Uplink Power Control for Beam Switching in 5G Base Stations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in controlling uplink transmit power when beam information changes due to unified TCI signaling, which affects transmission reliability.
Innovation Solution
A method for controlling uplink transmit power through unified TCI signaling involves configuring a list of TCI states via higher layer signaling, activating a part of the list through MAC-CE, changing beams via L1 signaling, and adjusting power control based on configuration information and changed beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If unified TCI signaling is used to change beam information, then beam switching capability is improved, but uplink transmit power control reliability deteriorates
Solution Approach 1:
The patent introduces a feedback mechanism where the terminal reports whether to apply power control based on the TCI state change. The base station receives this feedback and adjusts power control commands accordingly, ensuring reliable power control despite beam switching through unified TCI signaling
Solution Approach 2:
The patent changes the parameter application logic by introducing a flag that indicates whether power control should be applied when TCI state changes occur. This parameter change allows the system to maintain power control reliability while enabling beam switching through unified TCI signaling
2Reliability
If power control is applied during beam change, then transmission reliability is improved, but power control complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring power control parameters and preparing power control commands before beam changes occur. The terminal and base station have pre-established power control configurations that can be quickly applied when beam switching is detected, reducing real-time processing complexity while maintaining reliability
Data Source
AI summary
The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. Various embodiments of the present disclosure can provide a power control method and device in a wireless communication system. Through the embodiments of the present disclosure, a signal transmission method of a base station in a 5G mobile communication system is defined, and thus higher reliability in uplink transmission can be achieved through transmission power control according to a set beam.