DCI Format Validation Using HARQ and RV Field Checks

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing semi-persistent scheduling and configured grants, particularly in environments with varying device capabilities and network architectures, leading to suboptimal resource allocation and communication efficiency.

Innovation Solution

Implementing semi-persistent scheduling and configured grants operations in wireless devices and base stations, utilizing technologies such as LTE and 5G NR, to optimize resource allocation and enhance communication efficiency by adapting to different device capabilities and network configurations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If semi-persistent scheduling and configured grants are implemented to optimize resource allocation, then communication efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidscheduling management complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the scheduling management into distinct components: semi-persistent scheduling for periodic traffic patterns and configured grants for specific grant types. This segmentation allows the system to handle different traffic requirements independently, improving overall communication efficiency while managing complexity through modular organization of scheduling functions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic adaptation mechanisms that allow the scheduling system to adjust its behavior based on device capabilities and network conditions. The system can dynamically switch between different scheduling modes and configurations, optimizing resource allocation for varying traffic patterns while maintaining manageable complexity through adaptive control.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If scheduling operations are adapted to different device capabilities and network configurations, then versatility is improved, but system complexity increases

Engineering Contradiction:
Improvedevice capability adaptationVSAvoidconfiguration management complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent utilizes parameter changes to adapt scheduling operations to different device capabilities and network configurations. By modifying scheduling parameters such as periodicity, resource allocation, and grant configurations based on detected device characteristics, the system achieves high versatility without requiring fundamentally different scheduling mechanisms for each device type.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements a universal scheduling framework that can handle multiple device types and network configurations through a single unified system. The configured grants mechanism serves multiple functions including initial access, data transmission, and resource reservation, reducing the need for separate specialized mechanisms and thereby managing complexity while maintaining versatility.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250286691A1Validation of a DCI Format
Publication Date: 2025.09.11 APEX BEAM TECHNOLOGIES LLC
  • US20250286691A1 patent drawing
  • US20250286691A1 patent drawing
  • US20250286691A1 patent drawing

AI summary

A wireless device validates a DCI. The validating may be based on second bit(s) in an RV field of the DCI. The validating may be based on comparing first bit(s) in a HARQ process number field of the DCI with a first sequence of bit(s) in response to the first bit(s) not indicating a configuration index and the DCI having a first format. The first sequence may be determined using a first configuration parameter. The validating may not be based on comparing the first bit(s) with the first sequence in response to the DCI having a second format. The wireless device may transmit a confirmation in response to the validation.