Post-Amplification Carrier Aggregation for E-Band Wireless
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Solution Overview
Problem
Current wireless communication systems face challenges in achieving high data rates over long distances using E-band frequencies, particularly in post-amplification carrier aggregation, where efficiency and power consumption are concerns due to the need for high power amplifiers and complex signal processing.
Innovation Solution
The implementation of a post-amplification carrier aggregation method, where two or more RF signals are separately amplified and then aggregated, using a waveguide-based multiplexing/demultiplexing device to achieve a higher data rate of 32 Gbps over a 71-76 GHz or 81-86 GHz range, with orthogonal polarization techniques to enhance efficiency and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pre-amplification carrier aggregation is used to achieve high data rates, then data transmission rate is improved, but power consumption increases due to the need for high power amplifiers
Solution Approach 1:
The patent divides the carrier aggregation process into separate amplification stages for each carrier signal, rather than using a single high-power amplifier. This segmentation allows each amplifier to operate at lower power levels while achieving the same overall data transmission rate through parallel processing of multiple carriers.
2Productivity
If high power amplifiers are used in post-amplification carrier aggregation, then data rate is improved, but device complexity increases
Solution Approach 1:
The system segments the carrier aggregation function into separate processing paths for each carrier, with individual amplification stages. This modular segmentation reduces overall system complexity by allowing each component to be optimized independently and using standard lower-power amplifier designs rather than requiring complex high-power amplifier systems.
3Productivity
If post-amplification carrier aggregation is implemented, then efficiency is improved, but manufacturing difficulty increases due to semiconductor technology constraints
Solution Approach 1:
The patent changes the operational parameters of the carrier aggregation system by implementing post-amplification rather than pre-amplification, and by using orthogonal polarization techniques. These parameter changes enable the system to achieve high efficiency while operating within the capabilities of current semiconductor technologies, avoiding the need for advanced manufacturing processes.
Data Source
AI summary
In one embodiment, a method includes receiving two or more input radio-frequency (RF) signals, each input RF signal being received on a separate input channel and having a different frequency range. The method also includes amplifying each input RF signal of the two or more input RF signals separately to produce two or more respective amplified RF signals. The method further includes aggregating the two or more amplified RF signals into one aggregated communication signal using a passive waveguide multiplexer, where the aggregated communication signal is an E-band communication signal having a frequency range within approximately 71-76 GHz or approximately 81-86 GHz. The method also includes transmitting the aggregated communication signal.