Integrated Radio Head Wireless Communication Architecture
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Solution Overview
Problem
The increasing demand for wider bandwidths and higher-order modulation schemes in wireless communication systems leads to technical challenges such as cross interference, power consumption limitations, thermal issues, and RF front-end complexity when using co-located transceiver chains, which are not efficiently addressed by existing technologies.
Innovation Solution
A Distributed Radio System (DRS) architecture is implemented, where a single transceiver chain is located near or on the antenna and connected to a System on Chip (SoC) via a digital link, allowing for a scalable and flexible configuration with integrated Radio Heads (RHs) that support concurrent operation over multiple frequency bands, reducing cross-talk and thermal density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple co-located wireless transceivers are used to increase bandwidth and throughput, then data throughput is improved, but cross interference and thermal issues increase
Solution Approach 1:
The patent divides the wireless communication system into separate functional modules: a distributed radio system with multiple spatially separated transceivers and a centralized baseband processor. This segmentation allows transceivers to be distributed across different locations rather than co-located, reducing cross interference while maintaining high throughput through multiple spatial channels.
Solution Approach 2:
The patent introduces a centralized baseband processor as an intermediary between the distributed transceivers and the higher layers of the communication protocol stack. This intermediary manages the complexity of multiple transceivers, coordinates their operation to avoid cross interference, and processes signals from multiple spatial channels to achieve high throughput.
2Productivity
If multiple co-located wireless transceivers are used to increase bandwidth and throughput, then data throughput is improved, but power consumption increases
Solution Approach 1:
The patent segments the system into distributed transceivers that can operate independently with lower power consumption compared to multiple high-power co-located transceivers. The centralized baseband processor efficiently manages power distribution and coordination, enabling high throughput through multiple low-power spatial channels rather than few high-power co-located units.
3Productivity
If multiple co-located wireless transceivers are used to increase bandwidth and throughput, then data throughput is improved, but thermal density increases
Solution Approach 1:
The patent spatially segments the transceiver components across different locations rather than concentrating them in a single co-located unit. This distribution reduces thermal density by spreading heat generation across multiple spatial channels, while the centralized baseband processor maintains system coordination for high throughput operation.
4Productivity
If multiple co-located wireless transceivers are used to support wider bandwidths and higher-order modulations, then spectral efficiency is improved, but RF front-end complexity increases
Solution Approach 1:
The patent introduces a centralized baseband processor as an intermediary that handles the complexity of wide bandwidth processing and higher-order modulation schemes. The distributed transceivers perform simpler RF functions, while the baseband processor manages the sophisticated signal processing required for high spectral efficiency, separating RF complexity from the distributed front-end.
5Object-affected harmful factors
If a distributed radio system with single transceiver chain near antenna is used, then cross-talk and thermal density are reduced, but system complexity increases
Solution Approach 1:
The patent uses a centralized baseband processor as an intermediary to manage the complexity of the distributed radio system. This intermediary coordinates multiple spatial channels, handles signal processing for reduced cross-talk, and manages system resources, thereby achieving low cross-talk performance without proportionally increasing overall system complexity.
Data Source
AI summary
Some demonstrative embodiments may include an apparatus including an integrated Radio Head (RH), the integrated RH including an antenna; a transceiver chain to transmit a Radio Frequency (RF) transmit (Tx) signal via the antenna, and to receive an RF Receive (Rx) signal via the antenna; a Physical layer (PHY) time-domain (TD) processor configured to generate a digital PHY TD Rx signal based on the RF Rx signal, and to cause the transceiver chain to transmit the RF Tx signal based on a digital PHY TD Tx signal; and a digital interface to communicate the digital PHY TD Tx signal and the digital PHY TD Rx signal over a digital link.