Beam-Specific Power Reporting for Multi-Beam 5G NR Control
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Solution Overview
Problem
Current 5G New Radio (NR) technologies lack mechanisms for identifying and reporting beam-specific Maximum Permissible Exposure (MPE) and Power Headroom Report (PHR) for multiple candidate beams, leading to inefficiencies in power control and increased overhead in wireless communications.
Innovation Solution
Implement systems and methods for reporting power-related information by identifying and reporting beam-specific MPE and PHR for each candidate beam, using enhanced Power Control (PC) parameters and re-designed MPE fields, and associating PC parameters with specific beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam-specific power information is reported for multiple candidate beams, then power control efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent segments power control information by associating it with specific beam states. Instead of reporting a single power value, the system divides power control into beam-specific components, allowing the network to receive targeted power information for each candidate beam state, thereby improving power control efficiency while managing overhead through selective reporting.
Solution Approach 2:
The patent applies local quality by making power control parameters beam-specific rather than global. Each beam state receives customized power control parameters (P0, alpha, PCMAX) tailored to its specific characteristics, enabling localized optimization of power control for each beam while avoiding the need to optimize all beams uniformly, thus balancing efficiency improvement with overhead control.
2Adaptability or versatility
If flexible beam update mechanism is implemented, then adaptability to changing beam conditions is improved, but system complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring multiple candidate beam states and their associated power control parameters before actual beam switching occurs. The network prepares a set of candidate beams with predetermined power control settings, allowing the UE to quickly switch between beams without complex real-time calculations, thereby achieving flexible beam updates while controlling system complexity through advance preparation.
Solution Approach 2:
The patent applies dynamics by enabling the beam set and associated power control parameters to be dynamically updated based on changing channel conditions and traffic requirements. The network can modify the candidate beam set and reconfigure power parameters adaptively, allowing the system to respond to varying conditions while maintaining manageable complexity through structured dynamic updates rather than complete reconfiguration.
Data Source
AI summary
A wireless communication method includes receiving, by a wireless communication device from a network, an indication of a candidate beam set comprising a first number of beam states; determining, by the wireless communication device, a second number of power-related information, each of which corresponds to a beam state in a reporting beam set determined based on the candidate beam set; and sending, by the wireless communication device to the network, a report comprising the power-related information, wherein at least one of the first number or the second number is a positive integer.