Cell Handover Capacity Indication for UE Storage Limits
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In radio communication systems, the existing cell handover methods face challenges in efficiently managing the capacity of radio parameters during conditional handover, leading to potential handover failures due to excessive storage requirements and limited capacity in User Equipment (UE), which affects user experience and handover performance.
Innovation Solution
A method and apparatus for cell handover that includes transmitting a handover request message with a capacity indication message to set an upper limit on the radio parameters, allowing the UE to receive configured radio parameters within a limited capacity, preventing handover command overflow and ensuring normal handover procedures by limiting the pre-configuration parameter capacity to 9 kBytes or less.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the handover command includes complete pre-configuration parameters from multiple potential target cells, then the handover performance and user experience are improved, but the storage capacity requirement in UE increases and may exceed the limited capacity
Solution Approach 1:
The patent segments the handover command by introducing a capacity indication message that divides the pre-configuration parameters into different capacity levels. The network can indicate whether to include full parameters (for single cell handover) or reduced parameters (for multiple cell handover), effectively segmenting the data transmission based on实际需求
Solution Approach 2:
The patent implements dynamic adjustment of the handover command capacity based on the number of potential target cells. When multiple cells are involved, the system dynamically reduces the parameter capacity to fit within UE limits, while still maintaining sufficient information for successful handover to the selected target cell
2Adaptability or versatility
If the pre-configuration parameter capacity is increased to support more handover options, then the adaptability of the system is improved, but the risk of command overflow and handover failure increases
Solution Approach 1:
The patent introduces a feedback mechanism through the capacity indication message in the handover command. The network feeds back the capacity requirement information to the UE, allowing the UE to adjust its parameter reception accordingly. This feedback loop ensures that the handover command always fits within UE capacity while maintaining system adaptability
Solution Approach 2:
The patent changes the parameter capacity dynamically based on the handover scenario. By modifying the capacity indication in the handover command according to the number of potential target cells, the system adapts the parameter size to match the actual need, preventing overflow while maintaining flexibility
Data Source
AI summary
Cell handover method and apparatus are provided. The method applied to a first base station includes: transmitting a handover request message, wherein the handover request message includes a capacity indication message of a pre-configuration parameter; receiving a handover request acknowledgement message, wherein the handover request acknowledgement message includes the pre-configuration parameter, and a capacity of the pre-configuration parameter is determined based on the capacity indication message; and transmitting a handover command based on the handover request acknowledgement message. The method applied to a second base station includes: receiving a handover request message, wherein the handover request message includes a capacity indication message of a pre-configuration parameter; generating a handover request acknowledgement message based on the handover request message, wherein the handover request acknowledgement message includes the pre-configuration parameter, and a capacity of the pre-configuration parameter is determined based on the capacity indication message; and transmitting the handover request acknowledgement message.