Code-Modulated Path-Sharing Multi-Signal System
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Solution Overview
Problem
Current multi-antenna systems require duplicating multiple RF chains, baseband blocks, and analog to digital converters for each antenna, leading to increased power consumption and chip area, which are costly and inefficient in densely integrated systems.
Innovation Solution
A code-modulated path-sharing multi-signal system that receives multiple input signals, code-modulates each with a unique code, combines them into a shared signal, and processes it through shared blocks, allowing for recovery using matched filters, thereby reducing power consumption and chip area by eliminating the need for separate signal chains.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple RF chains, baseband blocks and analog to digital converters are duplicated for each antenna, then each antenna can be processed independently, but power consumption and chip area increase significantly
Solution Approach 1:
The patent combines multiple antenna signals into a single shared RF chain by code-modulating each antenna's signal with a unique code. Instead of having separate RF chains for each antenna, the signals are multiplexed in the code domain and processed through a shared RF path, significantly reducing power consumption while maintaining signal integrity through code-based separation at the receiver.
Solution Approach 2:
The shared RF chain and baseband blocks are designed to handle multiple antenna signals simultaneously through code division. A single RF chain performs the function of multiple chains by processing code-modulated signals from different antennas, making the hardware universal and multi-functional rather than dedicated to a single antenna.
2Reliability
If multiple RF chains, baseband blocks and analog to digital converters are duplicated for each antenna, then each antenna can be processed independently, but chip area increases significantly
Solution Approach 1:
The patent merges multiple dedicated signal processing chains into a single shared chain by utilizing code modulation. The shared RF chain, baseband blocks, and ADC process signals from multiple antennas concurrently, reducing the chip area required while maintaining the ability to independently process each antenna's signal through code-based separation.
Solution Approach 2:
The shared hardware components are designed with universal functionality to handle multiple antenna inputs. The single RF chain and baseband processing blocks can process any combination of antenna signals by applying the appropriate code modulation and demodulation, eliminating the need for duplicate hardware for each antenna.
3Ease of manufacture
If separate signal chains are used for each antenna, then signal processing is straightforward, but the system becomes complex and coupling between components increases
Solution Approach 1:
The patent reduces system complexity by merging multiple separate signal chains into a single shared chain. Instead of managing multiple independent RF chains and baseband blocks, the system uses one shared chain with code modulation, simplifying the overall architecture and reducing component coupling while maintaining the ability to process multiple antenna signals.
Data Source
AI summary
Described herein are code-modulated multi-signal systems. In one embodiment, a multi-signal system receives multiple input signals and code-modulates each input signal with a unique code to distinguish the input signal from the other input signals. The input signals may come from multiple antennas, multiple sensors, multiple channels, etc. The code-modulated signals are then combined into a combined signal that is sent through shared blocks and/or transmitted across a shared medium in a shared path. After shared processing and/or shared transmission, the individual signals are recovered using matched filters. Each matched filter contains a code corresponding to one of the unique codes for recovering the corresponding signal from the combined signal. The recovered signals may then be inputted to additional processors for further processing.