Dynamic MSG3 Size Selection for Wireless Handover Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for configuring MSG3 size in wireless communication systems fail to balance handover delay and cell coverage effectively, especially in non-regularly shaped cell areas due to obstacles like buildings and walls, leading to suboptimal performance in both rural and urban scenarios.
Innovation Solution
A method where the serving network node transmits measurement information to the neighbor network node, allowing it to dynamically select an appropriate MSG3 size based on the signal quality, ensuring that each User Equipment (UE) receives a suitable MSG3 size for optimal handover, balancing latency and coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If a large MSG3 size is configured to reduce handover delay, then handover latency is reduced, but cell coverage deteriorates
Solution Approach 1:
The MSG3 size is made dynamic rather than fixed, allowing the network node to adjust the size based on real-time signal quality measurements. The network node determines MSG3 size by evaluating path loss and signal conditions, selecting between different size configurations to optimize both handover delay and cell coverage for each specific UE scenario.
Solution Approach 2:
Different MSG3 sizes are applied to different UEs based on their local signal conditions. Instead of using a uniform MSG3 size for all UEs in a cell, the network node evaluates individual UE measurements and assigns appropriate MSG3 sizes, allowing optimal performance in both coverage-limited and delay-limited scenarios.
2Area of stationary object
If a small MSG3 size is configured to extend cell coverage, then cell coverage is improved, but handover delay increases
Solution Approach 1:
The system dynamically selects MSG3 size based on signal quality conditions. When signal quality is poor (high path loss), a smaller MSG3 size is selected to ensure coverage. When signal quality is good, a larger MSG3 size is selected to reduce handover delay, thus adapting to varying conditions.
Solution Approach 2:
The MSG3 size parameter is changed based on measured signal conditions. The network node uses path loss measurements and signal quality indicators to select appropriate MSG3 size values, changing this parameter dynamically to balance coverage and delay requirements.
3Device complexity
If a fixed MSG3 size is used for all UEs, then system complexity is reduced, but performance adaptability deteriorates
Solution Approach 1:
The system uses a set of predefined MSG3 size parameters that can be selected based on conditions. Rather than implementing complex real-time calculation, the system changes between discrete parameter values (different MSG3 sizes) based on measured signal conditions, achieving adaptability with manageable complexity.
Solution Approach 2:
The network node uses feedback from UE measurements (path loss, signal quality) to determine the appropriate MSG3 size. This feedback mechanism allows the system to adapt to varying conditions without requiring complex algorithms, simply selecting from predefined size options based on measurement thresholds.
Data Source
AI summary
A method (400) in a radio network node (220) of a wireless communication system (200) for selecting a MSG3 size for a User Equipment (UE) (230) that is performing handover from a serving network node (210) to a neighbor network node (220) is disclosed. The method (400) comprises receiving (S402) 5 measurement information related to the UE (230) from the serving network node (210). The method (400) comprises selecting (S404) the MSG3 size based on the measurement information. The method (400) further comprises transmitting (S406) the MSG3 size to the UE (230), based on which UE related information is transmitted to the neighbor network node (220).