Successful Handover Report Recording Across LTE and NR Cells
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Solution Overview
Problem
Existing wireless communication technologies do not support the recording of successful handover reports (SHR) in scenarios where a terminal device switches from a Long Term Evolution (LTE) cell to a New Radio (NR) cell or vice versa.
Innovation Solution
A method and device for recording and reporting SHR, where a terminal device receives configuration information to record SHR after a successful handover from an LTE cell to an NR cell or from an NR cell to an LTE cell, based on specific configuration information and trigger conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If SHR recording is limited to NR-to-NR handover scenarios, then the system complexity remains low, but the adaptability to different handover scenarios is insufficient
Solution Approach 1:
The patent extends the SHR recording function to support multiple handover scenarios (NR-to-NR, LTE-to-NR, NR-to-LTE) using a unified recording mechanism. The terminal device applies the same SHR recording procedure across different RAT types and handover directions, making the system multi-functional without requiring separate recording mechanisms for each scenario.
Solution Approach 2:
The patent introduces configurable parameters (sourceDAPS-FailureReporting, targetDAPS-FailureReporting) that control SHR recording behavior based on the specific handover scenario. By changing these parameter values according to the source and target cell types, the system adapts to different scenarios while maintaining a consistent underlying mechanism.
2Adaptability or versatility
If SHR recording is extended to support LTE-to-NR and NR-to-LTE scenarios, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The terminal device implements a universal SHR recording mechanism that handles LTE-to-NR, NR-to-LTE, and NR-to-NR handovers through the same procedural framework. The device checks configuration parameters and executes appropriate recording actions without requiring separate processing paths for each inter-RAT scenario.
Solution Approach 2:
The patent uses configuration parameters (sourceDAPS-FailureReporting, targetDAPS-FailureReporting) as intermediaries that carry information about the handover scenario type. These parameters mediate between the diverse handover scenarios and the unified SHR recording mechanism, enabling the terminal device to adapt its behavior based on the specific scenario without increasing structural complexity.
Data Source
AI summary
A method for recording and reporting a successful handover report (SHR) in a radio access technology (RAT) includes: receiving SHR configuration information sent by a network-side device in a source cell, wherein the SHR configuration information is used for instructing the terminal device to record the SHR according to the SHR configuration information after a successful handover of the terminal device from the source cell to a target cell, the source cell is a long term evolution (LTE) cell, and the target cell is a new radio (NR) cell, or the source cell is an NR cell, and the target cell is an LTE cell; and in response to the successful handover of the terminal device from the source cell to the target cell, recording the SHR based on the SHR configuration information.