Reconfigurable RF Front-End Chip Reuse Through Variable Logic Coding
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Solution Overview
Problem
The high development cost and complexity of integrated circuit systems due to the need for multiple chips with similar functions, which can be attributed to the limited scope and interference issues in existing component reusable technologies for RF front-end modules in communication terminals.
Innovation Solution
A variable coding method utilizing at least two identical integrated circuit chips, where each chip executes different control logic truth tables based on strobe signals, with logic control signals connected to VDD or GND ends to enable chip reuse, allowing the same chip to operate in different frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple chips with different functions and processes are integrated in a single package (SiP technology), then system integration level and functionality are improved, but development cost increases due to the high cost of putting each chip into production
Solution Approach 1:
The patent applies universality by designing a single chip that can perform multiple functions through reconfiguration. The RF front-end chip is designed to support multiple frequency bands and modes by dynamically reconfiguring its internal components, eliminating the need for separate dedicated chips for each function. This reduces the number of different chips that need to be produced and integrated, thereby lowering development costs while maintaining high system integration capability.
2Quantity of substance
If existing component reusable technology is used to share components among multiple transceivers, then component count is reduced, but application scope is limited and anti-interference problems arise
Solution Approach 1:
The patent applies dynamics by implementing a reconfigurable RF front-end where components can dynamically change their characteristics and connections based on operating conditions. The chip includes controllable switches, variable capacitors, and reconfigurable signal paths that can be adjusted in real-time to support different frequency bands, modes, and transmission directions. This dynamic reconfiguration capability expands application scope beyond static component sharing, allowing the same physical components to serve multiple functions across different operating scenarios while maintaining signal isolation through controlled switching.
Data Source
AI summary
Disclosed is a variable coding method for realizing chip reuse, comprising the following steps: using at least two identical integrated circuit chips, wherein each integrated circuit chip executes different control logic truth tables according to different gating signals; introducing at least one logical control signal as a gating signal; and controlling the logical control signal, so that each integrated circuit chip respectively executes a corresponding control logic truth table. Also disclosed is a communication terminal using the variable coding method for realizing chip reuse. Two or more completely identical integrated circuit chips can be used to realize different logical control functions, thereby simplifying the type of a chip for realizing a system function, and greatly reducing the development costs of an integrated circuit system and the management complexity of a mass production supply chain.