Power Control Unit for Multi-SIM Terminal Frequency Sharing
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Solution Overview
Problem
The exhaustion of frequency resources in wireless communication services limits the availability of communication opportunities, particularly when using multi-SIM terminals, as existing technologies do not efficiently utilize secondary communication services without causing interference to primary communication services.
Innovation Solution
A communication control device with a power control unit that increases the transmission power of a secondary communication service when switching from one SIM information to another, allowing the secondary service to utilize the same frequency band near an area where a primary service is provided, thereby optimizing resource use without causing excessive interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the secondary communication service uses the same frequency band near an area where a primary service is provided, then resource utilization is improved, but interference to the primary service increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the transmission power of the secondary communication service based on SIM card switching events. When a terminal switches SIM cards, the base station increases the transmission power of the secondary service, allowing it to utilize frequency resources more effectively while managing interference through controlled power variations rather than static allocation
Solution Approach 2:
The patent implements dynamics by making the transmission power of the secondary communication service adjustable and event-driven rather than fixed. The power control unit responds to SIM card switching events in real-time, dynamically modifying transmission parameters to optimize resource utilization while preventing excessive interference to primary services
2Adaptability or versatility
If the transmission power of secondary communication service is increased, then communication opportunity is expanded, but interference to primary service increases
Solution Approach 1:
The patent applies preliminary action by proactively increasing the transmission power of the secondary communication service at the moment of SIM card switching. This timing strategy allows the secondary service to expand its communication opportunities by utilizing frequency resources that become available when the terminal switches SIM cards, while the power increase is controlled and time-limited to minimize interference duration
Solution Approach 2:
The patent implements feedback mechanisms where the base station monitors SIM card switching events in terminals and responds by adjusting the transmission power of the secondary communication service. This closed-loop control allows the system to expand communication opportunities based on actual terminal behavior while maintaining interference management through responsive power adjustments
Data Source
AI summary
There is provided a communication control device including a power control unit configured to control a transmission power of a secondary communication service to be provided at least near an area where a first primary communication service is provided. The power control unit increases the transmission power of the secondary communication service upon performing a switching from subscriber identity module (SIM) information corresponding to the first primary communication service to SIM information corresponding to a second primary communication service in a terminal device using a communication service by using any SIM information switched between a plurality of SIM information.