Dual Modem Control Path for 5G Standalone Interworking
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The standalone (SA) scheme for 5G network implementation does not support 2G and 3G networks, requiring significant changes to 4G networks and devices for interworking, which is inefficient and not seamless.
Innovation Solution
An electronic device with both 4G and 5G modems, a processor, and memory, where the processor executes instructions to manage radio interface layers for both modems, allowing efficient data path switching and control signal exchange between them without relying on existing inter radio access technology handover schemes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the SA scheme is used for 5G network implementation, then 5G network can be independently operated, but significant changes are required to 4G networks and devices for interworking
Solution Approach 1:
The patent introduces a control signal exchange mechanism where the 5G modem exchanges control signals with the 4G modem through the existing 4G control path. This intermediary approach allows the 5G network to operate independently while using the 4G control infrastructure for coordination, avoiding the need for significant changes to 4G networks.
2Adaptability or versatility
If the SA scheme is used for 5G network implementation, then 5G network can be independently operated, but existing inter radio access technology handover schemes cannot be used
Solution Approach 1:
The patent segments the control signal exchange into separate control paths: a first control path for 4G modem to RIL communication and a second control path for 5G modem to RIL communication. This segmentation allows independent operation of 5G network while maintaining ease of operation through established control path architectures.
Solution Approach 2:
The patent uses the 4G modem as an intermediary for control signal exchange between the 5G modem and RIL. The 5G modem exchanges control signals with the 4G modem, which then forwards them to the RIL through the existing 4G control path, enabling 5G independent operation without requiring new handover schemes.
3Reliability
If direct control signal exchange between 4G and 5G modems is implemented, then data service stability is improved, but control path complexity increases
Solution Approach 1:
The patent merges the control path structures by allowing the 5G modem to exchange control signals with the 4G modem, which then uses the existing 4G control path to communicate with the RIL. This merging approach improves reliability through direct control signal exchange while avoiding the complexity of completely separate control paths.
Data Source
AI summary
Disclosed is an electronic device. The electronic device may include a first modem supporting communication for a first cellular network, a second modem supporting communication for a second cellular network, a processor electrically coupled to the first modem and the second modem, and a memory electrically coupled to the processor and including instructions, and the instructions, when executed by the processor, may cause the processor to perform an operation associated with a radio interface layer (RIL) corresponding to both the first modem and the second modem, and to acquire control information generated by the second modem via a control path connecting the first modem and the RIL. Moreover, various embodiment found through the present disclosure are possible.