5G Dual-Connectivity Handover Configuration for CHO and PSCell Changes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing 5G networks face challenges in handling frequent cell handovers in dual connectivity scenarios due to the lack of support for conditional handover (CHO) and conditional primary secondary cell (PSCell) addition/change (CPA/CPC), leading to potential failures in selecting appropriate candidate cells, which affects mobility and throughput efficiency.
Innovation Solution
The implementation of a communication method that includes configuring terminal devices with first and second execution conditions to evaluate CHO and CPA/CPC candidate cells, enabling the selection of appropriate cells for handover in dual connectivity scenarios, thereby improving handover efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conditional handover (CHO) and conditional primary secondary cell (PSCell) addition/change (CPA/CPC) are not supported in dual connectivity scenarios, then the network configuration remains simple, but handover efficiency deteriorates and candidate cell selection fails
Solution Approach 1:
The patent segments the handover configuration into two distinct parts: first execution conditions for evaluating CHO candidate cells and second execution conditions for evaluating CPA/CPC candidate cells. This segmentation allows the terminal device to handle different handover types independently, improving handover efficiency without overwhelming the device with a single complex configuration system.
Solution Approach 2:
The patent implements preliminary action by pre-configuring multiple execution conditions and candidate cells before handover is needed. The terminal device receives and stores first execution conditions for CHO and second execution conditions for CPA/CPC in advance, enabling rapid decision-making during actual handover events without complex real-time processing.
2Area of stationary object
If frequent cell handovers occur in 5G networks with higher frequency bands and smaller cell radius, then network coverage is improved, but handover frequency increases and network operation complexity worsens
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple candidate cells and their corresponding execution conditions before handover events occur. This allows the terminal device to efficiently handle frequent handovers in dense 5G networks without requiring complex real-time decision-making, as the evaluation framework is already in place.
Solution Approach 2:
The patent implements dynamics by enabling the terminal device to dynamically evaluate different execution conditions based on current network conditions. The device can adaptively select between CHO and CPA/CPC pathways and adjust candidate cell selection based on measured parameters, providing flexible handover management in response to changing network conditions.
3Reliability
If conditional handover evaluation is implemented without distinguishing between CHO and CPA/CPC candidate cells, then the evaluation process is simplified, but handover reliability deteriorates due to inappropriate candidate selection
Solution Approach 1:
The patent segments the candidate cell evaluation into distinct pathways: first execution conditions specifically for CHO candidate cells and second execution conditions specifically for CPA/CPC candidate cells. This segmentation ensures that each handover type is evaluated according to its specific requirements, improving handover reliability while maintaining manageable evaluation complexity through clear separation of concerns.
Solution Approach 2:
The patent applies local quality by tailoring the evaluation conditions to the specific requirements of each handover type. Different execution conditions are applied locally to different candidate cell types, ensuring that each evaluation process uses the most appropriate criteria for that specific handover scenario, thereby improving overall handover reliability.
Data Source
AI summary
Provided are a communication method and apparatus, and a device, a storage medium, a chip, a product and a program. The method includes: a terminal device receives first configuration information, wherein the first configuration information includes at least one first execution condition and at least one second execution condition; and the at least one first execution condition is used for evaluating at least one conditional handover (CHO) candidate cell, and the at least one second execution condition is used for evaluating at least one conditional primary secondary cell addition/conditional primary secondary cell change (CPA/CPC) candidate cell.