Uplink Scheduling Request Adaptive Threshold Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional uplink scheduling methods in wireless communication systems perform scheduling requests regardless of the channel state, leading to decreased service quality and energy efficiency, especially for user equipment with low battery levels.
Innovation Solution
A method for selectively performing uplink scheduling requests based on an adaptive uplink channel state threshold value, calculated using long-term and short-term average channel states, and considering the remaining battery level, to determine optimal transmission times in better channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If uplink scheduling request is transmitted regardless of channel state, then transmission reliability is improved, but energy consumption increases and service quality decreases
Solution Approach 1:
The patent changes the parameter of channel state threshold dynamically based on battery level. When battery level is high, a lower threshold is used allowing more transmissions; when battery level is low, a higher threshold is used restricting transmissions to better channel conditions only. This resolves the contradiction by adapting the transmission criterion parameter to the energy state of the device.
Solution Approach 2:
The patent introduces dynamic adaptation of the channel state threshold based on real-time battery level monitoring. The threshold is not fixed but changes dynamically according to the device's energy state, allowing the system to optimize between reliability and energy consumption in real-time rather than using a static approach.
2Productivity
If uplink scheduling request is transmitted in poor channel state, then transmission opportunity is improved, but service quality decreases
Solution Approach 1:
The patent modifies the channel state threshold parameter based on battery level to control transmission timing. By raising the threshold when battery is low, the system selectively delays transmissions until better channel conditions occur, thereby maintaining service quality while still providing transmission opportunities when energy permits.
3Speed
If conventional scheduling request method is used, then transmission speed is improved, but energy efficiency decreases
Solution Approach 1:
The patent implements dynamic threshold adjustment based on battery level to optimize the trade-off between transmission speed and energy efficiency. The system maintains fast transmission response when energy is abundant but automatically slows down and waits for better channel conditions when energy is scarce, thereby improving overall energy efficiency without completely sacrificing transmission speed.
Solution Approach 2:
The channel state threshold parameter is changed dynamically according to battery level, allowing the system to adapt its transmission aggressiveness. This parameter change enables the system to achieve better energy efficiency by restricting transmissions to more favorable conditions when energy is limited.
Data Source
AI summary
Provided is a method for selectively performing an uplink scheduling request (SR) by a terminal on the basis of an adaptive uplink channel state threshold value, and an apparatus supporting the same. The terminal may calculate an uplink channel state threshold value on the basis of a variation of a short-term average uplink channel state and a long-term average uplink channel state, determine an uplink channel state predictive value on the basis of a downlink channel state, and determine whether to perform an uplink scheduling request on the basis of the uplink channel state predictive value and the uplink channel state threshold value.