Opportunistic Cellular Offloading for Dual-SIM User Equipment
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Solution Overview
Problem
User equipment (UE) with dual-sim dual-standby (DSDS) functionality faces challenges in efficiently utilizing multiple network connections due to shared hardware, software, and firmware components, leading to impaired performance and user experience when one SIM is active, as it restricts operations related to the other SIM.
Innovation Solution
The UE identifies predetermined conditions to offload operations to a paired further UE via a short-range communication protocol, allowing the further UE to establish a cellular network connection based on one of the subscriptions, thereby declaring 'no service' for one of the connections to dedicate resources to the other, ensuring efficient utilization of components for each SIM.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the UE uses the same hardware, software and firmware components to perform operations related to each network connection in DSDS mode, then the device complexity is reduced, but the reliability of network operations deteriorates because the component is unavailable when utilized for one connection
Solution Approach 1:
The patent segments the network connection operations by introducing a secondary UE that handles operations for one SIM while the primary UE handles another SIM. This divides the previously shared components into separate operational domains, allowing each UE to independently manage its assigned SIM's operations without conflict.
Solution Approach 2:
The patent introduces a short-range communication link as an intermediary between the primary UE and secondary UE. This intermediary enables coordination and resource sharing between the two devices, allowing them to work together as a unified system while maintaining separate operational paths for each SIM.
2Adaptability or versatility
If the UE establishes multiple network connections simultaneously in DSDS mode, then the adaptability of the device is improved, but the productivity deteriorates because operations for one SIM may cause inability to perform operations for the other SIM
Solution Approach 1:
The patent segments the handling of multiple network connections by assigning different SIMs to different UEs. The primary UE manages one SIM while the secondary UE manages another SIM, allowing both connections to be actively maintained without operational conflicts that would reduce productivity.
Solution Approach 2:
The patent combines the primary UE and secondary UE into a coordinated system through short-range communication. This merging allows the system to simultaneously maintain multiple network connections with full operational capability for each SIM, achieving both adaptability and productivity.
3Reliability
If the UE declares no service for one network connection to dedicate resources to another, then the reliability of the active connection is improved, but the adaptability deteriorates as the device cannot perform operations on both connections simultaneously
Solution Approach 1:
The patent segments the network connection management so that when one connection declares no service, the other UE simultaneously maintains its connection. This segmentation ensures that while one connection is optimized for reliability, the other maintains adaptability, and the system as a whole preserves both capabilities.
Solution Approach 2:
The patent creates a universal system where the pair of UEs together provides multi-functionality for handling multiple SIMs. The system can adaptively switch between configurations where either UE handles active operations, ensuring both reliability for the active connection and adaptability for maintaining multiple connections.
Data Source
AI summary
A device, system and method for a user equipment (UE) to opportunistically utilize the wireless capabilities of a paired device. The UE is configured to establish a first cellular network connection based on a first subscription, a second cellular network connection based on a second subscription and a connection to a further UE based on a short-range communication protocol. The UE identifies a predetermined condition and transmits an indication to the further UE based on the predetermined condition. The further UE establishes a further cellular network connection in response to the indication and the further cellular network connection is based on one of the first subscription or the second subscription. The UE then declares no service for one of the first cellular network connection or the second cellular network connection based on the further cellular network connection.