Dual SIM RF Resource Allocation for Network Conversion
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Solution Overview
Problem
In electronic devices supporting dual SIM, the process of switching between cellular networks is hindered by the need to assign and manage RF resources, leading to delays in data transmission and reception due to the requirement of securing message reception from the existing connected network, which can cause inefficiencies in network conversion.
Innovation Solution
The electronic device employs a communication processor to detect data transmission activation, assign RF resources to the appropriate SIM module, measure channel quality, and maintain resource allocation based on preconfigured conditions, allowing for efficient switching between cellular networks by dynamically managing RF resources between SIM modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RF resource is assigned to subscriber identity module for existing connected cellular network to secure message reception, then message reception reliability is improved, but data transmission speed to another cellular network deteriorates due to resource unavailability
Solution Approach 1:
The patent implements dynamic RF resource allocation by introducing multiple operation modes (first operation mode for message reception, second operation mode for data transmission) that can be switched based on current network conditions and requirements. The communication processor dynamically selects which subscriber identity module receives the RF resource at any given time, rather than using a fixed allocation scheme, thereby resolving the contradiction between reliable message reception and fast data transmission.
2Ease of operation
If RF resource assignment is performed for cellular network connection, then connection establishment is enabled, but connection time increases due to resource allocation delays
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple operation modes and establishing ready-to-use communication paths for different networks. When connection is needed, the system can quickly switch between pre-established modes rather than performing full resource allocation from scratch, significantly reducing connection establishment time while maintaining connection capability.
3Adaptability or versatility
If dual SIM functionality is implemented to support multiple cellular networks, then network versatility is improved, but device complexity increases due to RF resource management
Solution Approach 1:
The patent segments the RF resource management into distinct operation modes and time slots for different subscriber identity modules. By dividing the resource allocation process into manageable segments (first operation mode for one SIM, second operation mode for another SIM), the system achieves multi-network support while reducing the complexity of simultaneous resource management through structured temporal and functional segmentation.
Data Source
AI summary
An electronic device and method thereof are provided. The electronic device includes a first subscriber identity module (SIM) for storing a first profile related to a first cellular network, a second SIM for storing a second profile related to a second cellular network, a wireless communication circuit including a radio frequency (RF) resource for performing data transmission or reception through one of the first cellular network or the second cellular network, and a communication processor configured to detect activation of a data transmission operation through the first cellular network, assign the RF resource to the first SIM during a first time, measure a quality of a channel corresponding to the first cellular network during the first time, maintain a state in which the RF resource is assigned to the first SIM during a second time, and reassign the RF resource to the second SIM after the second time expires.