Dynamic Antenna Switching for Mobile Terminal Signal Loss
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Solution Overview
Problem
Mobile communication terminals face challenges in maintaining good call quality due to signal propagation loss and environmental factors, especially with the need to support multiple frequency bands and systems like 2G, 3G, 4G, Wi-Fi, and Bluetooth, leading to poor communication quality.
Innovation Solution
A mobile communication terminal with a signal output module, main antenna module, diversity antenna module, acquisition module, control module, and radio-frequency switching module that dynamically switches between the main and diversity antennas based on transmission capabilities to minimize signal loss by selecting the superior transmission link.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile communication terminal uses a single antenna for signal transmission, then the device complexity is reduced, but the signal propagation loss increases leading to poor call quality
Solution Approach 1:
The antenna system is segmented into multiple independent antenna modules (main antenna module and diversity antenna module), each capable of independent signal transmission. The switching module divides the signal path into multiple channels, allowing selective connection based on transmission quality requirements.
Solution Approach 2:
The antenna system implements dynamic switching between different antenna modules based on real-time transmission capability assessment. The control module continuously monitors transmission quality and dynamically adjusts the connection state of the switching module to select the optimal antenna for signal transmission.
2Reliability
If the mobile communication terminal transmits signals with high power, then the signal propagation loss is compensated, but the energy consumption increases
Solution Approach 1:
The control module implements a feedback mechanism by acquiring transmission capabilities of different antenna modules and using this information to control the switching module. This feedback loop allows the system to select antennas with better transmission capabilities, reducing the need for high transmission power while maintaining reliable signal delivery.
Solution Approach 2:
The system changes the parameter of antenna selection based on transmission capability assessment. By selecting antennas with superior transmission characteristics (better gain, lower loss), the system optimizes the transmission parameter without increasing power consumption, thereby improving energy efficiency.
3Adaptability or versatility
If the mobile communication terminal supports multiple frequency bands and systems, then the adaptability increases, but the antenna efficiency decreases due to space limitations
Solution Approach 1:
The antenna modules are designed with multi-functionality to support multiple frequency bands and communication systems (2G, 3G, 4G, Wi-Fi, Bluetooth). The switching module provides universal connectivity by being able to connect the signal output module to different antenna modules based on the required communication system and frequency band.
Data Source
AI summary
Disclosed by the embodiments of the present document are a mobile communication terminal including a signal output module, a main antenna module, a diversity antenna module, an acquisition module, a control module and a radio-frequency switching module, and a signal transmission method. The acquisition module is used to acquire transmitting power P1 of a transmitted signal when the signal output module generates the transmitted signal to transmit through the main antenna module, and acquire transmission capabilities of the main antenna module and the diversity antenna module when P1 is greater than a first preset value. The control module outputs a corresponding control signal to the radio-frequency switching module according to the transmission capabilities of the main antenna module and the diversity antenna module; and the radio-frequency switching module controls the output module to be connected with the main antenna module or the diversity antenna module according to the control signal.