Modular RF Front-End for Access Points
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication devices, particularly 4G and 5G small cell access points and Wi-Fi systems, face challenges in manufacturing and deployment due to the need for multiple frequency band-specific models, which are expensive and cumbersome, and cannot easily accommodate universal RF front-end capabilities, especially in paired spectrum modes.
Innovation Solution
A modular communication device design featuring a base module with universal RF transceivers and interchangeable front-end modules, each configured for specific radio frequency services, allowing for easy adaptation and configuration without special tools or calibration, using a blind-mate RF connector system and internal/external antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple frequency band-specific models are used to cover different radio frequency services, then frequency band coverage is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The RF front-end is divided into separate modular components: a base module containing universal RF transceivers and a front-end module containing frequency-specific circuitry. This segmentation allows the system to cover multiple frequency bands by simply swapping front-end modules rather than maintaining multiple complete device models, thereby reducing device complexity while maintaining broad frequency band coverage.
Solution Approach 2:
The base module is designed with universal RF transceivers that can operate across multiple frequency bands when paired with different front-end modules. This multi-functionality allows a single base module to support various radio frequency services (4G, 5G, Wi-Fi) through interchangeable front-end modules, eliminating the need for multiple specialized models and reducing manufacturing complexity.
2Adaptability or versatility
If multiple frequency band-specific models are used to accommodate different radio services, then service versatility is improved, but manufacturing and distribution cost increases
Solution Approach 1:
By segmenting the device into a universal base module and specialized front-end modules, manufacturers can produce large volumes of base modules at economies of scale, while only needing to manufacture front-end modules for specific frequency bands. This reduces overall manufacturing cost compared to producing multiple complete band-specific models, as the expensive universal base module is shared across all service variants.
Solution Approach 2:
The modular design enables front-end modules to be easily discarded and replaced depending on the required service. Instead of manufacturing and distributing multiple complete models, manufacturers can produce a standardized base module once and then attach different front-end modules as needed, significantly reducing manufacturing and distribution costs while maintaining service versatility.
3Adaptability or versatility
If universal RF front-end is implemented for wideband coverage, then frequency band adaptability is improved, but filtering requirements and transmitter specifications become more complex
Solution Approach 1:
The filtering and frequency-specific processing functions are segmented into separate front-end modules rather than being integrated into a single universal RF front-end. Each front-end module contains filters and circuitry optimized for its specific frequency band, which simplifies the filtering requirements for each module while maintaining overall frequency band adaptability through modular interchangeability.
Data Source
AI summary
A wireless communication device is built from a base module and a plurality of front-end modules. Each of the plurality of front-end modules is configured to operate a different one of a plurality of radio frequency services and having a front-end module connector configured to removeably mate with a base module connector of the base module. A particular front-end module is connected to the base module. Upon connection of the particular front-end module to the base module connector, the base module reads information from a memory of the particular front-end module to determine the radio service that the particular front-end module is configured to operate and to supply the control signals to configure and control front-end circuitry of the front-end module to operate the radio service.