Wireless HARQ Process Selection for Configured Grant Collisions

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Solution Overview

Problem

Existing wireless communication technologies do not effectively handle collisions among HARQ processes during configured grant (CG) resource periods, leading to transmission failures and reduced efficiency.

Innovation Solution

A method and apparatus that consider a selection or usage rule for HARQ processes satisfying collision conditions to prevent transmission failures, optimizing the use of resources in CG and dynamic grant (DG) transmissions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If HARQ processes are used during configured grant resource periods without collision handling, then wireless transmission can proceed, but transmission failures occur due to HARQ process collisions

Engineering Contradiction:
Improvetransmission reliabilityVSAvoidtransmission efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by determining collision relationships between HARQ processes before transmission occurs. The method identifies which HARQ processes will collide in advance during the CG period, and establishes selection rules to prevent using colliding HARQ processes for MAC PDU transmission. This proactive collision detection and prevention mechanism ensures transmission reliability without sacrificing productivity.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If HARQ process collisions are not handled, then resource usage is simple, but transmission failures occur reducing overall efficiency

Engineering Contradiction:
Improvetransmission efficiencyVSAvoidprocessing complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements preliminary determination of HARQ process collision relationships at the beginning of the configured grant period. By pre-identifying which HARQ processes will collide and establishing selection rules in advance, the system avoids transmission failures without requiring complex real-time collision detection and handling mechanisms, thus maintaining processing simplicity while improving transmission efficiency.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If selection rules for HARQ processes are implemented, then transmission failures are prevented, but processing complexity increases

Engineering Contradiction:
Improvetransmission reliabilityVSAvoidprocessing complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent reduces processing complexity by determining HARQ process collision relationships and establishing selection rules in advance at the start of the CG period, rather than performing complex real-time analysis during transmission. This preliminary setup enables reliable transmission while keeping the actual transmission processing simple and efficient.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP4633261A1Method and apparatus for processing wireless transmission, device, storage medium, and product
Publication Date: 2025.10.15 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • EP4633261A1 patent drawingFigure 1~3
  • EP4633261A1 patent drawingFigure 4~6
  • EP4633261A1 patent drawing

AI summary

A method and apparatus for processing wireless transmission, a device, a storage medium, and a product, relating to the technical field of wireless communications. The method comprises: according to a selection or a use rule of a first hybrid automatic repeat request (HARQ) process, or according to a transmission or processing mode of a first resource, performing wireless transmission related processing (201), wherein the first HARQ process is an HARQ process meeting a conflict condition, and the first resource is a resource corresponding to the first HARQ process. The solution can improve the transmission efficiency.