Dual-SIM RF Scheduling for Idle Measurement and Data Throughput
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Solution Overview
Problem
In dual-card mobile terminals, the non-data card's idle-state measurement competes with the data card for RF resources, leading to reduced data transmission rates, particularly when both cards share a radio frequency system.
Innovation Solution
A method and apparatus for adjusting the idle-state-measurement frequency of the non-data card based on the terminal's movement and service state, reducing the frequency when certain conditions are met to minimize resource competition and enhance data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the non-data card performs idle-state measurement with high frequency, then the measurement accuracy and network switching capability are improved, but the data transmission rate of the data card deteriorates due to RF resource competition
Solution Approach 1:
The patent dynamically adjusts the idle-state measurement frequency of the non-data card based on the data card's transmission state. When the data card is in active transmission, the measurement frequency is reduced or suspended; when the data card is idle, the measurement frequency is increased. This dynamic adjustment resolves the contradiction by making the measurement frequency adaptive rather than fixed, allowing both measurement accuracy and data transmission rate to be optimized under different conditions.
Solution Approach 2:
The patent implements periodic measurement of the data card's transmission state and adjusts the non-data card's measurement frequency accordingly. The system periodically checks whether the data card is in transmission mode and switches the non-data card's measurement frequency between high and low states based on this periodic assessment. This periodic action allows the system to maintain measurement capability while minimizing interference with data transmission during active periods.
2Device complexity
If both cards share a set of RF system to reduce manufacturing cost, then the device complexity is reduced, but the resource competition between cards increases leading to reduced data transmission rate
Solution Approach 1:
The patent applies preliminary action by detecting the data card's transmission state before the non-data card performs idle-state measurement. The system proactively checks whether the data card is in active transmission mode and, if so, prevents or delays the non-data card's measurement activity. This preliminary detection and preventive adjustment avoid RF resource conflicts before they occur, maintaining high data transmission rates while still allowing the non-data card to perform necessary measurements during idle periods.
Solution Approach 2:
The patent introduces a control mechanism that acts as an intermediary between the data card and non-data card. This control system monitors the data card's transmission state and mediates the non-data card's measurement frequency accordingly. The intermediary controller coordinates resource usage between the two cards, ensuring that measurements only occur when they will not interfere with data transmission, thus resolving the resource competition issue while maintaining the shared RF system architecture.
Data Source
AI summary
A method for frequency adjustment, a terminal, and a storage medium are provided. In the method, the terminal obtains state information of the terminal, where the state information indicates a movement state and/or a service state of the terminal, and adjusts an idle-state-measurement frequency of a non-data card of the terminal according to the state information of the terminal.