Carrier Aggregation Impedance Matching for MIMO Throughput
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Solution Overview
Problem
In data transmission using carrier aggregation (CA), existing methods fail to maximize data transmission by not considering the MIMO environment of secondary carrier cells and prioritizing bandwidth and service requirements, leading to suboptimal throughput and bandwidth guarantees.
Innovation Solution
An electronic device determines a frequency band based on information such as rank or service applied to frequency bands used for CA, performs impedance matching, and transmits data using antennas with adjusted impedance to enhance performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If impedance is adjusted only for the PCC frequency domain, then the PCC transmission performance is improved, but the SCC MIMO environment is not considered leading to reduced maximum data transmission
Solution Approach 1:
The patent divides the frequency band into multiple segments (PCC and SCC frequency domains) and performs impedance matching separately for each segment. This allows optimized impedance adjustment for each frequency domain rather than using a single unified impedance setting, thereby improving both matching accuracy and overall data transmission capacity.
Solution Approach 2:
The patent applies different impedance matching strategies to different frequency domains based on their specific characteristics. The PCC frequency domain receives impedance adjustment focused on coverage and reliability, while the SCC frequency domain receives impedance optimization focused on MIMO performance and throughput, achieving local optimization for each domain.
2Device complexity
If impedance is adjusted without considering CA bandwidth and service priority, then the adjustment process is simplified, but high throughput and bandwidth guarantees cannot be ensured
Solution Approach 1:
The patent implements dynamic impedance adjustment that adapts to changing CA bandwidth configurations and service priorities. The system continuously monitors the active frequency bands and service requirements, then dynamically adjusts impedance parameters accordingly, ensuring optimal performance under varying conditions without requiring complex manual configuration.
Solution Approach 2:
The patent incorporates feedback mechanisms that monitor transmission performance metrics and use this information to refine impedance settings. By observing actual throughput and bandwidth utilization, the system adjusts impedance parameters to maintain optimal performance levels, creating a closed-loop control system that balances complexity and effectiveness.
Data Source
AI summary
Various embodiments of the present disclosure relate to an apparatus and a method for data transmission using carrier aggregation (CA) in an electronic device. An operating method of an electronic device according to various embodiments of the present disclosure includes: determining a frequency band based on information regarding at least one of a rank or a service, which is applied to frequency bands used for CA; performing impedance matching with reference to the frequency band; and transmitting data by using antennas for which the impedance matching has been performed. Other embodiments are possible.