Dual RF Power Amplifier Transceivers for Multi-Standard Power Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing computing devices face inefficiencies in power consumption when communicating using multiple wireless standards due to the use of single transceiver chains with over-designed power amplifiers, which are not optimized for specific communication standards like Bluetooth Low Energy (BLE) and Bluetooth Classic.
Innovation Solution
Implementing a front-end transceiver architecture with separate radio-frequency power amplifiers optimized for different communication standards, allowing the device to select the appropriate transceiver chain and power amplifier based on the communication standard, thereby reducing power consumption by using the necessary power level for each standard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single transceiver chain with an over-designed power amplifier is used to support multiple wireless standards, then the device can communicate using various communication standards, but power consumption increases due to the amplifier not being optimized for specific standards
Solution Approach 1:
The transceiver is divided into multiple independent transceiver chains (first transceiver chain with first power amplifier, second transceiver chain with second power amplifier), each optimized for specific communication standards. This segmentation allows selective activation of appropriate chains based on the communication standard being used, preventing power waste from using an over-designed amplifier.
Solution Approach 2:
Each power amplifier is specifically optimized for its designated communication standard (first power amplifier for Bluetooth Low Energy, second power amplifier for Bluetooth Classic). This local optimization ensures that each amplifier operates at peak efficiency for its intended standard, reducing overall power consumption while maintaining versatility.
2Device complexity
If a single power amplifier is used for multiple communication standards, then device complexity is reduced, but communication efficiency decreases due to inappropriate power levels
Solution Approach 1:
The system dynamically selects which transceiver chain to activate based on the communication standard being used. The arbitration component enables dynamic switching between the first and second transceiver chains, ensuring that the appropriate power level and amplifier are used for each standard, thereby improving communication efficiency without requiring a permanently complex architecture.
3Reliability
If an over-designed power amplifier is used to ensure sufficient power for all standards, then reliability is improved, but energy waste increases due to unnecessary high power transmission
Solution Approach 1:
The system changes the operational parameters (power output level, amplifier selection) based on the communication standard being used. By adjusting which transceiver chain is active and at what power level, the system ensures reliable signal transmission for each standard while avoiding energy waste from using higher power levels than necessary.
Data Source
AI summary
This disclosure describes techniques for implementing and utilizing a transceiver in a communication device that has two separate radio-frequency (RF) power amplifiers that are optimized to transmit signals using separate communication standards. The power amplifiers may be designed to convert a lower-power RF signal into different higher-power signals according to different standard-mandated, output-power limits. In this way, a communication device may arbitrate between two transceiver chains that include respective power adapters in order to convert lower-power RF signals into different higher-power RF signals. The higher-power RF signals may have different output-power levels that are appropriate for the respective communication standards of the separate transceiver chains.