Frequency-Selective Rank Augmentation for Companion Retransmission

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently utilizing non-contiguous frequency segments for improved communication performance and power conservation in companion devices, leading to unnecessary power consumption and suboptimal bandwidth usage.

Innovation Solution

The use of companion devices to retransmit only indicated non-contiguous frequency segments of a communication bandwidth, allowing for power conservation and improved communication performance by adapting to unique channel conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If companion devices retransmit entire communication bandwidth, then communication performance is improved, but power consumption increases

Engineering Contradiction:

Improvecommunication performanceVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The communication bandwidth is divided into multiple frequency segments, and the companion device is configured to retransmit only specific non-contiguous frequency segments rather than the entire bandwidth. This segmentation allows selective retransmission of only those segments that improve communication performance, thereby reducing power consumption while maintaining reliability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different frequency segments are treated differently based on their channel conditions and contribution to communication performance. The network device identifies and configures only the specific frequency segments that provide performance improvement, applying local optimization rather than uniform treatment of all bandwidth segments.

Inventive Principle:

Principle #3Local quality

2Use of energy by moving object

If companion devices retransmit selected frequency segments, then power is conserved, but frequency resource utilization must be optimized

Engineering Contradiction:

Improvepower conservationVSAvoidfrequency resource utilization

Core Design Contradiction:

Use of energy by moving objectVSProductivity

Solution Approach 1:

The network device performs preliminary identification and configuration of the optimal frequency segments before retransmission. By pre-determining which non-contiguous frequency segments will improve communication performance, the system avoids wasteful retransmission of unnecessary segments, thereby optimizing frequency resource utilization while conserving power.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses channel state information and communication performance feedback to dynamically identify and configure the frequency segments that need retransmission. This feedback mechanism ensures that only the necessary frequency segments are selected for retransmission, optimizing both power consumption and frequency resource utilization.

Inventive Principle:

Principle #23Feedback

3Productivity

If non-contiguous frequency segments are used, then bandwidth usage is optimized, but system complexity increases

Engineering Contradiction:

Improvebandwidth usage efficiencyVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The network device acts as an intermediary that manages the complexity of identifying, selecting, and configuring non-contiguous frequency segments. By centralizing the segment selection function in the network device rather than requiring complex processing at the companion device, the system achieves efficient bandwidth usage while minimizing the complexity burden on individual devices.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250293842A1Frequency-selective rank augmentation

Publication Date: 2025.09.18 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive an indication of a plurality of frequency segments, wherein at least a first frequency segment of the plurality of frequency segments and a second frequency segment of the plurality of frequency segments are non-contiguous in frequency with one another. The wireless communication device may transmit a communication associated with the plurality of frequency segments. Numerous other aspects are described.