Overlapping CDRX and Scheduling Gaps for MUSIM UE
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Solution Overview
Problem
In wireless communication systems, particularly in multi-USIM (universal subscriber identity module) environments, there is a challenge in efficiently managing scheduling gaps to allow UE (user equipment) to perform operations with one network while maintaining connectivity with another, leading to potential data interruption and slow SIM switching due to mismatched DRX (Discontinuous Reception) configurations.
Innovation Solution
The method involves a UE registering to both networks, transmitting preference information for a scheduling gap to the first network, receiving a DRX configuration that includes the inactive duration for the scheduling gap, and applying this configuration to perform operations with the second network during the inactive period of the first network's DRX cycle, ensuring efficient data scheduling and quick SIM switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE maintains separate DRX configurations for both networks, then each network can be monitored independently, but the UE experiences data interruption and slow SIM switching due to mismatched configurations
Solution Approach 1:
The patent merges the DRX configuration of the first network with the scheduling gap requirements of the second network by configuring the inactive duration of the first network's DRX cycle to include the scheduling gap period. This allows the UE to perform operations with the second network during the inactive period without requiring separate DRX configurations, thereby reducing SIM switching time while maintaining connectivity with both networks.
2Reliability
If the UE configures separate monitoring periods for both networks, then each network receives adequate attention, but the overall system efficiency decreases due to unnecessary duration and resource waste
Solution Approach 1:
The patent combines the monitoring periods of both networks by aligning the scheduling gap of the second network with the inactive duration of the first network's DRX cycle. This merging approach ensures that the UE monitors both networks without creating separate, overlapping monitoring periods, thereby eliminating unnecessary duration and improving data scheduling efficiency while maintaining network operation stability.
3Adaptability or versatility
If the UE uses traditional gap operation methods, then the scheduling gap for the second network is preserved, but the first network's data transmission is interrupted due to mismatched DRX configurations
Solution Approach 1:
The patent merges the scheduling gap requirement with the DRX inactive period, allowing the UE to perform operations with the second network during the first network's inactive duration without interrupting data transmission. This integration maintains multi-network operation capability while ensuring continuous data transmission by avoiding conflicts between the two networks' scheduling requirements.
4Ease of manufacture
If the network provides DRX configuration without considering scheduling gaps, then the DRX configuration is simple, but the UE cannot perform operations with the second network during DRX cycles
Solution Approach 1:
The patent enhances the DRX configuration by integrating scheduling gap information into the inactive duration parameters. This approach maintains configuration simplicity from the network's perspective while enabling the UE to perform operations with the second network during the inactive period, thereby supporting multi-network operation without complicating the configuration process.
Data Source
AI summary
The present disclosure relates to a gap operation in wireless communications. According to an embodiment of the present disclosure, a user equipment (UE) sends information indicating a preference that discontinuous reception (DRX) is used for a scheduling gap and is configured with overlapped duration for connected mode DRX (CDRX) and the scheduling gap.