Multi-Antenna Coupling Signal Detection for Tx Power Routing
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Solution Overview
Problem
Current electronic devices face reduced throughput and inefficient signal transmission due to the lack of coupling signals from multiple antennas, leading to degraded Tx power and reduced communication efficiency.
Innovation Solution
The electronic device incorporates multiple antennas, a power amplifier, and a radio frequency integrated circuit (RFIC) with switches and circuitry to obtain and transmit coupling signals, allowing for efficient signal processing and identification of antenna states, thereby enhancing communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple antennas are used to transmit signals, then communication efficiency and throughput are improved, but device complexity increases due to additional switches and circuitry
Solution Approach 1:
The first switch is designed to perform multiple functions: it routes the power amplifier output to different antennas for signal transmission, and simultaneously routes coupling signals from different antennas to the RFIC for reception. This multi-functionality allows the single switch to replace what would otherwise require separate switching mechanisms, thereby improving communication efficiency through multiple antennas while limiting the increase in device complexity.
2Productivity
If coupling signals are obtained from multiple antennas, then signal throughput is improved, but insertion loss increases due to additional signal paths
Solution Approach 1:
The patent merges the transmission path and coupling signal reception path into a single unified circuit path. The same physical connection between the power amplifier, switch, antennas, and RFIC is used for both transmitting signals and obtaining coupling signals. This merging eliminates the need for separate coupling circuits for each antenna, thereby reducing insertion loss while still enabling throughput improvement through multi-antenna operation.
3Productivity
If Tx power is optimized across multiple antennas, then communication performance is improved, but measurement precision requirements increase for identifying antenna states
Solution Approach 1:
The system implements feedback by obtaining coupling signals from each antenna and using these signals to identify antenna states (such as which antenna is actively transmitting). The processor uses this feedback information to optimize Tx power distribution across the multiple antennas. The feedback mechanism enables automatic adaptation to antenna conditions, improving communication performance while reducing the burden on measurement precision requirements through intelligent power management.
Data Source
AI summary
An electronic device is provided. The electronic device includes a power amplifier (PA). The electronic device includes a first switch. The electronic device includes a second switch. The electronic device includes a plurality of antennas including a first antenna and a second antenna. The electronic device includes first circuitry coupled with the first antenna. The electronic device includes second circuitry capable of being coupled with the second antenna according to control of the second switch. The electronic device includes a radio frequency integrated circuit (RFIC). The electronic device includes at least one processor.