MAC Layer Data Packet Transmission Cessation

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Solution Overview

Problem

Existing communication technologies face inefficiencies in managing data packet transmission, particularly in scenarios where data packets are already delivered to the MAC layer, leading to resource waste and reduced system capacity.

Innovation Solution

A method where a communication device receives a data packet at the MAC layer and drops its transmission when specific conditions are met, such as a predetermined time or receipt of indication information, allowing for timely cessation of HARQ transmissions and conservation of wireless resources.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If data packet transmission is continued after delivery to MAC layer, then transmission reliability is maintained, but wireless communication resources are wasted

Engineering Contradiction:

Improvewireless communication resourcesVSAvoidtransmission reliability

Core Design Contradiction:

Loss of energyVSReliability

Solution Approach 1:

The patent applies preliminary action by establishing discard timers and monitoring mechanisms before transmission resources are fully consumed. The RLC layer proactively checks whether data packets have been successfully delivered to the MAC layer and stops further transmission in advance, preventing resource waste while maintaining reliability through timely termination of redundant transmissions

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback mechanisms where the RLC layer receives acknowledgments from the MAC layer about successful data packet delivery. Based on this feedback, the RLC layer determines whether to continue or stop transmission, enabling dynamic resource allocation that balances reliability with resource efficiency

Inventive Principle:

Principle #23Feedback

2Loss of energy

If data packet transmission is stopped early at MAC layer, then resource waste is reduced, but system complexity increases

Engineering Contradiction:

Improvewireless communication resourcesVSAvoidsystem complexity

Core Design Contradiction:

Loss of energyVSDevice complexity

Solution Approach 1:

The patent segments the transmission control function across multiple layers (RLC layer for packet-level management, MAC layer for transmission-level management). Each layer handles specific aspects of transmission control independently, reducing the complexity burden on any single layer while achieving comprehensive resource optimization

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The RLC layer performs self-service by autonomously monitoring its own transmission status and making decisions about whether to continue or stop transmission based on internal timers and external acknowledgments. This self-service capability reduces the need for complex centralized control mechanisms

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250175285A1Method for communication, communication device, and network device

Publication Date: 2025.05.29 QUECTEL WIRELESS SOLUTIONS CO LTD

AI summary

A method for communication, a communication device, and a network device are provided. One example method includes: receiving, by a communication device, a first data packet at a media access control (MAC) layer; and dropping, by the communication device, transmission of the first data packet at the MAC layer when a first condition is met.