilization flexibility, while cellular access networks lack sufficient reliability and flexibility in sensor networks, leading to interference and inadequate Quality of Service (QoS) guarantees.
Innovation Solution
A communication system integrating a MESH access network, a cellular access network, and a core network, where Distributed Service Centers (DSCs) and Local Service Centers (LSCs) manage clusters and local access networks, respectively, and a Network Service Center (NSC) authenticates and secures data transmission, coordinating interference and resource management across overlapping networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If MESH network uses common frequency band for communication, then device complexity is reduced, but reliability deteriorates due to interference from neighboring WiFi systems
Solution Approach 1:
The patent segments the network into independent clusters, each operating on dedicated frequency bands rather than sharing a common band. This segmentation isolates interference within clusters and allows frequency diversity across clusters, improving reliability while maintaining manageable device complexity through modular cluster architecture.
Solution Approach 2:
The patent introduces frequency band allocation as an additional dimension for managing network resources. By assigning different frequency bands to different clusters, the system transforms the single-dimension common frequency approach into a multi-dimensional resource allocation scheme, thereby reducing interference and improving reliability.
2Ease of operation
If MESH network adopts static security parameters, then ease of operation is improved, but reliability deteriorates due to insufficient security for mobile devices
Solution Approach 1:
The patent implements dynamic security parameters that can be updated and adjusted based on network conditions and device mobility. The cluster head manages security parameters dynamically, allowing the system to maintain ease of operation through automated management while improving security reliability through adaptive parameter updates.
Solution Approach 2:
The system incorporates feedback mechanisms where the cluster head monitors network conditions and device states, then adjusts security parameters accordingly. This feedback loop enables the system to maintain operational simplicity while responding dynamically to security requirements, thereby improving reliability without compromising ease of operation.
3Device complexity
If cellular access network operates independently, then device complexity is reduced, but spectrum utilization flexibility deteriorates
Solution Approach 1:
The patent merges MESH network and cellular network functionalities into a unified architecture where cluster heads in the MESH network also serve as access points in the cellular network. This merging allows the system to maintain relatively simple device complexity while achieving improved spectrum utilization flexibility through coordinated operation of both network types.
Solution Approach 2:
The cluster head devices are designed with multi-functionality, serving both MESH network coordination and cellular access functions. This universality allows the system to achieve spectrum utilization flexibility through a single device performing multiple roles, rather than requiring separate specialized devices for each function.
4Device complexity
If clusters are independent of each other, then device complexity is reduced, but adaptability deteriorates as End Points in different clusters cannot communicate
Solution Approach 1:
The patent introduces cluster heads as intermediary devices that facilitate communication between End Points in different clusters. The cluster heads manage inter-cluster routing and coordination, allowing End Points to communicate across clusters without requiring complex direct communication capabilities, thereby maintaining low device complexity while improving adaptability.
Data Source
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AI summary
The present disclosure provides in some embodiments a communication system, a communication network, a communication device and a communication method. The communication system includes a self organizing MESH access network, a cellular access network, a backhaul network and a core network. The MESH access network is connected to the core network through the backhaul network, and the cellular access network is connected to the core network through the backhaul network.