User Device Signaling Value Selection for Transmission Power Control

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

User apparatuses in LTE systems face challenges in understanding new Network Signaling (NS) values and applying appropriate Additional-Maximum Power Reduction (A-MPR) when regulations change or new bands are introduced, leading to potential non-compliance with regulations and unclear transmission power control.

Innovation Solution

A user apparatus is equipped with reception, selection, and control means to receive and prioritize multiple NS values from the base station, selecting the highest priority value applicable for transmission power control, ensuring proper operation and compliance with transmission power regulations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple NS values are broadcasted from the base station to cover new bands and regulations, then the adaptability of the network to different regions and regulations is improved, but the complexity of NS value selection and application in the user apparatus increases

Engineering Contradiction:
Improvenetwork adaptability to different bands and regulationsVSAvoidNS value selection and application complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by introducing a priority order parameter for NS values. The base station broadcasts multiple NS values with different priorities, and the user apparatus selects the highest priority NS value that is applicable to its current band and capabilities. This resolves the contradiction by providing a systematic method (priority-based selection) to manage multiple NS values, thereby maintaining network adaptability while reducing device complexity through automated selection.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the user apparatus applies the highest priority NS value from multiple received values, then the transmission power control compliance with regulations is improved, but the risk of applying an inapplicable NS value increases

Engineering Contradiction:
Improvetransmission power control complianceVSAvoidrisk of applying inapplicable NS value
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent implements feedback by having the user apparatus verify whether the selected highest priority NS value is applicable to its current operating conditions (band, capabilities). The apparatus only applies the NS value after confirmation of applicability, creating a feedback loop that prevents erroneous application. This resolves the contradiction by ensuring compliance through verification while minimizing the risk of applying inappropriate NS values.

Inventive Principle:
Principle #23Feedback

3Device complexity

If the network broadcasts only a single NS value, then the simplicity of the signaling system is maintained, but the ability to support new bands and regulatory requirements is limited

Engineering Contradiction:
Improvesignaling system simplicityVSAvoidsupport for new bands and regulations
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by making the NS value signaling system flexible and adaptive. Instead of broadcasting a fixed single NS value, the base station dynamically broadcasts multiple NS values with different priorities based on current network conditions, supported bands, and regulatory requirements. The user apparatus dynamically selects the appropriate NS value based on its capabilities and current operating context. This resolves the contradiction by enabling support for new bands and regulations while maintaining signaling simplicity through the structured priority-based approach.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3217729B1User device, mobile communication system, and signaling value application method
Publication Date: 2020.04.15 NTT DOCOMO INC
  • EP3217729B1 patent drawingFigure 1
  • EP3217729B1 patent drawingFigure 2~3
  • EP3217729B1 patent drawingFigure 4

AI summary

A user apparatus in a mobile communication system including a base station and the user apparatus, including: reception means configured to receive a plurality of prioritized signaling values corresponding to a band that the user apparatus uses from the base station; selection means configured to select a signaling value of the highest priority from among signaling values that the user apparatus can apply in the plurality of signaling values; and control means configured to perform control of transmission power by applying the signaling value selected by the selection means.