Reconfigurable RF Transmit Paths for Wideband Uplink Front-Ends
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Solution Overview
Problem
Modern communication standards, such as MIMO and higher bandwidths, increase the size, power consumption, and cost of uplink front-ends in mobile devices.
Innovation Solution
A wireless communication apparatus that generates and transmits multiple RF signals simultaneously through separate antennas, using reconfigurable transmit paths to support different frequency ranges and communication standards, reducing the complexity and requirements of the front-end circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If MIMO and higher bandwidths are implemented in modern communication standards, then communication capability is improved, but the size, power consumption, and cost of the uplink front-end increase
Solution Approach 1:
The patent divides the wide frequency range into multiple sub-ranges, with each transmit path configured to operate on a specific sub-range. This segmentation allows the front-end to handle wide bandwidth communications by breaking down the complex task into simpler, manageable frequency segments, reducing overall front-end complexity while maintaining high communication capability
Solution Approach 2:
The patent implements reconfigurable transmit paths that can be dynamically adjusted to support different frequency ranges and communication standards. This multi-functionality allows a single front-end architecture to adapt to various communication requirements (MIMO, carrier aggregation, dual connectivity) without requiring separate dedicated hardware for each feature, thereby improving versatility while controlling device complexity
2Adaptability or versatility
If MIMO and higher bandwidths are implemented in modern communication standards, then communication capability is improved, but power consumption of the uplink front-end increases
Solution Approach 1:
The patent employs dynamic reconfiguration of transmit paths based on the specific communication requirements. The system can adjust the number and configuration of active transmit paths according to the needed frequency range and modulation scheme, enabling power-efficient operation by activating only the necessary components for each transmission task rather than running all components at full power continuously
3Adaptability or versatility
If MIMO and higher bandwidths are implemented in modern communication standards, then communication capability is improved, but the cost of the uplink front-end increases
Solution Approach 1:
The patent implements reconfigurable transmit paths that can be dynamically adjusted to support different frequency ranges and communication standards. This multi-functionality allows a single front-end architecture to adapt to various communication requirements (MIMO, carrier aggregation, dual connectivity) without requiring separate dedicated hardware for each feature, thereby improving versatility while controlling device complexity
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.