IP Data Packet QoS Mapping to Air Interface Bearer

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Solution Overview

Problem

Existing technologies lack a direct mapping solution for Quality of Service (QoS) required for IP data packets to an air interface bearer, failing to ensure effective transmission.

Innovation Solution

A method and device that map QoS directly to a Data Radio Bearer (DRB) by determining the corresponding DRB based on type information from the IP data packet, ensuring guaranteed QoS during transmission between an Access Point (AP) and User Equipment (UE) via an air interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional EPS bearer mapping mechanism is used, then QoS control is performed at network level, but direct mapping from IP data packet type information to air interface bearer is absent

Engineering Contradiction:

Improvedirect mapping capabilityVSAvoidmapping mechanism complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent segments the QoS mapping process into distinct stages: IP data packet reception, type information extraction, DRB identification, and targeted transmission. This segmentation enables direct mapping from IP packet characteristics to air interface bearers while maintaining manageable system complexity through modular processing steps.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces type information from IP data packets as an intermediary element that bridges the gap between network-level QoS requirements and air interface bearer selection. This intermediary enables direct mapping without requiring complex end-to-end bearer management across multiple network elements.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If complex EPS bearer mapping through multiple network elements is used, then QoS is controlled at network level, but transmission efficiency over air interface is reduced

Engineering Contradiction:

Improvetransmission efficiencyVSAvoidmapping processing time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent performs preliminary identification of the appropriate Data Radio Bearer (DRB) based on IP data packet type information before transmission occurs. This preliminary action enables direct routing of packets to the correct air interface bearer, eliminating time-consuming intermediate mapping steps and improving transmission efficiency.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent extracts only the necessary type information from IP data packets to determine the appropriate DRB, rather than processing complete packet contents or maintaining complex bearer state information. This extraction approach reduces processing time while maintaining accurate bearer mapping.

Inventive Principle:

Principle #2Taking out (Extraction)

Data Source

PatentUS10271238B2Method and device for transmitting IP data packet

Publication Date: 2019.04.23 DATANG MOBILE COMM EQUIP CO LTD

AI summary

A method and device for transmitting Internet Protocol (IP) data packet are disclosed by the present invention, the method comprising: an Access Point (AP) device obtains an IP data packet needing to be sent to an User Equipment (UE); said AP device use the type information of said IP data packet to determine the corresponding Data Radio Bearer (DBR) of said IP data packet; Said AP device sends said IP data packet to said UE through said DBR; in the embodiments of the present invention, when the AP device accesses the IP network locally or directly through the IP network, the Quality of Service (QoS) insurance of IP data packet in the air interface transmission is implemented, on the basis of the direct mapping between the type information and the data radio bearer.