Multi-Panel Uplink PHR Reporting for Terminal Power Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In future radio communication systems, the reporting and calculation of Power Headroom Report (PHR) are unclear when multi-panel simultaneous uplink transmission is supported, leading to inappropriate transmission power control and reduced communication throughput.
Innovation Solution
A terminal with a control section that applies power headroom per panel and a transmitting section that sends a Medium Access Control Element (MAC CE) including the PHR per panel, enabling appropriate transmission power control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multi-panel simultaneous UL transmission is supported, then UL throughput and reliability are improved, but PHR reporting and calculation become unclear leading to inappropriate transmission power control
Solution Approach 1:
The patent segments the PHR reporting mechanism by introducing panel-specific PHR indicators. Each panel's power headroom is reported separately using panel IDs, allowing the base station to control transmission power for each panel independently. This segmentation resolves the ambiguity in power control when multiple panels transmit simultaneously, as each panel's power status is now distinctly tracked and managed.
2Productivity
If multi-panel simultaneous UL transmission is supported, then communication capacity is improved, but transmission control accuracy deteriorates due to unclear PHR reporting
Solution Approach 1:
The patent applies local quality by making PHR reporting panel-specific. Instead of a single aggregate PHR value, each panel has its own PHR indicator tied to a specific panel ID. This allows the system to maintain high communication capacity through multi-panel transmission while achieving precise measurement and reporting of power headroom for each individual panel, thus improving transmission control accuracy.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes: a control section that applies a power headroom report (PHR) per panel, when uplink (UL) simultaneous transmission from multi-pane is supported; and a transmitting section that transmits a Medium Access Control Control Element (MAC CE) including the PHR per panel. According to one aspect of the present disclosure, it is possible to appropriately perform transmission power control.