D2D Tunnel Establishment Between Small Cells
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Solution Overview
Problem
Building a wire backhaul network of small cells in a city is time-consuming and labor-intensive, with geographic and environmental factors adding complexity.
Innovation Solution
A method and system for device-to-device (D2D) tunnel establishment between small cells, where a wireless backhaul management device facilitates matching, authentication, and connection testing between small cells to establish D2D tunnels, allowing for wireless or wired transmission of messages to the core network, and enabling packet packaging and unpackaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wire backhaul network is built for small cells, then reliable message transmission to core network is achieved, but the process is time-consuming and labor-intensive
Solution Approach 1:
The patent replaces the traditional mechanical wire-based backhaul network with a wireless D2D tunneling system. Small cells establish direct wireless connections through device-to-device tunneling, eliminating the need for physical cable installation while maintaining reliable message transmission to the core network via the wireless backhaul management device.
Solution Approach 2:
The system enables small cells to autonomously establish D2D tunnels and manage their own backhaul connections. The wireless backhaul management device facilitates the process by matching small cells, authenticating connections, and establishing tunnels, but the small cells independently manage their communications without requiring manual wire deployment.
2Reliability
If a wire backhaul network is built for small cells, then stable connection is achieved, but labor cost and time consumption increase
Solution Approach 1:
The patent substitutes physical wire-based infrastructure with wireless D2D tunneling technology. Small cells communicate directly through wireless tunnels managed by the wireless backhaul management device, eliminating labor-intensive cable installation while maintaining stable connections through authentication and connection testing procedures.
Solution Approach 2:
The system performs preliminary actions by pre-establishing matching between small cells based on discovery responses, conducting authentication procedures before connection establishment, and testing connections in advance. This prepares the network infrastructure beforehand, ensuring stability while accelerating deployment.
3Adaptability or versatility
If geographic and environmental factors are considered in wire network building, then adaptive deployment is achieved, but complexity increases
Solution Approach 1:
The patent replaces complex wire-based network configuration with wireless D2D tunneling. The wireless backhaul management device handles geographic and environmental adaptability through automated matching and authentication processes, reducing the complexity of manual network configuration while maintaining deployment flexibility.
Data Source
AI summary
Disclosed are a method and a system of device-to-device tunnel establishment between small cells, applied to a wireless backhaul management device, a first small cell and a second small cell. The method comprises: matching the first small cell and the second small cell according to a first discovery response and a second discovery response; submitting a match report; replying with a match report response; conducting a D2D connection authentication procedure between the second small cell and the first small cell; wirelessly connecting the second small cell and the first small cell, conducting a connection test and submitting a connection test report; replying with a D2D tunnel establishment decision according to the connection test report; and establishing a D2D tunnel between the second small cell and the first small cell.