Antenna Assembly Coupling for Dual-standby Mobile Terminals
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Solution Overview
Problem
Conventional mobile communication terminals with dual-standby ability for LTE and 2G/3G networks are bulky, costly, and difficult to design due to the need for additional antennas, RF chips, and filters, which complicates R&D and increases size, particularly challenging for smaller devices with strict design requirements.
Innovation Solution
A mobile communication method that allows the antenna assembly to selectively work in different communication modes or combinations, dynamically adjusting the coupling relationship between the antenna assembly and communication unit based on the communication mode and service type, enabling a shared antenna configuration that reduces terminal size and cost while simplifying design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a mobile communication terminal is designed with dual-standby ability for LTE and 2G/3G networks, then the terminal can maintain connectivity in both networks, but the terminal size increases due to the need for additional antennas, RF chips, and filters
Solution Approach 1:
The patent combines LTE and 2G/3G antenna functions into a single shared antenna assembly. The antenna assembly is designed to support both LTE frequencies (700MHz-2600MHz) and 2G/3G frequencies (850MHz-2100MHz) through a unified structure, eliminating the need for separate dedicated antennas for each network type. This merging approach directly reduces terminal size while maintaining dual-standby capability.
Solution Approach 2:
The antenna assembly is designed with universal functionality to operate across multiple frequency bands and network types. By incorporating broadband matching circuits and multi-band resonant structures, the single antenna assembly can serve both LTE and 2G/3G networks, making the terminal adaptable to different networks without requiring additional specialized components.
2Adaptability or versatility
If a mobile communication terminal is designed with dual-standby ability for LTE and 2G/3G networks, then the terminal can maintain connectivity in both networks, but the terminal cost increases due to additional RF chips, filters, and baseband chips
Solution Approach 1:
The patent merges the RF processing functions for LTE and 2G/3G networks into a single shared RF chip and baseband chip. The RF chip is designed to handle multiple frequency bands and modulation schemes, allowing one chip to perform the work of what would traditionally require separate chips. This consolidation significantly reduces component count and manufacturing cost while maintaining dual-network support.
Solution Approach 2:
The RF chip and baseband chip are designed with universal processing capabilities that can handle both LTE and 2G/3G protocols, frequencies, and signal processing requirements. This multi-functionality allows the terminal to support multiple networks using the same core processing components, thereby reducing the bill of materials cost and simplifying the manufacturing process.
3Adaptability or versatility
If a mobile communication terminal is designed with dual-standby ability for LTE and 2G/3G networks, then the terminal can maintain connectivity in both networks, but the design complexity increases due to the need for additional components and R&D requirements
Solution Approach 1:
The patent combines the design of LTE and 2G/3G antenna systems into a single integrated antenna assembly with unified impedance matching and grounding structures. This merging approach simplifies the overall system architecture, reduces the number of design variables, and eliminates the need for separate design processes for different antenna systems, thereby reducing R&D complexity.
Solution Approach 2:
The antenna assembly and RF components are designed with universal characteristics that can accommodate both LTE and 2G/3G requirements. By creating a platform-based design that inherently supports multiple networks, the patent reduces the need for network-specific design iterations and simplifies the certification and testing processes, thereby reducing overall design complexity.
Data Source
AI summary
A mobile communication method based on a mobile communication terminal is provided, wherein a communication unit of the mobile communication terminal is adapted to working in at least two communication modes, and an antenna assembly of the mobile communication terminal is adapted to selectively working in different communication modes or in a combination of different communication modes. The method includes: selecting, based on a communication mode and a service type of the mobile communication terminal, a coupling relationship between the antenna assembly and the communication unit, so that the mobile communication terminal can work in various working modes; and if the communication mode and/or the service type of the mobile communication terminal changes, adjusting the coupling relationship between the antenna assembly and the communication unit based on the change. The mobile communication terminal using the method has characteristics of small size, low cost and less difficulty to design.