Feedback Resource Range Determination for Wireless Signaling

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Solution Overview

Problem

Existing wireless communication systems face challenges in reliably and predictably handling feedback signaling in radio access networks, particularly in 5G networks, due to variable feedback sizes and scheduling complexities.

Innovation Solution

The method involves determining a feedback resource range for user equipment (UE) in a radio access network based on received feedback size and scheduling assignment indications, allowing for improved handling of feedback signaling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If feedback signaling is transmitted in parallel and multiplexed with data transmission and other control signaling, then communication efficiency is improved, but reliability and predictability of feedback signaling handling deteriorates

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidreliability of feedback signaling handling

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The feedback resource range is segmented from the total signaling resource range based on the feedback size indication. This segmentation allows the network node to allocate specific resources for feedback signaling within the multiplexed framework, ensuring reliable and predictable handling while maintaining overall communication efficiency.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The network node transmits a feedback size indication to the UE in advance before the actual feedback signaling transmission. This preliminary action enables the UE to determine the appropriate feedback resource range beforehand, ensuring reliable resource allocation and avoiding conflicts during multiplexed transmission.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If feedback size varies between different occurrences and transmission timing structures, then adaptability is improved, but device complexity increases

Engineering Contradiction:

Improveadaptability of feedback signalingVSAvoidcomplexity of feedback signaling handling

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The feedback resource range is dynamically determined based on the received feedback size indication and scheduling assignment indication. This dynamic adjustment allows the system to adapt to varying feedback sizes across different transmission timing structures while providing clear guidance to the UE through signaling, thereby managing device complexity.

Inventive Principle:

Principle #15Dynamics

3Reliability

If feedback resource range is determined based on feedback size indication and scheduling assignment indication, then reliability of feedback signaling handling is improved, but signaling overhead increases

Engineering Contradiction:

Improvereliability of feedback signaling handlingVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

The feedback size indication conveys essential information about the feedback signaling size using compact parameter representation. This allows the UE to determine the feedback resource range accurately without requiring extensive signaling, thus improving reliability while minimizing signaling overhead.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12250082B2Size indication for feedback signaling

Publication Date: 2025.03.11 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting feedback signaling utilizing a feedback resource range, the feedback resource range being determined based on a received feedback size indication and a received scheduling assignment indication. The feedback resource range being a part of a signaling resource range configured to the user equipment for transmission.