Radio Device Segmentation for Latency-Aware Data Transmission

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Solution Overview

Problem

Current encoding and retransmission schemes in wireless communications networks are not optimal for delay-sensitive application traffic, as they do not account for application layer data unit boundaries, leading to inefficient handling of latency requirements.

Innovation Solution

A radio device determines different transmission parameters for different parts of an application data unit based on varying latency requirements, allowing for more flexible encoding and retransmission schemes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If current encoding and retransmission schemes are used that are unaware of application layer data unit boundaries, then the system maintains simplicity in transmission handling, but the delay performance for delay-sensitive applications deteriorates

Engineering Contradiction:

Improvetransmission delayVSAvoidtransmission parameter management

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The patent segments the application data unit into multiple parts (first part, second parts) and assigns different transmission parameters to each segment based on their specific latency requirements. This segmentation allows the system to optimize transmission for each part individually, improving overall delay performance while maintaining manageable complexity through structured parameter assignment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by determining different transmission parameters for different parts of the application data unit. Specifically, the first part receives first transmission parameters optimized for its latency requirement, while second parts receive second transmission parameters optimized for their latency requirements. This localized optimization improves delay performance without requiring complete redesign of the entire transmission system.

Inventive Principle:

Principle #3Local quality

2Reliability

If different transmission parameters are determined for different parts of application data unit, then the latency performance improves, but the complexity of transmission parameter management increases

Engineering Contradiction:

Improvelatency requirement fulfillmentVSAvoidparameter determination process

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the application data unit into distinct segments (first part and second parts) that can be independently processed with different transmission parameters. This segmentation enables the system to meet diverse latency requirements for different parts while maintaining a systematic approach to parameter management, balancing reliability improvement with controlled complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent changes transmission parameters (such as encoding schemes, modulation formats, or resource allocation) based on the specific latency requirements of different data unit parts. By dynamically adjusting parameters for the first part versus second parts, the system achieves better latency fulfillment while the parameter change mechanism remains structured and manageable.

Inventive Principle:

Principle #35Parameter changes

3Productivity

If uniform transmission parameters are used for all parts of application data unit, then the system maintains ease of operation, but the optimization for delay-sensitive applications deteriorates

Engineering Contradiction:

Improvedata transmission efficiencyVSAvoidtransmission scheme simplicity

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The patent segments the application data unit into multiple parts with different transmission parameter sets, enabling optimized data transmission efficiency for delay-sensitive applications. The segmentation allows critical parts to receive enhanced transmission treatment while non-critical parts use standard parameters, improving overall productivity without significantly complicating operation through a systematic division approach.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by using different transmission parameters for different parts of the application data unit based on their latency sensitivity. This localized optimization improves data transmission efficiency for time-critical parts while maintaining simpler uniform parameters for less sensitive parts, achieving productivity improvement with moderate operational complexity.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS20250330259A1Radio device and method in a wireless communications network

Publication Date: 2025.10.23 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

A method performed by a radio device for handling data transmissions in a wireless communications network. The radio device determines (202) one or more first transmission parameters for a first part of an application data unit to be transmitted. The first part of the application data unit is associated with a first latency requirement. The radio device determines one or more second transmission parameters for one or more second parts of the application data unit to be transmitted. The one or more second parts of the application data unit is associated with a second latency requirement. The second latency requirement is related to a shorter latency than the first latency requirement. The radio device transmits (203) the application data unit using the first transmission parameters for transmitting the first part of the application data unit and the second transmission parameters for transmitting the second parts of the application data unit.