Packet Duplication Failure Reporting for Wireless Handover
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Solution Overview
Problem
Communication failures, such as radio link failures, pose challenges in wireless communications, particularly in multicarrier systems, as existing systems struggle to effectively compensate for these failures.
Innovation Solution
Systems and methods are developed to generate and transmit radio link failure reports to devices, allowing them to adjust configuration parameters and facilitate more effective communication by promoting handovers and minimizing further errors based on identified issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radio link failure compensation mechanisms are implemented in existing wireless communication systems, then communication reliability may be improved, but system complexity increases and the compensation effectiveness remains insufficient
Solution Approach 1:
The patent implements feedback mechanisms where the wireless device sends radio link failure reports to the network device, containing information about the failure cause and packet duplication status. The network device uses this feedback to adjust configuration parameters dynamically, creating a closed-loop system that improves reliability without requiring overly complex predetermined compensation mechanisms.
Solution Approach 2:
The patent changes configuration parameters based on failure analysis. When packet duplication is detected as a contributing factor, the network device adjusts parameters such as packet duplication activation status, transmission resources, or handover thresholds. This dynamic parameter adjustment resolves the contradiction by adapting the system to actual failure conditions rather than maintaining fixed complex compensation structures.
2Reliability
If packet duplication is used to compensate for communication failures, then communication reliability improves, but the risk of further errors during handover increases
Solution Approach 1:
The patent applies preliminary anti-action by having the network device send a handover command that explicitly deactivates packet duplication before the handover execution. This preemptive measure prevents the harmful interaction between packet duplication and handover procedures that could cause additional errors, while still maintaining communication reliability through the handover process itself.
Solution Approach 2:
The network device performs preliminary analysis of the radio link failure report to determine whether packet duplication was active and contributed to the failure. Based on this preliminary assessment, the device prepares appropriate configuration adjustments and handover commands in advance, preventing potential handover errors before they occur.
3Adaptability or versatility
If configuration parameters are adjusted based on failure analysis, then communication resilience improves, but the time required for parameter adjustment and handover increases
Solution Approach 1:
The patent implements partial action by adjusting only the specific configuration parameters relevant to the detected failure cause, rather than reconfiguring the entire communication system. When packet duplication is identified as a factor, only duplication-related parameters are modified, leaving other stable parameters unchanged. This selective approach maintains communication resilience while minimizing the time loss associated with comprehensive parameter adjustments.
Data Source
AI summary
Systems, apparatuses, and methods are described for wireless communications. Devices may exchange information regarding a radio link failure and/or a handover. The information may comprise a radio link failure report which may comprise an indication of packet duplication.