Multi-SIM Communication Apparatus Signal Strength Selection
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Solution Overview
Problem
Communication apparatuses equipped with multiple subscriber identity cards face challenges in maintaining reliable communication quality due to variations in signal strength across different wireless networks, leading to inefficiencies in power consumption and communication reliability.
Innovation Solution
The apparatus compares signal strengths from multiple wireless networks and selectively uses the network with better signal quality for communication requests, either by redirecting requests or choosing the appropriate subscriber identity card for transmission, thereby optimizing communication quality and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple subscriber identity cards are used to access different wireless networks, then communication versatility is improved, but communication reliability deteriorates due to signal strength variations
Solution Approach 1:
The patent implements dynamic selection of subscriber identity cards based on real-time signal strength measurements. The system continuously monitors signal quality from multiple networks and dynamically switches between different SIM cards to maintain optimal communication reliability while preserving the ability to access multiple networks.
Solution Approach 2:
The system incorporates feedback mechanisms where signal strength information from one subscriber identity card is used to influence the selection of other subscriber identity cards. This feedback loop ensures that communication requests are routed through the network with the strongest signal, thereby maintaining reliability across multiple network connections.
2Area of stationary object
If multiple subscriber identity cards camp on different cells simultaneously, then network coverage is improved, but power consumption increases
Solution Approach 1:
Instead of having all subscriber identity cards actively camp on and monitor all available cells simultaneously (excessive action), the system enables partial monitoring where each SIM card monitors only relevant cells. The system then coordinates which SIM cards perform full camping procedures based on current signal conditions, reducing overall power consumption while maintaining comprehensive network coverage capability.
3Reliability
If signal strength comparison is performed for each communication request, then communication quality is improved, but processing time increases
Solution Approach 1:
The system performs signal strength comparisons and selects optimal subscriber identity cards in advance, before actual communication requests are processed. By pre-evaluating signal conditions and establishing preferred routing paths, the system avoids repeated real-time comparisons during communication setup, thereby reducing processing time while maintaining communication quality.
Data Source
AI summary
A communication apparatus is provided. The communication apparatus includes at least one radio transceiver module, a first subscriber identity card, a second subscriber identity card and a processor. The first subscriber identity card camps on a first cell belonging to a first wireless network via the same or different radio transceiver modules. The second subscriber identity card camps on a second cell belonging to a second wireless network via the same or different radio transceiver modules. The processor, coupled to the first subscriber identity card, the second subscriber identity card and the radio transceiver module(s), receives an apparatus originated communication request with a destination address, compares a signal strength of a first signal received from the first cell with a signal strength of a second signal received from the second cell and establishes a wireless communication with a peer device having the destination address through the cell with better signal strength.