Aperture Switch Control for ENDC Antenna Impedance
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Solution Overview
Problem
In the context of evolved universal terrestrial radio access (E-UTRA) new radio dual connectivity (ENDC), electronic devices face challenges in impedance-matching antennas across different network communications, leading to deteriorated antenna performance when switching between LTE and NR networks without an impedance tuning circuit.
Innovation Solution
An electronic device is equipped with a processor, multiple antennas, and an aperture switch that identifies network states and resource allocations to control the switching operation based on stored antenna settings, ensuring impedance-matching across various network communication states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the aperture tuning circuit switching operation is controlled based on the anchor network communication channel, then the device complexity is reduced, but the antenna performance deteriorates when transmitting signals on non-anchor networks
Solution Approach 1:
The patent implements dynamic control of the aperture switch by transitioning from static anchor-based switching to dynamic frequency-band-based switching. The processor dynamically determines the switching state based on the currently used frequency band, ensuring the aperture switch adapts to different operating conditions. This dynamic approach maintains antenna resonance characteristics optimized for the active frequency band, resolving the contradiction between simplified control and reliable performance.
Solution Approach 2:
The patent changes the control parameter from anchor network identification to frequency band identification. By monitoring which frequency band is currently being used for signal transmission and selecting the corresponding aperture switch state, the system ensures optimal antenna performance across different networks without requiring complex multi-network state management. This parameter change simplifies control logic while maintaining reliability.
2Reliability
If a separate impedance tuning circuit is added for each network communication, then the antenna performance is optimized for each network, but the device complexity increases
Solution Approach 1:
The patent makes the single aperture switch universal by enabling it to serve multiple frequency bands through dynamic configuration. Instead of having separate impedance tuning circuits for different networks, the system configures the aperture switch to operate in different states corresponding to different frequency bands. This multi-functional approach allows one component to handle impedance matching across multiple networks, reducing overall device complexity while maintaining optimized performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enables effective impedance-matching of antennas in ENDC environments, enhancing antenna performance by adjusting resonance characteristics based on network conditions, thereby improving communication efficiency.
Implementation Method 1
an aperture switch connected to the first antenna or the second antenna to change a resonance characteristic of at least one of the first antenna or the second antenna
Data Source
AI summary
An electronic device is provided. The electronic device includes at least one processor configured to support first network communication and second network communication, multiple antennas comprising a first antenna and a second antenna, an aperture switch connected to the first antenna or the second antenna and configured to change resonance characteristics of at least one of the first antenna and the second antenna, and a memory configured to store multiple antenna configurations for controlling a switching operation of the aperture switch. The at least one processor may be configured to identify whether the electronic device is in a state of connection to a first base station which corresponds to the first network communication, and which operates as a master node, and to a second base station which corresponds to the second network communication, and which operates as a secondary node, and identify information regarding allocation of a resource for communication.