Emulation-Based Cross-Technology Communication for High Throughput

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Solution Overview

Problem

Current cross-technology communication (CTC) methods face limitations in throughput and spectrum efficiency due to reliance on packet-level modulation, requiring additional hardware and complex network structures, and are not suitable for mobile or ad-hoc scenarios.

Innovation Solution

The implementation of emulation-based CTC techniques that use high-speed wireless radios to emulate signals of low-speed radios, such as WiFi emulating ZigBee, allowing direct communication across different wireless protocols without hardware or firmware changes, enabling high-throughput and reliable parallel communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If packet-level modulation is used for cross-technology communication, then communication between heterogeneous devices is achieved, but throughput is limited and spectrum efficiency is reduced

Engineering Contradiction:
ImprovethroughputVSAvoidcommunication reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent creates artificial signal copies that mimic the characteristics of the target wireless protocol. The transmitting device generates signal copies with timing, duration, and structure that match the target protocol's expected signal patterns, allowing the receiving device to interpret them as legitimate protocol signals. This copying approach enables high-throughput communication while maintaining protocol compatibility and reliability.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent dynamically adjusts signal parameters such as packet timing, duration, and structure to match the target protocol's expectations. By changing these parameters to align with the target protocol's signal characteristics, the system achieves both high throughput and reliable communication without requiring hardware modifications.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If multi-radio gateways are deployed for heterogeneous device communication, then communication between different wireless protocols is enabled, but hardware cost increases and network structure becomes complicated

Engineering Contradiction:
Improveprotocol compatibilityVSAvoidnetwork structure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent extracts the protocol translation function from separate gateway hardware and integrates it directly into the communicating devices themselves. Each device performs signal emulation and parameter adjustment locally, eliminating the need for external multi-radio gateways and simplifying the overall network structure while maintaining protocol compatibility.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent enables devices to perform their own protocol adaptation and signal translation through built-in emulation capabilities. Each device independently generates and interprets protocol-specific signal characteristics without requiring external translation services, reducing hardware requirements and network complexity.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If multi-radio gateways are used for cross-technology communication, then heterogeneous device connectivity is achieved, but traffic overhead increases due to traffic flowing through the gateway

Engineering Contradiction:
Improvedevice connectivityVSAvoidtraffic overhead
Core Design Contradiction:
Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The patent removes the gateway intermediary from the communication path, allowing direct device-to-device communication. By extracting the translation function from the gateway and embedding it in the communicating devices, the system eliminates the traffic overhead associated with routing all data through a central gateway point.

Inventive Principle:
Principle #2Taking out (Extraction)

4Ease of manufacture

If legacy devices are used for cross-technology communication without hardware changes, then deployment cost is reduced, but communication reliability in noisy environments deteriorates

Engineering Contradiction:
Improvedeployment costVSAvoidcommunication reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent adjusts signal parameters such as timing, duration, and structure to match the target protocol's expected characteristics. By carefully controlling these parameters, the system ensures that legacy devices can reliably interpret the emulated signals even in noisy environments, maintaining communication reliability without hardware modifications.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent creates accurate signal copies that replicate the timing and structural characteristics of the target protocol. These precise copies enable legacy devices to reliably distinguish valid signals from noise, maintaining communication reliability while using cost-effective legacy hardware.

Inventive Principle:
Principle #26Copying

Data Source

PatentUS10749991B2Emulation-based cross-technology communication
Publication Date: 2020.08.18 REGENTS OF THE UNIVERSITY OF MINNESOTA
  • US10749991B2 patent drawing
  • US10749991B2 patent drawing
  • US10749991B2 patent drawing

AI summary

In general, a system is described that includes two computing devices, a first which is configured to operate using a first wireless protocol and a second which is configured to operate using a second wireless protocol different than the first wireless protocol. The first computing device may determine a symbol to be sent to the second computing device. For each bit included in a payload of a data packet, the first computing device may set a value of the respective bit such that the symbol, when the data packet is translated into at least one signal using the first wireless protocol, is readable using the second wireless protocol. The first computing device generates the signal using the first wireless protocol, and outputs, via the first wireless protocol, the at least one signal. The second computing device may receive the at least one signal and demodulate the payload.