Discrete Digital Receiver with FTBPF for Multi-Standard RF Scaling
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Solution Overview
Problem
The existing wireless communication devices face challenges in updating their transceiver ICs to accommodate advancements in IC fabrication, particularly in redesigning analog components which do not scale with smaller transistor sizes, leading to increased costs and complexity in maintaining performance across different communication standards.
Innovation Solution
The development of a discrete digital RF transceiver architecture that includes a baseband processing module, transmitter section, and receiver section, utilizing a combination of digital and analog components to efficiently convert data into RF signals and vice versa, while incorporating a sample and hold filter circuit and discrete time filter to manage signal processing across multiple communication standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If transceiver ICs are updated to accommodate advancements in IC fabrication with smaller transistor sizes, then manufacturing cost and device complexity increase, but manufacturing precision and performance requirements must be maintained
Solution Approach 1:
The transceiver is divided into separate functional modules: a digital baseband processing module and an analog RF module. This segmentation allows each module to be independently optimized and updated without requiring complete redesign of the entire transceiver, thereby managing complexity while maintaining performance precision.
Solution Approach 2:
The digital baseband processing module is designed with universal functionality to support multiple communication standards (2G, 3G, 4G, Wi-Fi, Bluetooth). This multi-functionality allows the same module to be reused across different standards, reducing the need for extensive redesign and maintaining performance across various protocols without increasing overall device complexity.
2Manufacturing precision
If analog components are redesigned for each communication standard, then performance requirements are met, but manufacturing cost increases
Solution Approach 1:
The analog RF module is designed as a universal component that can interface with multiple digital baseband processing modules supporting different communication standards. This universality allows the analog portion to be manufactured once and reused across 2G, 3G, 4G, Wi-Fi, and Bluetooth implementations, significantly reducing manufacturing costs while maintaining the required performance precision for each standard.
Solution Approach 2:
The patent combines multiple communication standard functionalities into a single integrated transceiver architecture where the digital baseband module handles standard-specific processing while the analog RF module provides common radio frequency functionality. This merging eliminates the need for separate analog components for each standard, reducing manufacturing cost while preserving performance requirements.
3Manufacturing precision
If discrete components are used to achieve strict performance requirements, then manufacturing precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges previously discrete components into integrated circuit modules. The digital baseband processing module and analog RF module are integrated units that incorporate multiple functions that previously required separate discrete components. This integration maintains the strict performance requirements through precise internal design while reducing overall device complexity and the number of discrete components needed.
Data Source
AI summary
A receiver includes an antenna interface, a frequency translation bandpass filter (FTBPF), a sample and hold module, and a down conversion module. The antenna interface is operable to receive a received wireless signal from an antenna structure and to isolate the received wireless signal from another wireless signal. The FTBPF is operable to filter the received wireless signal to produce an inbound wireless signal. The sample and hold module is operable to sample and hold the inbound wireless signal in accordance with an S&H clock signal to produce a frequency domain sample pulse train. The down conversion module is operable to convert the frequency domain sample pulse train into an inbound baseband signal.