Terminal Panel Power Management for Energy Efficiency

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Solution Overview

Problem

In Rel. 15 of next-generation mobile communication systems, user equipment (UE) maintains multiple panels in a power-on state to facilitate beam management, leading to increased power consumption.

Innovation Solution

A terminal with a control section that determines whether to power on or off each panel and switches the power accordingly, allowing the UE to selectively use panels based on configuration information received from the base station.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple panels are kept in power-on state for beam management, then beam switching capability is improved, but power consumption increases

Engineering Contradiction:
Improvebeam switching capabilityVSAvoidpower consumption
Core Design Contradiction:
Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic power state management for panels, where the control section determines whether to power on or off each panel based on current communication needs. This allows panels to transition between power-on and power-off states dynamically, enabling beam switching capability when needed while suppressing power consumption when panels are not required for communication.

Inventive Principle:
Principle #15Dynamics

2Reliability

If multiple panels are kept in power-on state, then communication reliability is improved through panel switching, but energy efficiency deteriorates

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidenergy efficiency
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The system dynamically adjusts panel power states based on real-time communication requirements. The control section monitors communication status and determines whether to maintain panels in power-on state for reliability or switch them to power-off state to improve energy efficiency, achieving a dynamic balance between these two objectives.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250168773A1Terminal, radio communication method, and system
Publication Date: 2025.05.22 NTT DOCOMO INC
  • US20250168773A1 patent drawing
  • US20250168773A1 patent drawing
  • US20250168773A1 patent drawing

AI summary

A terminal is disclosed including a receiver that receives, from a first transmission/reception point (TRP), downlink control information (DCI) including first configuration information related to a first transmission configuration indication state (TCI state), and receives, from a second TRP, a DCI including second configuration information related to a second TCI state; and a processor that performs, simultaneously, transmission to the first TRP based on the first configuration information with transmission to the second TRP based on the second configuration information. In other aspects, a radio communication method and a system are also disclosed.