Relay Path Switching Across gNBs With Preconfigured Target Links
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Solution Overview
Problem
Existing communication systems only support path switching between direct and indirect links without changing the network device communicating with the remote terminal device, leading to potential connection failures during inter-gNB path switching scenarios.
Innovation Solution
A method and apparatus for path switching that includes receiving and sending switching configuration information to execute path switching based on a target relay terminal device, allowing the first terminal device to establish connections with the target relay terminal device and determine if the current serving cell and network device match the target configuration, and adjust accordingly to improve path switching success rates and reduce communication delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If path switching is executed between direct link and indirect link without changing the network device, then the switching process is simple, but connection failures occur during inter-gNB path switching scenarios
Solution Approach 1:
The patent applies preliminary action by having the network device pre-configure target cell information and target gNB information before path switching occurs. The terminal device receives and stores this configuration information in advance, so when path switching is needed, the terminal can quickly execute the switch without complex real-time negotiations, thereby improving reliability while keeping the process relatively simple.
Solution Approach 2:
The patent introduces switching configuration information as an intermediary that carries target cell identifiers and target gNB identifiers. This intermediary information structure enables the terminal device to understand and execute path switching to different network devices without requiring complex direct negotiation between terminal and network device, thus improving success rate while maintaining simplicity.
2Productivity
If the terminal device executes path switching with target relay terminal device, then communication efficiency is improved, but communication delay increases during the switching process
Solution Approach 1:
The network device sends target cell information and target relay terminal device information to the terminal device in advance through switching configuration information. This preliminary configuration allows the terminal to prepare for switching beforehand, reducing the actual switching delay when path change is needed, while maintaining improved communication efficiency through proper relay terminal selection.
Solution Approach 2:
The patent implements feedback mechanisms where the terminal device reports its status and the network device adjusts switching configuration information accordingly. This feedback loop enables optimized path selection that balances communication efficiency gains against switching delay, ensuring that relay terminal switching provides net benefit.
Data Source
AI summary
A switching method, executed by a first terminal device, includes: receiving switching configuration information sent by a first network device; and executing path switching according to the switching configuration information and based on a target relay terminal device.