Link Switching Method for Communication Devices
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Solution Overview
Problem
In service transmission between terminal-to-terminal or terminal-to-network services, link failures result in significant latency during reestablishment processes, causing service interruptions.
Innovation Solution
A link switching method where, upon failure of a first link, a second link is established between communication devices, allowing service transmission to continue with reduced latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If link failure triggers application layer reestablishment, then service transmission can be restored, but latency increases significantly causing long service interruptions
Solution Approach 1:
The patent pre-establishes a second link alongside the first link before failure occurs. When link failure is detected, the second link is already ready for immediate activation, eliminating the need for time-consuming reestablishment procedures and significantly reducing latency during service restoration
Solution Approach 2:
The second link acts as an intermediary backup path that takes over service transmission when the first link fails. This intermediary connection enables seamless failover without requiring the application layer to initiate complex reestablishment procedures, thus reducing both latency and service interruption time
Data Source
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AI summary
Disclosed in embodiments of the present application are a link switching method and a communication device. The method includes: in the case that service transmission cannot be performed using a first link between a first communication device and a second communication device, the first communication device establishes a second link between the first communication device and the second communication device; and the first communication device performs the service transmission using the second link, wherein the communication devices on the first link and the second link are different. The method and communication device of the embodiments of the present application are beneficial to reduce the latency in resumption of service transmission.