Dual-SIM RF Path Coordination for DSDA UL MIMO Conflicts
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Solution Overview
Problem
Existing electronic devices with multiple SIMs face challenges in managing simultaneous communication with different networks, leading to inefficiencies and potential interference, particularly in dual SIM dual active (DSDA) mode.
Innovation Solution
The electronic device is equipped with communication processors that manage multiple SIMs by identifying transmission paths and controlling radio frequency circuits to optimize communication modes, such as UL MIMO and SISO, to avoid unnecessary radio access technology changes and ensure efficient signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SIMs are simultaneously activated in DSDA mode, then communication versatility is improved, but device complexity increases due to multiple transceivers and RF circuits
Solution Approach 1:
The patent implements DSDA (Dual SIM Dual Active) mode where a single transceiver can simultaneously communicate with multiple networks by dynamically switching between different SIMs and networks, eliminating the need for separate transceivers for each SIM while maintaining multi-network communication capability
Solution Approach 2:
The patent combines multiple SIM management functions into a unified transceiver system with intelligent network selection and switching mechanisms, merging what would traditionally require separate communication paths into a single integrated system that handles multiple SIMs simultaneously
2Productivity
If transmission paths are not properly managed between multiple SIMs, then communication efficiency deteriorates due to interference, but managing transmission paths increases device complexity
Solution Approach 1:
The patent implements feedback mechanisms where the communication processor continuously monitors transmission path status, signal quality, and network conditions, then dynamically adjusts SIM activation and transmission parameters to prevent interference and optimize communication efficiency
Solution Approach 2:
The patent employs dynamic transmission path management where the system automatically adapts transmission configurations based on real-time network conditions, SIM status, and communication requirements, switching between different SIMs and transmission modes as needed without manual intervention
Data Source
AI summary
An electronic device may comprise: at least one communication processor connected to a first SIM and a second SIM; and an RF circuit configured to process an RF signal on the basis of a signal from the at least one communication processor, wherein the electronic device may be configured to: receive a first message associated with an UL MIMO mode from a first network corresponding to the first SIM; receive a second message associated with an UL SISO mode from a second network corresponding to the second SIM; based on the received first message and the second message, identify whether a first transmission path configured for the first SIM and a second transmission path configured for the second SIM satisfy a first condition; and based on identifying that the first transmission path and the second transmission path do not satisfy the first condition, control the RF circuit to refrain from performing a first operation associated with changing an RAT for the second SIM and/or control the RF circuit to transmit an UL signal associated with the first SIM on the basis of the UL MIMO mode.