Power Control Adaptation for Wireless Uplink Coverage
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently adapting power control across different power modes, leading to suboptimal performance and increased power utilization in varying network conditions.
Innovation Solution
Implementing a method where user equipment (UE) and base stations can switch between multiple power modes by adjusting transmit power based on power control parameters, such as path-loss coefficients and power states, to maintain uplink coverage while reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If power control parameters are adjusted to reduce power usage, then energy consumption decreases, but uplink coverage may be compromised
Solution Approach 1:
The system dynamically switches between multiple power modes (first power mode with first power control parameters and second power mode with second power control parameters) based on current network conditions and coverage requirements. This allows the UE to adapt transmit power levels in real-time, reducing energy consumption when full power is not needed while maintaining coverage when required.
Solution Approach 2:
The invention changes power control parameters (such as transmit power, path-loss coefficients, power states) based on the selected power mode. By adjusting these parameters dynamically, the system optimizes the balance between energy consumption and uplink coverage performance according to actual network conditions.
2Adaptability or versatility
If multiple power modes are implemented with different power control parameters, then adaptability to network conditions improves, but device complexity increases
Solution Approach 1:
The power control system is segmented into multiple discrete power modes, each with predefined power control parameters. This segmentation allows the UE to select from predefined configurations rather than continuously adjusting parameters, simplifying the control logic while maintaining adaptability to different network conditions.
Solution Approach 2:
The power mode indication mechanism serves multiple functions: it selects power control parameters, indicates coverage requirements, and guides UE transmit power adjustment all through a single indication from the base station, reducing overall system complexity despite the multiple power modes.
3Reliability
If transmit power is increased to maintain coverage, then uplink coverage is maintained, but power utilization becomes suboptimal
Solution Approach 1:
The base station provides power mode indications to the UE based on observed uplink coverage conditions and network state. This feedback mechanism allows the UE to adjust its transmit power appropriately - using higher power only when coverage is compromised and lower power when coverage is sufficient, optimizing overall power utilization while maintaining reliability.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information associated with indicating a power mode, of a plurality of power modes, wherein the plurality of power modes is associated with a corresponding plurality of values for a power control parameter. The UE may transmit, using the power mode and a transmit power associated with the power mode and determined based at least in part on a power control parameter value, of the plurality of values for the power control parameter. Numerous other aspects are described.