Antenna Panel Uplink Power Control for Uneven Path Loss

Solution Overview

Problem

In wireless communication systems, particularly in New Radio (NR) systems using millimeter waves, path losses vary among different transmission-reception points (TRPs), leading to issues such as transmission failures due to insufficient power, adjacent channel interference, and energy waste due to excessive power.

Innovation Solution

A method and apparatus for configuring uplink transmission power with antenna panel granularity, where a network device sends specific power configuration information to a user device, allowing it to control the uplink transmission power of each antenna panel individually based on its capabilities, ensuring power allocation matches the panel's transmission capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single uplink transmission power configuration is used for all antenna panels, then the configuration is simple, but transmission failures occur due to insufficient power for some panels with higher path loss

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidpower configuration complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the uplink transmission power configuration into separate configurations for each antenna panel. The network device sends N pieces of uplink transmission power configuration information corresponding to N antenna panels respectively, allowing each panel to have its own optimized power setting based on its specific path loss characteristics, thereby improving transmission reliability without excessive complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by allowing different antenna panels to have different transmission power configurations tailored to their specific conditions. Each antenna panel's power configuration is optimized independently based on its path loss to the network device, ensuring that panels with higher path loss receive higher power allocations while panels with lower path loss use lower power, thus improving overall transmission reliability

Inventive Principle:

Principle #3Local quality

2Reliability

If uplink transmission power is increased for all antenna panels to ensure sufficient power for high path loss panels, then transmission reliability improves, but adjacent channel interference increases and energy is wasted

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidadjacent channel interference

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies local quality by allowing different antenna panels to have different transmission power configurations tailored to their specific conditions. Each antenna panel's power configuration is optimized independently based on its path loss to the network device, ensuring that panels with higher path loss receive higher power allocations while panels with lower path loss use lower power, thus improving overall transmission reliability

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent uses partial action by allocating transmission power selectively to each antenna panel based on its specific needs rather than uniformly increasing power for all panels. This ensures sufficient power for high path loss panels while avoiding excessive power allocation to low path loss panels, thereby reducing adjacent channel interference and energy waste

Inventive Principle:

Principle #16Partial or excessive action

3Reliability

If uplink transmission power is increased for all antenna panels to ensure sufficient power for high path loss panels, then transmission reliability improves, but energy consumption increases

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidenergy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies local quality by allowing different antenna panels to have different transmission power configurations tailored to their specific conditions. Each antenna panel's power configuration is optimized independently based on its path loss to the network device, ensuring that panels with higher path loss receive higher power allocations while panels with lower path loss use lower power, thus improving overall transmission reliability

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The patent uses partial action by allocating transmission power selectively to each antenna panel based on its specific needs rather than uniformly increasing power for all panels. This ensures sufficient power for high path loss panels while avoiding excessive power allocation to low path loss panels, thereby reducing adjacent channel interference and energy waste

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20260046783A1Method and apparatus for sending uplink transmission power configuration, method and apparatus for receiving uplink transmission power configuration, and system

Publication Date: 2026.02.12 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

AI summary

The present disclosure is applied to a wireless communication system. Provided are a method and apparatus for sending an uplink transmission power configuration, a method and apparatus for receiving an uplink transmission power configuration, and a system. The method for receiving an uplink transmission power configuration comprises: receiving N pieces of uplink transmission power configuration information sent by a network device, wherein the uplink transmission power configuration information is used for configuring the uplink transmission power of one of N antenna panels of a user equipment; and controlling the uplink transmission power of the N antenna panels according to the N pieces of uplink transmission power configuration information.