Terminal Transmission Link Switching for Low-Power PA Bypass
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Solution Overview
Problem
Existing transmission link technologies suffer from low power amplifier efficiency (PAE) at low output signal powers, leading to excessive power consumption and energy inefficiency in terminals.
Innovation Solution
A method and apparatus that determine the transmit power class of a terminal based on power configuration information, controlling signal amplification through a power amplifier only when necessary, thereby reducing power consumption at low transmit power classes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the power amplifier is used to amplify signals at low transmit power levels, then the signal transmission function is maintained, but energy consumption efficiency deteriorates due to excessive power consumption
Solution Approach 1:
The patent implements dynamic switching between two transmission modes: power amplifier amplification mode for high power levels and direct transmission mode for low power levels. The terminal determines the current power level and dynamically selects the appropriate transmission mode, making the system adaptable to different operating conditions rather than using a fixed amplification approach.
Solution Approach 2:
The patent changes the operational parameter of signal amplification by introducing a threshold-based decision mechanism. When the power level exceeds the threshold, power amplifier amplification is applied; when it falls below the threshold, direct transmission is used. This parameter-based switching optimizes energy efficiency while maintaining transmission reliability.
2Power
If the power amplifier is continuously operated, then signal transmission capability is ensured, but power consumption increases excessively at low output signal powers
Solution Approach 1:
The patent applies partial action by selectively enabling power amplifier amplification only when necessary (above threshold power levels). For low power level transmissions, the system uses direct transmission without amplification, avoiding excessive energy consumption while still meeting the minimum signal transmission requirements.
Solution Approach 2:
The patent extracts the amplification function from the continuous operation requirement by introducing a conditional switching mechanism. The power amplifier is taken out of the transmission path when not needed (below threshold), and only inserted when the power level requires amplification, thereby eliminating unnecessary energy loss.
3Productivity
If signal amplification is applied at all power levels, then transmission coverage is maximized, but energy wastage occurs at low power levels below 15 dBm
Solution Approach 1:
The patent applies different transmission qualities to different power level ranges. For low power levels (below threshold), direct transmission with no amplification is used. For high power levels (above threshold), power amplifier amplification is applied to maximize coverage. This local differentiation of transmission quality optimizes both coverage and energy efficiency.
Solution Approach 2:
The patent segments the power level range into two distinct regions: a low power region (below threshold) using direct transmission and a high power region (above threshold) using power amplifier amplification. This segmentation allows the system to apply the appropriate transmission method to each segment, avoiding energy wastage in the low power region while maintaining coverage in the high power region.
Data Source
AI summary
The present application discloses a transmission link processing method and apparatus and a terminal. The method includes: determining, by a terminal, a transmit power level of the terminal according to power configuration information; and control, when the transmit power level of the terminal is a first transmit power level, a signal output by the transceiver to not be amplified by the power amplifier; otherwise, controls the signal output by the transceiver to be amplified by the power amplifier, where at the first transmit power level, maximum output power of the terminal is less than a first threshold.