Transmission Size Indication for 5G Feedback Signaling

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Solution Overview

Problem

In wireless communication systems, particularly in 5G radio access networks, feedback signaling is often variable and multiplexed with other transmissions, leading to confusion and inefficiencies in resource allocation and decoding, resulting in potential loss of signaling and resource wastage due to incorrect assumptions about signaling structure and size.

Innovation Solution

The approach involves providing a transmission size indication for feedback signaling, allowing radio nodes to accurately handle and decode feedback information, reducing confusion between different channels and minimizing signaling overhead by configuring feedback resource ranges based on scheduled acknowledgement processes and size indications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If feedback signaling is multiplexed with other transmissions in parallel, then resource utilization is improved, but confusion between radio nodes regarding transmission structures and resources occurs

Engineering Contradiction:

Improveresource utilizationVSAvoidtransmission structure clarity

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

A transmission size indication is introduced as an intermediary element that mediates between the feedback signaling and the receiving radio node. This indication provides explicit information about the size of feedback signaling, allowing the receiving node to correctly interpret the multiplexed transmission structure without confusion, thus maintaining reliability while enabling resource-efficient multiplexing

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If feedback signaling size is variable over time, then adaptability to different channel conditions is improved, but confusion and errors in decoding occur due to incorrect assumptions about signaling structure

Engineering Contradiction:

Improvefeedback signaling adaptabilityVSAvoidsignaling size accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The transmission size indication is provided in advance as preliminary information before the actual feedback signaling is processed. This allows the receiving radio node to预先 know the expected size of feedback signaling, enabling accurate decoding even when the size varies over time due to different channel conditions or acknowledgment processes, thus preventing errors from incorrect assumptions

Inventive Principle:

Principle #10Preliminary action

3Measurement precision

If downlink control signaling is increased to manage feedback signaling, then control accuracy is improved, but downlink resource consumption increases

Engineering Contradiction:

Improvecontrol signaling accuracyVSAvoiddownlink control signaling volume

Core Design Contradiction:

Measurement precisionVSQuantity of substance

Solution Approach 1:

The transmission size indication is extracted from downlink control signaling and placed in uplink signaling instead. This extraction reduces the volume of downlink control signaling while maintaining the necessary control accuracy, as the size information is now provided by the transmitting node in its uplink transmission rather than being conveyed separately through downlink control channels

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentEP3632022B1Control signaling size

Publication Date: 2024.01.17 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

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AI summary

There is disclosed a method of operating a radio node (10) in a radio access network, the method comprising transmitting feedback signaling utilising a feedback resource range, wherein transmitting the feedback signaling comprises a transmitting a transmission size indication indicating a size of the feedback signaling. The disclosure also pertains to related devices and methods.