Dynamic Uplink Transmission Switching Frequency Bands

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Solution Overview

Problem

Current wireless communication systems face challenges in efficiently managing uplink transmission switching across multiple frequency bands, leading to increased complexity and resource consumption.

Innovation Solution

A method and apparatus for dynamic uplink transmission switching, where a user equipment (UE) transmits indications of supported frequency bands and subsets thereof, allowing for dynamic switching between frequency bands, thereby optimizing resource usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If dynamic uplink transmission switching is implemented across all frequency bands, then spectral efficiency and resource utilization are improved, but device complexity and power consumption increase

Engineering Contradiction:
Improvespectral efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent applies local quality by enabling dynamic uplink transmission switching selectively on specific frequency bands (e.g., FDD bands) while keeping other bands (e.g., TDD bands) in static mode. This allows the system to optimize spectral efficiency only where dynamic switching provides benefit, rather than uniformly across all bands, thereby reducing overall device complexity while maintaining productivity gains in appropriate scenarios

Inventive Principle:
Principle #3Local quality

2Productivity

If dynamic uplink transmission switching is implemented across all frequency bands, then resource utilization is improved, but power consumption increases

Engineering Contradiction:
Improveresource utilizationVSAvoidpower consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The patent implements dynamic switching only on frequency bands where it provides resource utilization benefits, such as FDD bands with asymmetric uplink/downlink traffic patterns. By applying dynamic switching locally to specific bands rather than globally across all bands, the system improves resource utilization where needed while avoiding unnecessary power consumption on bands where static configuration suffices

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If dynamic uplink transmission switching is implemented, then adaptability to different traffic patterns is improved, but overhead for managing multiple frequency bands increases

Engineering Contradiction:
Improveadaptability to traffic patternsVSAvoidoverhead for managing frequency bands
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies dynamic switching selectively to frequency bands with specific characteristics (e.g., FDD bands with varying uplink/downlink traffic demands) while maintaining static configuration on other bands. This localized approach enables adaptability to different traffic patterns where beneficial, while reducing the overhead associated with managing dynamic switching across all bands uniformly

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS20250151064A1Techniques for dynamic uplink transmission switching
Publication Date: 2025.05.08 QUALCOMM INC
  • US20250151064A1 patent drawing
  • US20250151064A1 patent drawing
  • US20250151064A1 patent drawing

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a set of frequency bands supported for uplink transmission switching between frequency bands, the frequency bands including one or more bandwidth parts. The UE may transmit an indication of a subset of the set of frequency bands, the subset supported for dynamic uplink transmission switching between the frequency bands. The UE may transmit one or more uplink communications via one or more frequency bands of the subset of the set of frequency bands. Numerous other aspects are described.