Dynamic UE Capability Sharing Across Cellular Bands and Cells
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Solution Overview
Problem
Existing wireless cellular networks fail to efficiently utilize UE capabilities across activated and non-activated cells or bands, leading to underutilization of resources.
Innovation Solution
A mechanism for sharing UE capabilities from non-activated, non-configured, or non-scheduled cells or bands to activated ones, allowing for the recycling and reallocation of these capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UE capabilities are defined per band or per cell and cannot be shared across deactivated cells, then the UE can maintain simple capability management, but UE capability utilization efficiency deteriorates
Solution Approach 1:
The patent merges UE capabilities across multiple cells by introducing a capability sharing mechanism that allows the UE to indicate shared capabilities to the base station. When a cell is deactivated, its capabilities are merged with other activated cells, enabling the UE to receive PDSCH in multiple activated cells simultaneously. This resolves the contradiction by combining previously separate capability sets into a unified shared capability structure.
Solution Approach 2:
The patent implements dynamic capability sharing where the UE can flexibly indicate which capabilities are shared and under what conditions. The capability sharing indication can be dynamically configured based on cell activation states, allowing the system to adapt capability allocation in real-time. This dynamic approach enables efficient utilization while maintaining manageable complexity through conditional sharing rules.
2Productivity
If UE capabilities cannot be shared across deactivated cells, then capability management remains simple, but resource allocation efficiency deteriorates
Solution Approach 1:
The patent introduces a feedback mechanism where the UE provides capability sharing indication information to the base station. This feedback allows the base station to understand which capabilities can be shared across deactivated cells and adjust resource allocation accordingly. The feedback loop enables efficient resource allocation by informing the network of the UE's capability sharing intentions and receiving configurations based on this information.
Solution Approach 2:
The patent applies preliminary action by having the UE indicate capability sharing information in advance before actual transmission occurs. The UE can pre-configure which capabilities are shared and under what conditions, allowing the base station to prepare appropriate configurations beforehand. This preliminary indication mechanism enables efficient resource allocation without requiring complex real-time decisions.
3Reliability
If UE capabilities are wasted in deactivated cells, then the system maintains simplicity, but overall system performance deteriorates
Solution Approach 1:
The patent implements discarding and recovering by allowing the UE to discard capabilities associated with deactivated cells and recover them by sharing with other activated cells. When a cell is deactivated, its capabilities are not lost but are instead recovered and made available for use in other cells. This capability recycling mechanism improves overall system performance by preventing capability waste while maintaining manageable complexity through structured recovery processes.
Solution Approach 2:
The patent applies universality by enabling capabilities to serve multiple functions across different cells. A capability indicated for one cell can be universally applied to multiple activated cells through the sharing mechanism. This multi-functionality approach improves capability utilization reliability by ensuring capabilities are not confined to single cells but can be deployed where most needed, while the universality principle keeps the mechanism relatively simple.
Data Source
AI summary
A method for handling transmissions in a wireless cellular access network includes determining sharing at least one capability from at least one first band or cell to at least one second band or cell, and indicating capability sharing information to a wireless access network node. This provides a flexible mechanism for enabling UE capability sharing to thereby increase a UE capability utilization efficiency.