Multi-Panel Uplink Power Sharing for Simultaneous Beam Transmissions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of managing power control in multi-panel simultaneous transmissions in wireless systems, particularly in 5G communication systems, is exacerbated by the need for high-speed data transmission, increased user demand, and resource constraints, which can lead to inefficiencies and interference.
Innovation Solution
A Wireless Transmit/Receive Unit (WTRU) determines panel groups based on specific parameters and power capabilities, switches panels to RF chains, and manages power sharing through power headroom reports (PHRs) to optimize power usage during simultaneous transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If multiple panels transmit simultaneously to increase data rate, then transmission speed is improved, but power management complexity and interference increase
Solution Approach 1:
The patent segments the transmission system into multiple independent panels, each capable of simultaneous transmission. This allows the system to achieve higher transmission speeds through parallel transmissions while managing power complexity by treating each panel as a separate entity with its own power control mechanisms.
Solution Approach 2:
The patent implements dynamic power adjustment mechanisms where power allocation is continuously optimized based on real-time channel conditions, interference levels, and power availability. This dynamic approach allows the system to adapt power distribution across multiple panels, maintaining high transmission speeds while preventing power management complexity from becoming unmanageable.
2Speed
If power is increased for high-speed transmission, then data rate is improved, but energy efficiency deteriorates
Solution Approach 1:
The patent changes power allocation parameters dynamically based on transmission conditions. By adjusting power levels according to channel quality, distance, and traffic requirements, the system achieves high data rates when necessary while maintaining energy efficiency during normal operation, thus resolving the contradiction between speed and energy efficiency.
Solution Approach 2:
The patent implements periodic power adjustment cycles where power allocation is re-evaluated and optimized at regular intervals. This periodic action allows the system to maintain high data rates during critical periods while reducing power consumption during less demanding periods, thereby improving overall energy efficiency without sacrificing peak performance.
3Productivity
If simultaneous transmissions are performed to meet user demand, then productivity is improved, but interference increases
Solution Approach 1:
The patent introduces power control mechanisms as intermediary elements that mediate between simultaneous transmissions from multiple panels. These intermediaries adjust power levels to prevent interference while maintaining the productivity benefits of simultaneous transmissions, effectively resolving the contradiction between user service capacity and interference.
4Adaptability or versatility
If power sharing is implemented among multiple panels, then resource utilization is improved, but power control complexity increases
Solution Approach 1:
The patent segments power control into panel-specific control mechanisms, where each panel manages its own power allocation independently. This segmentation improves resource utilization by allowing flexible power distribution across panels while reducing overall complexity by avoiding the need for centralized control of all panels simultaneously.
Data Source
AI summary
A wireless transmit/receive unit (WTRU) may receive a first set of simultaneous uplink (UL) grants for transmitting first simultaneous transmissions using a first set of two or more beams. The WTRU may transmit a first power headroom report (PHR) including a first power sharing indication. The first power sharing indication may indicate a first power sharing status for the first simultaneous transmissions. The WTRU may receive a second set of simultaneous UL grants for transmitting second simultaneous transmissions. The second simultaneous transmissions may be transmitted using a second set of two or more beams. The WTRU may determine a second power sharing status for the second simultaneous transmissions. The WTRU may transmit a second PHR when the determined second power sharing status is different than the first power sharing status.