Uplink Power Control Using Timing Advance and User Distance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing 5G NR cellular networks face inefficiencies in power control due to inadequate consideration of parameters in communication between user equipment and the network, leading to resource misuse and reduced communication quality.
Innovation Solution
Implementing a power control manager in the cellular network to determine parameters such as distance, timing advance, and resource allocation for each user equipment, allowing for smart uplink power control through power control commands to minimize interference and optimize transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional power control is used without considering timing advance and user distance, then device complexity is reduced, but uplink interference increases and system capacity deteriorates
Solution Approach 1:
The patent changes the parameters considered in power control from basic signal strength to include timing advance values and distance calculations. By incorporating these additional parameters, the system dynamically adjusts transmit power based on precise temporal and spatial information, reducing uplink interference while maintaining manageable device complexity through standardized processing procedures.
Solution Approach 2:
The system performs preliminary calculations of user distance and timing advance before power control decisions are made. By pre-computing these parameters and storing them for reference, the power control mechanism can quickly access relevant information without adding significant processing complexity during actual power adjustment, thereby reducing interference efficiently.
2Productivity
If smart uplink power control with multiple parameters is implemented, then uplink interference is reduced and system capacity improves, but device complexity increases
Solution Approach 1:
The patent segments the power control process into distinct functional modules: timing advance calculation, distance computation, interference assessment, and power adjustment. Each module handles a specific aspect independently, allowing the system to achieve high productivity through comprehensive parameter consideration while managing complexity through modular design and clear separation of concerns.
3Device complexity
If uniform power control is applied to all user equipment, then device complexity is minimized, but communication quality for distant users deteriorates
Solution Approach 1:
The patent applies local quality by tailoring power control parameters to each user's specific conditions. Instead of uniform power control, the system calculates individualized power adjustments based on each user's distance from the base station and timing advance value. This ensures optimal communication quality for both near and distant users while maintaining reasonable device complexity through systematic local adaptation.
Data Source
AI summary
Technologies for smart uplink power control in a cellular network are described. One method includes: determining a plurality of parameters of a shared channel associated with a base station in the cellular network, each parameter of the plurality of parameters characterizing at least one of: a distance to the base station from each user equipment (UE) of a plurality of UEs connected to the base station, a timing advance of a first UE of the plurality of UEs, or resource allocation to the first UE; generating, based on the plurality of parameters, a value of a power control command provided by the base station of the cellular network, wherein the value is specific to the first UE; and receiving, from the first UE, a message via the shared channel, wherein the message is transmitted under a transmission power calculated based on the value of the power control command.