Wireless Power Control Reset via Physical Layer Signaling
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Solution Overview
Problem
Current power control mechanisms in wireless communication systems face challenges in dynamically adjusting reference signals and reducing power consumption at base stations, leading to potential transmission errors and traffic interruptions when using physical layer or MAC layer signaling.
Innovation Solution
A method involving receiving a signaling to reset the power control adjustment state to 0 and transmitting a radio signal with a specific power, using physical layer or MAC layer signaling to indicate a reference signal resource group, allowing for flexible and dynamic reference signal adjustments and measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If physical layer or MAC layer signaling is used to dynamically control reference signals, then power consumption is reduced and flexibility is improved, but transmission errors occur and power control accuracy deteriorates
Solution Approach 1:
The patent applies preliminary action by having the base station explicitly indicate whether to reset the power control adjustment state before the UE performs power control calculations. This pre-notification mechanism allows the UE to properly handle the state reset, avoiding transmission errors while maintaining the benefits of dynamic reference signal control for power conservation.
2Use of energy by stationary object
If reference signals are switched off or spatial relation is changed to save power, then energy efficiency is improved, but measurement accuracy and power control precision deteriorate
Solution Approach 1:
The patent implements feedback by establishing a clear control mechanism where the base station's indication to reset the power control adjustment state is properly received and processed by the UE. This feedback loop ensures that measurement operations continue with accurate reference signals even when power conservation techniques are applied, maintaining measurement precision while reducing base station power consumption.
3Ease of operation
If accumulation-based power control is used, then power adjustment is simplified, but errors propagate and cause traffic interruptions when reference signal control changes
Solution Approach 1:
The patent resolves this contradiction by applying preliminary action through explicit pre-indication from the base station about whether to reset the power control adjustment state. This allows the accumulation-based power control mechanism to operate simply while preventing error propagation that would cause traffic interruptions, as the UE can properly handle state resets in advance.
Data Source
AI summary
The present application discloses a method and a device for wireless communications, including: receiving a first signaling; and as a response to receiving the first signaling, resetting a first power control adjustment state to 0; and transmitting a first radio signal with a first power; herein, the first signaling is a physical layer signaling, or the first signaling is a MAC layer signaling; the first signaling is used to indicate a first RS resource group; the first power control adjustment state is used for calculating the first power. The present application can be more energy-saving through indication of the first signaling.