Multi-Panel Power Headroom Reporting for Uplink Scheduling
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Solution Overview
Problem
Existing 5G mobile communication systems lack an effective method for base station configuration to optimize power control and maximize power control in terminals with multiple panels, particularly in multi-transmission and reception point scenarios.
Innovation Solution
A terminal reports a power headroom value based on multiple panels to the base station, enabling the base station to control and schedule uplink communication effectively, allowing for simultaneous use of multiple panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a terminal uses multiple panels for uplink transmission, then power control efficiency and communication reliability are improved, but the complexity of power management and reporting increases
Solution Approach 1:
The patent combines multiple power headroom values from different panels into a single effective power headroom value for reporting. Instead of managing and reporting separate PHR values for each panel, the terminal calculates one aggregated effective PHR that represents the overall power status across all panels, thereby reducing reporting complexity while maintaining accurate power control
Solution Approach 2:
The patent transforms multiple individual power headroom parameters into a single effective power headroom parameter. By changing the representation from multiple separate values to one aggregated value, the system simplifies the power management process while still capturing the essential power status information needed for reliable multi-panel communication
2Measurement precision
If a terminal reports separate power headroom values for each panel, then power control precision is improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent merges multiple panel-specific power headroom measurements into a single effective power headroom value for uplink grant allocation. This aggregation reduces the signaling overhead required to report power status while maintaining sufficient precision for effective power control across all panels
Solution Approach 2:
The effective power headroom value serves multiple functions simultaneously: it represents the overall power status of the terminal, enables uplink grant allocation, and supports power control for multiple panels. This multi-functional approach eliminates the need for separate reporting mechanisms for each panel, reducing signaling overhead while maintaining control precision
3Productivity
If base station allocates uplink grants based on effective power headroom, then power utilization efficiency is improved, but calculation and scheduling complexity increases
Solution Approach 1:
The patent changes the power control parameter from multiple separate PHR values to a single effective PHR value. This parameter transformation simplifies the base station's scheduling calculations while improving power utilization efficiency, as the effective PHR directly reflects the terminal's overall power availability for uplink transmission
Data Source
AI summary
The disclosure relates to a fifth generation (5G) or sixth generation (6G) communication system for supporting a higher data transmission rate. Disclosed is a method performed by a terminal in a communication system, including identifying a power headroom report (PHR), transmitting the PHR, and receiving uplink (UL) scheduling information related to the PHR, wherein the PHR is related to one power headroom value based on multiple panels of the terminal.