Wireless Communication Handover Reporting for Direct and Relay Links
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, particularly in scenarios involving L2 U2N relay, there is a lack of appropriate reporting of radio link handover failure information to the network, leading to potential misunderstandings and incorrect optimization, which can result in communication interruptions and reduced service quality.
Innovation Solution
A method and device for wireless communications that involves configuring different timers and message formats based on whether the radio link is direct or indirect, using SRB messages to indicate radio link handover failure, and providing specific failure information to distinguish between direct and indirect paths, thereby facilitating accurate network optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the network uses a unified handover failure reporting mechanism for both direct and indirect paths, then the system complexity is reduced, but the network optimization accuracy deteriorates due to inability to distinguish failure causes
Solution Approach 1:
The patent segments the handover failure reporting mechanism into two distinct paths: direct path reporting and indirect path reporting. Each path has its own specific reporting format and timer configuration. This segmentation allows the network to accurately identify whether a handover failure occurred on the direct link or through the relay node, enabling precise optimization without increasing overall system complexity.
2Ease of manufacture
If the network optimizes handover parameters without knowing the path type, then the optimization process is simplified, but the service quality deteriorates due to incorrect optimization decisions
Solution Approach 1:
The patent implements a feedback mechanism where the UE reports path type information (direct or indirect) along with handover failure details to the network. This feedback enables the network to make informed optimization decisions specific to each path type. For indirect paths, the network can optimize relay-related parameters, while for direct paths, it can optimize traditional handover parameters, thereby maintaining service quality.
3Ease of manufacture
If the network assumes all handover failures occur on direct paths, then the optimization focus is simplified, but the communication reliability deteriorates due to missed relay-related optimization opportunities
Solution Approach 1:
The patent applies local quality by creating specialized reporting and optimization procedures tailored to each path type. Indirect path failures receive specific attention with dedicated reporting formats that highlight relay involvement, allowing the network to apply appropriate optimization strategies for relay scenarios rather than using a one-size-fits-approach.
Data Source
AI summary
A first signaling is received, the first signaling being used to indicate a transition from a first radio link to a second radio link. The first radio link is a direct path. The first signaling is used for configuring a first timer. In response to expiration of the first timer, a radio link handover failure is determined and an RRC re-establishment is initiated. A first message is transmitted. The reception of the first signaling can help with network optimization.