UE Cross-Carrier Configuration Identifier Swapping After Serving Cell Changes
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Solution Overview
Problem
In wireless communication systems, when a user equipment (UE) receives a cross-carrier configuration referencing a serving cell identifier that becomes invalid due to a serving cell change, the performance of communications is affected as the UE continues to operate with an outdated reference.
Innovation Solution
The UE assumes that the cross-carrier configuration is referencing the new serving cell by swapping or replacing the old cell identifier with the new cell identifier, or operates independently of the configuration until an update is received, thereby maintaining communication performance during serving cell changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE continues to operate with the outdated cross-carrier configuration referencing the old serving cell identifier, then the configuration structure is maintained, but communication performance deteriorates due to invalid references
Solution Approach 1:
The patent applies dynamics by making the cell identifier reference dynamic rather than static. When a serving cell change is detected, the UE automatically updates the cell identifier in the cross-carrier configuration from the old serving cell identifier to the new serving cell identifier, ensuring the configuration remains valid and communication performance is maintained without interruption
Solution Approach 2:
The patent implements self-service by enabling the UE to autonomously detect serving cell changes and self-update the cell identifier reference in the cross-carrier configuration without requiring network intervention or additional signaling, thereby maintaining communication reliability independently
2Reliability
If the UE updates the cell identifier in the cross-carrier configuration to maintain validity, then communication performance is maintained, but the complexity of configuration management increases
Solution Approach 1:
The UE autonomously monitors for serving cell changes and automatically updates the cell identifier reference in the cross-carrier configuration without requiring network signaling or complex configuration management procedures, thereby maintaining configuration validity while minimizing operational complexity
Solution Approach 2:
The patent changes the parameter (cell identifier) in the cross-carrier configuration dynamically based on serving cell changes. By simply updating the identifier parameter from old to new serving cell identifier, the configuration remains valid without requiring complex reconfiguration procedures
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information that indicates a configuration for a first cell associated with a first cell identifier, the configuration referencing a second cell identifier associated with a second cell that is a serving cell. The UE may receive an indication that the serving cell is to change from the second cell to a third cell associated with a third cell identifier. The UE may communicate according to the configuration by using the second cell identifier for the third cell and the third cell identifier for the second cell. Numerous other aspects are described.