Handover to Energy Saving Network via UE Preference
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems lack methods to identify and select between new cells and legacy cells during handover, particularly in regards to energy saving network techniques.
Innovation Solution
The implementation of methods and apparatuses that allow User Equipment (UE) to transmit preferences for handover to base units, including preferences for new cells implementing energy saving techniques or legacy cells, and for specific states of new cells such as sleep or non-sleep states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If handover is performed without UE preference indication, then handover process is simple, but network energy saving cannot be optimized
Solution Approach 1:
The UE capability indication is transmitted in advance before handover execution, allowing the network to pre-determine the appropriate target cell based on energy saving requirements. This preliminary action enables the network to select target cells that are in sleep state or support energy saving features, optimizing energy consumption without complicating the actual handover execution process.
Solution Approach 2:
The patent introduces a new parameter (UE capability indication for energy saving support) that changes the handover selection criteria. By adding this parameter to the handover signaling, the network can differentiate between UEs that support energy saving features and those that don't, enabling targeted energy optimization strategies without fundamentally altering the handover mechanism.
2Loss of energy
If UE prefers new cells with energy saving techniques, then network energy efficiency improves, but compatibility with legacy cells is reduced
Solution Approach 1:
The handover target selection becomes dynamic based on UE capability indications. The network can adaptively choose between new cells with energy saving features and legacy cells depending on the UE's expressed preferences and current network conditions. This dynamic approach allows the system to maximize energy efficiency for capable UEs while maintaining compatibility with legacy UEs that cannot utilize energy saving features.
Solution Approach 2:
Different handover strategies are applied locally based on UE type. UEs that support energy saving techniques receive handover preferences for new cells with energy saving features, while legacy UEs continue to use traditional handover procedures. This localized differentiation allows the network to optimize energy consumption for supported UEs without compromising service for legacy UEs.
3Loss of energy
If UE provides detailed handover preferences, then energy saving optimization improves, but signaling overhead increases
Solution Approach 1:
The patent extracts only the essential capability information needed for energy saving optimization (support for energy saving features and state preferences) from the full UE capability set. By transmitting only these specific, relevant capability indications rather than complete UE capability information, the signaling overhead is minimized while still providing sufficient information for the network to make energy-efficient handover decisions.
Data Source
AI summary
Methods and apparatuses for handover with new cell being involved are disclosed. A base unit comprises a processor; and a transceiver coupled to the processor, wherein, the processor is configured to receive, via the transceiver, a preference of handover of a UE for target base unit; and perform handover of the UE according to the preference of handover of the UE.