Beamforming Amplitude Control Limitation for Wireless UEs

Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently performing beamforming due to limitations in amplitude control capabilities, which affect power consumption, software complexity, and performance in uplink and downlink communications.

Innovation Solution

The implementation of an apparatus and method for wireless communication that allows a user equipment (UE) to transmit an indication of its amplitude control capability for beamforming to a network entity, and subsequently performs beamforming based on the amplitude control limitation of that capability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If full amplitude control capability is used for beamforming, then beamforming performance is improved, but power consumption increases and software complexity increases

Engineering Contradiction:

Improvebeamforming performanceVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies partial action by implementing amplitude control limitation where the UE deliberately uses only a subset of the full amplitude control capability for beamforming operations. This partial utilization reduces power consumption and software complexity while maintaining acceptable beamforming performance for the given communication scenario, avoiding the excessive action of using the complete capability when not necessary.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent changes the parameter of amplitude control capability utilization by introducing an amplitude control limitation parameter that modifies the full capability range. The UE adjusts the effective amplitude control range based on communication requirements, transforming the fixed full-capability approach into a variable parameter approach that optimizes the balance between performance and resource consumption.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If full amplitude control capability is used for beamforming, then beamforming performance is improved, but software complexity increases

Engineering Contradiction:

Improvebeamforming performanceVSAvoidsoftware complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies partial action by implementing amplitude control limitation where the UE deliberately uses only a subset of the full amplitude control capability for beamforming operations. This partial utilization reduces power consumption and software complexity while maintaining acceptable beamforming performance for the given communication scenario, avoiding the excessive action of using the complete capability when not necessary.

Inventive Principle:

Principle #16Partial or excessive action

Solution Approach 2:

The patent changes the parameter of amplitude control capability utilization by introducing an amplitude control limitation parameter that modifies the full capability range. The UE adjusts the effective amplitude control range based on communication requirements, transforming the fixed full-capability approach into a variable parameter approach that optimizes the balance between performance and resource consumption.

Inventive Principle:

Principle #35Parameter changes

3Use of energy by moving object

If amplitude control limitation is applied, then power consumption is reduced and software complexity is lowered, but beamforming performance may be compromised

Engineering Contradiction:

Improvepower consumptionVSAvoidbeamforming performance

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The patent applies dynamics by making the amplitude control limitation adaptive rather than fixed. The UE dynamically adjusts the amplitude control range based on real-time communication conditions, channel characteristics, and performance requirements. This dynamic adjustment allows the system to optimize the balance between power consumption and beamforming performance for each specific operational context.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements feedback mechanisms where the UE monitors beamforming performance metrics and adjusts the amplitude control limitation accordingly. The network entity provides feedback on communication quality, and the UE uses this information to modulate the amplitude control range, ensuring that performance requirements are met while minimizing power consumption through continuous closed-loop optimization.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS12309716B2Beamforming using an amplitude control limitation of an amplitude control capability

Publication Date: 2025.05.20 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a network entity, an indication of an amplitude control capability of the UE for beamforming. The UE may perform, to the network entity, the beamforming based at least in part on an amplitude control limitation of the amplitude control capability. Numerous other aspects are described.