Multi-Antenna RF Front-End Segmentation for Wideband Uplink
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Solution Overview
Problem
Modern wireless communication standards, such as MIMO and high bandwidths, increase the complexity, size, power consumption, and cost of uplink front-ends in mobile devices, necessitating more efficient communication techniques.
Innovation Solution
The apparatus splits data into multiple RF transmit signals with narrower frequency ranges, allowing concurrent transmission using multiple antennae, reducing the requirements for the front-end circuit and enabling efficient carrier aggregation across different frequency bands and standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MIMO and high bandwidth features are implemented in modern communication standards, then data transmission capability is improved, but front-end complexity and size increase
Solution Approach 1:
The wide frequency range is divided into multiple narrower frequency ranges, with each range handled by a separate transmit path. This segmentation allows the system to achieve high bandwidth transmission capability while keeping each individual transmit path simple and manageable, thus resolving the contradiction between productivity and device complexity.
2Productivity
If MIMO and high bandwidth features are implemented, then data transmission capability is improved, but power consumption increases
Solution Approach 1:
By segmenting the wide frequency range into multiple narrower ranges and processing them in parallel transmit paths, the system achieves high data transmission capability while distributing the power consumption across multiple simpler paths, reducing the peak power consumption compared to a single complex path.
3Productivity
If MIMO and high bandwidth features are implemented, then data transmission capability is improved, but cost increases
Solution Approach 1:
The front-end is divided into multiple simpler transmit paths, each handling a narrower frequency range. This segmentation uses off-the-shelf components for each path, making the system easier to manufacture and more cost-effective compared to implementing a single complex high-bandwidth path.
4Device complexity
If a single transmit path handles wide frequency range, then device complexity is reduced, but transmission efficiency decreases
Solution Approach 1:
The frequency range is segmented into multiple narrower bands, each processed by a dedicated transmit path. This segmentation maintains low device complexity within each path while achieving high overall transmission efficiency through parallel processing of multiple frequency bands.
Solution Approach 2:
The system transitions from a single-dimension approach (one transmit path handling wide bandwidth) to a multi-dimensional approach (multiple transmit paths handling narrower bands in parallel), thereby achieving both low complexity and high transmission efficiency.
Data Source
AI summary
An apparatus for wireless communication is provided. The apparatus includes a processing circuit configured to receive data to be wirelessly transmitted within a predefined frequency range. Further, the processing circuit is configured to generate a first radio frequency transmit signal of a first frequency range based on the data, and to generate a second radio frequency transmit signal of a second frequency range based on the data. The first frequency range and the second frequency range are subranges of the predefined frequency range. The apparatus further includes a front-end circuit configured to supply the first radio frequency transmit signal to a first antenna, and to supply the second radio frequency transmit signal to a second antenna.