High-Powered Wireless Inter-Networking Device for Extended Range
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Solution Overview
Problem
Current wireless communication devices face limitations in range and reliability, particularly in remote or obstructed areas, due to their standard power levels and inefficiencies, which affect battery life and thermal management, making it difficult for public safety responders to maintain mission-critical communications.
Innovation Solution
A high-powered wireless inter-networking device with efficient radio frequency front-end (RFFE) technology that enables extended range communications by integrating a high power WWAN radio with a WLAN radio, utilizing amplifiers with 25% efficiency or higher to maintain performance without degrading receive capabilities and incorporating rejection filters to manage power levels and prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If standard power level WWAN radio is used, then battery life is preserved, but communication range is limited
Solution Approach 1:
The device is divided into two separate radio systems: a standard power WWAN radio for maintaining battery life and a high power WWAN radio for extending communication range. This segmentation allows each radio to serve its specific function without compromising the other, resolving the contradiction between battery life and communication range.
Solution Approach 2:
The patent combines multiple radio systems (standard power WWAN radio, high power WWAN radio, and WLAN radio) into a single integrated device. This merging enables the device to leverage both low-power and high-power transmission capabilities, allowing extended range communication while managing overall power consumption through intelligent radio selection.
2Length of moving object
If high power transmission is used, then communication range is extended, but thermal dissipation increases
Solution Approach 1:
The communication range extension function is segmented from the main device body into a separate high power WWAN radio unit. This physical and functional segmentation isolates the thermal generation source, allowing high power transmission without significantly increasing the thermal load on the main device components and battery.
Solution Approach 2:
The high power WWAN radio acts as an intermediary between the user and the base station, handling high power transmissions that would otherwise require the main device to operate at high power levels. This intermediary approach enables extended range communication while protecting the main device from excessive thermal dissipation.
3Length of moving object
If high power transmission is used, then communication range is extended, but receive capabilities are degraded
Solution Approach 1:
The transmission and reception functions are segmented into separate radio units. The high power WWAN radio handles only transmission operations, while the standard power WWAN radio maintains optimized receive capabilities. This segmentation prevents the degradation of receive performance that would occur if a single radio had to handle both high power transmission and sensitive reception.
Solution Approach 2:
Each radio unit is optimized for its specific function: the high power WWAN radio is optimized for transmission with appropriate power amplifiers and antennas, while the standard power WWAN radio is optimized for reception with sensitive receivers and low noise amplifiers. This local optimization ensures that receive capabilities are not compromised by high power transmission requirements.
4Use of energy by moving object
If efficient amplifier is added, then power efficiency is improved, but device complexity increases
Solution Approach 1:
The high power WWAN radio is designed to be self-contained with its own power management and efficient amplifier circuitry. This self-service approach allows the high power transmission unit to operate independently with optimized power efficiency without requiring complex integration and control mechanisms that would increase overall device complexity.
Solution Approach 2:
The power efficiency optimization is segmented into the high power WWAN radio unit, which incorporates efficient amplifiers specifically for high power operation. This segmentation allows power efficiency improvements to be implemented in the high power transmission path without adding complexity to the main device architecture or interfering with the operation of the standard power radio.
Data Source
AI summary
Aspects of the present disclosure generally pertains a system and method for wireless inter-networking between a wireless wide area network (WWAN) and a wireless local area network (WLAN) employing one or more extended range wireless inter-networking devices. Aspects of the present disclosure more specifically are directed toward a high powered wireless interconnect device that includes high efficiency circuitry to make it possible to implement in a portable or in-vehicle form factor, which may provide reasonable battery life, size, weight, and thermal dissipation.