Duplicated Connection for Seamless Data Transmission
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Solution Overview
Problem
Communication systems face reliability issues due to failures in connections between Radio Access Network (RAN) nodes and User Equipment (UE), leading to data loss and unreliable data transmission, particularly in critical applications requiring high reliability like Smart Grids and Intelligent Traffic Systems.
Innovation Solution
Implementing a method where a network node establishes a duplicated connection with a terminal device, allowing seamless data transmission by switching to a secondary connection when the primary connection fails, utilizing dual connectivity and carrier aggregation to ensure continuous data flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single connection is used between network node and terminal device, then device complexity is reduced, but reliability deteriorates due to connection failures and data loss
Solution Approach 1:
The patent implements connection duplication by creating a second connection as a copy of the first connection between network nodes and terminal devices. When the primary connection fails, the duplicate connection serves as a backup to maintain data transmission, thereby improving reliability without requiring fundamentally new architectural approaches
Solution Approach 2:
The system establishes a second connection in advance before the first connection fails. This preliminary action ensures that when connection failure occurs, an alternative path is already available, eliminating data loss and ensuring continuous transmission without requiring complex real-time switching mechanisms
2Reliability
If multiple connections are established for redundancy, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent merges the functionality of multiple connections under a unified management framework where the second network node handles both the first and second connections to the terminal device. This consolidation approach allows redundancy while avoiding the complexity of completely independent connection management systems
Solution Approach 2:
The second network node is designed with multi-functionality, serving as both a primary network node for the second connection and as a backup for the first connection. This universal design allows a single node to fulfill multiple roles, reducing overall network complexity while maintaining reliability
3Reliability
If connection failure detection and switching is implemented, then reliability is improved, but loss of time increases due to failure detection and reconnection processes
Solution Approach 1:
The second connection is established in advance before failure occurs, so when the first connection fails, switching can happen immediately without detection and setup delays. The backup path is pre-configured and ready for instant activation
Solution Approach 2:
The system maintains continuous data transmission capability by having both connections active simultaneously. When failure occurs, the transition from first connection to second connection is seamless, ensuring uninterrupted data flow and minimizing any potential loss of time
Data Source
AI summary
A method for transmission reliability comprises receiving, from a first network node at a second network node, a message indicating that a first connection between the first network node and a terminal device has failed. The message comprises an indication to initiate a second connection with the terminal device from the second network node. The method further comprises establishing, at the second network node, the second connection with the terminal device based on the message. The second network node comprises a third connection established before the first connection failed. The first connection carries data transmitted in the third connection before the first connection failed, and the second connection carries data transmitted in the third connection after the first connection failed. The method for interference coordination utilizes duplicated transmissions to secure data transmission and to prevent data loss in an unexpected system failure.