Dual Connectivity Path Switching for Data Transmission Reliability
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Solution Overview
Problem
Current electronic devices supporting dual connectivity lack the ability to actively switch from a primary network path to a secondary path upon detection of a network failure, leading to potential data stalls when the transmission data size is less than the uplink split threshold.
Innovation Solution
An electronic device is equipped with both a first and second communication processor, allowing it to switch the data transmission path to the secondary network communication when a failure is detected in the primary path, regardless of the data size, and report signal strength measurements to an external device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE transmits data only through the primary path when size is less than uplink split threshold, then the network resource is efficiently utilized, but data transmission stalls when primary path fails
Solution Approach 1:
The patent implements dynamic path selection by enabling the UE to switch between primary and secondary paths based on real-time network conditions and failure detection. The system transitions from a static primary-path-only approach to a dynamic multi-path approach, allowing adaptive response to network failures while maintaining efficiency through threshold-based routing decisions.
Solution Approach 2:
The patent changes the routing parameter (transmission path selection) based on the uplink split threshold and network status. When the primary path fails, the system changes the path parameter from primary to secondary, ensuring continuous data transmission. This parameter change mechanism resolves the contradiction by allowing flexible adaptation to network conditions.
2Reliability
If the UE configures split bearer with primary and secondary paths, then data transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent segments the data transmission path into primary and secondary paths through split bearer configuration. This segmentation allows independent management of each path, enabling failure isolation and continuous transmission through the secondary path when the primary fails, thereby improving reliability while managing complexity through structured path division.
Solution Approach 2:
The secondary path serves multiple functions: it acts as a standby path for failure recovery and as an active transmission path when needed. This multi-functionality justifies the additional configuration complexity by providing both backup and alternative transmission capabilities, resolving the contradiction between reliability improvement and device complexity.
3Duration of action of stationary object
If the UE switches to secondary path upon primary path failure, then data transmission continuity is maintained, but network resource consumption increases
Solution Approach 1:
The patent prepares the secondary path in advance as a standby route during normal operation. When primary path failure occurs, the pre-prepared secondary path enables immediate switchover without interruption, maintaining transmission continuity. This preliminary preparation resolves the contradiction by having the backup ready beforehand, avoiding the energy cost of establishing a new path during failure.
Data Source
AI summary
An electronic device may include a first communication processor supporting first network communication with a first network, and a second communication processor supporting second network communication with a second network different from the first network. When both of the first network communication and the second network communication are set to a data transmittable state, the second communication processor may be configured to transmit transmission data based on the second network communication selected as a primary path from between the first network communication and the second network communication, when the size of the transmission data is less than a predetermined threshold. In response to detection of a failure in the second network communication, the first communication processor may be configured to transmit the transmission data based on the first network communication, irrespective of whether the size of the transmission data is equal to or larger than the predetermined threshold.