Dynamic Transmit Power Adjustment for 5G UE
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Solution Overview
Problem
Current wireless communication technologies face challenges in dynamic transmit power adjustment, particularly in 5G networks, leading to issues such as increased RF emissions, reduced uplink coverage, and higher power consumption due to inflexible worst-case maximum power reduction (A-MPR) settings, which do not account for actual network signaling and transmitter front-end configurations.
Innovation Solution
The implementation of a dynamic transmit power adjustment (DTPA) module that uses an adaptive algorithm to optimize A-MPR based on various input parameters, including baseband and transmitter front-end settings, 3GPP, and regulatory constraints, to determine instantaneous A-MPR and provide feedback for optimal UE transmit power configuration, thereby enhancing uplink coverage and reducing RF emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If worst-case maximum power reduction (A-MPR) settings are used, then RF emissions are reduced, but uplink coverage deteriorates and power consumption increases
Solution Approach 1:
The patent implements dynamic A-MPR adjustment based on actual network conditions, transmitter front-end configurations, and baseband parameters. The system transitions from static worst-case A-MPR settings to dynamic adaptation, allowing A-MPR values to be optimized in real-time according to actual operating conditions, thereby resolving the contradiction between RF emission reduction and uplink coverage maintenance
Solution Approach 2:
The system changes the A-MPR parameter based on multiple input parameters including network signaling, transmitter front-end settings, and baseband configurations. By adjusting the A-MPR parameter dynamically rather than using fixed worst-case values, the system achieves both reduced RF emissions and maintained uplink coverage through optimized parameter selection
2Object-generated harmful factors
If worst-case maximum power reduction (A-MPR) settings are used, then RF emissions are reduced, but power consumption increases
Solution Approach 1:
The patent implements dynamic A-MPR adjustment that adapts to actual network conditions and device configurations. By transitioning from static worst-case settings to dynamic optimization, the system reduces both RF emissions and power consumption simultaneously through real-time adaptation to actual operating conditions
Solution Approach 2:
The system dynamically adjusts the A-MPR parameter based on actual network signaling, transmitter front-end settings, and baseband parameters. This parameter optimization enables the system to achieve lower RF emissions and reduced power consumption by selecting appropriate A-MPR values rather than applying conservative worst-case reductions
3Device complexity
If static A-MPR settings are used, then device complexity is reduced, but adaptability to different network configurations deteriorates
Solution Approach 1:
The patent implements a self-service mechanism where the UE autonomously determines optimal A-MPR values based on received network signaling and its own transmitter front-end configurations. The device self-adjusts power parameters without requiring complex external control, achieving high adaptability through autonomous decision-making based on actual operating conditions
Solution Approach 2:
The system incorporates feedback mechanisms where the UE monitors network signaling, baseband parameters, and transmitter configurations to dynamically adjust A-MPR settings. This feedback-driven adaptation enables the device to respond to changing network conditions and configurations, achieving versatility without proportionally increasing complexity
Data Source
AI summary
An apparatus of user equipment (UE) includes processing circuitry coupled to a memory, where to configure the UE for dynamic transmit power adjustment, the processing circuitry is to decode baseband configuration information received from a base station. The baseband configuration information including at least a modulation and coding scheme (MCS), resource block (RB) allocation, and carrier assignment for uplink (UL) transmission and downlink (DL) reception. A communication mode is selected based on the baseband configuration information. An additional maximum power reduction (A-MPR) is determined based on the baseband configuration information and the selected communication mode. UL data is encoded for transmission to the base station via the selected communication mode and using transmit power adjusted based on the determined A-MPR. New signaling enhancements between the UE and the network (on a Uu interface) and between two UEs (on a PC5 sidelink interface) are also disclosed.