Terminal Power Capability Signaling for Accurate Uplink Scheduling

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Solution Overview

Problem

Existing wireless communication systems face challenges in accurately controlling the transmit power of terminal devices due to unknown uplink duty cycle capabilities, leading to inaccurate power scheduling and potential electromagnetic radiation hazards.

Innovation Solution

The terminal device transmits first indication information to the network device, indicating its maximum transmit power capability, allowing the network device to perform precise power scheduling and mitigate electromagnetic radiation risks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the network device performs uplink scheduling without knowing the terminal device's uplink duty cycle capability, then the scheduling process is simple, but the power control accuracy deteriorates

Engineering Contradiction:
Improvepower control accuracyVSAvoidscheduling complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The terminal device reports its maximum transmit power capability and uplink duty cycle capability to the network device in advance. This preliminary information exchange enables the network device to perform accurate power scheduling without adding complexity to the scheduling process, as all necessary parameters are provided beforehand by the terminal device.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The terminal device provides feedback information about its maximum transmit power capability and uplink duty cycle capability to the network device. This feedback mechanism enables the network device to adjust uplink scheduling parameters accurately, improving power control accuracy while maintaining scheduling simplicity through standardized feedback protocols.

Inventive Principle:
Principle #23Feedback

2Object-affected harmful factors

If the terminal device transmits without accurate power control information, then the transmission process is simple, but electromagnetic radiation safety deteriorates

Engineering Contradiction:
Improveelectromagnetic radiation safetyVSAvoidpower control complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The terminal device reports its maximum transmit power capability and uplink duty cycle capability to the network device in advance. This preliminary action enables the network device to set appropriate power levels that ensure electromagnetic radiation safety without adding complexity to the transmission process, as safety parameters are established beforehand.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The network device adjusts transmission parameters (power levels, duty cycle) based on the terminal device's reported capabilities. By changing these parameters according to standardized capability information, the system ensures electromagnetic radiation safety while maintaining transmission simplicity through automated parameter adjustment.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20250344163A1Wireless communication methods, terminal devices and network devices
Publication Date: 2025.11.06 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US20250344163A1 patent drawing
  • US20250344163A1 patent drawing

AI summary

Provided in the present application are wireless communication methods, terminal devices, and network devices. A method comprises: a terminal device sends first indication information to a network device, the first indication information being used for indicating first information, and the first information being related to the maximum transmission power capability of the terminal device.