GTP Packet Multiplexing in UDP for Wireless Access Nodes

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Solution Overview

Problem

In wireless communication networks, managing packets between macro access nodes and relay nodes for multiple wireless devices becomes inefficient due to overhead from encapsulating data packets, particularly with headers that could allocate resources to other operations.

Innovation Solution

Generating GPRS Tunneling Protocol (GTP) packets and wrapping them in User Datagram Protocol (UDP) packets with metadata to multiplex and separate data packets efficiently between wireless access nodes and network gateways, reducing the need for extensive header parsing and resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If data packets are encapsulated for individual devices using GTP packets, then packet identification and routing for multiple wireless devices is achieved, but header overhead increases and valuable resources are consumed

Engineering Contradiction:

Improvepacket identification and routing capabilityVSAvoidheader overhead and resource consumption

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent combines multiple GTP packets into a single UDP packet by multiplexing them together. Instead of sending separate encapsulated packets for each wireless device, the system merges multiple device packets into one unified UDP packet with a shared header, thereby reducing redundant header overhead while maintaining the ability to identify and route packets to correct devices through the multiplexed structure.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The UDP packet serves multiple functions simultaneously: it acts as the transport protocol for IP communication, provides a container for multiple GTP packets from different wireless devices, and enables efficient resource sharing. This multi-functional approach eliminates the need for separate headers for each device packet, reducing overall resource consumption while maintaining routing capabilities.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If separate GTP packets are generated for each wireless device, then device-specific data routing is enabled, but processing complexity and resource allocation overhead increase

Engineering Contradiction:

Improvedevice-specific data routingVSAvoidprocessing complexity and resource allocation

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system merges multiple device-specific GTP packets into a single UDP packet structure. The multiplexed GTP packets maintain device identification information within the unified packet structure, enabling device-specific routing decisions at the destination without requiring separate packet processing for each device. This reduces processing complexity at intermediate nodes while preserving routing functionality.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent segments the UDP packet into multiple GTP packet sections, each identifiable through the multiplexed structure. This segmentation allows the system to maintain device-specific routing information while processing a single unified packet, thereby reducing the complexity of managing multiple separate packets and their associated headers.

Inventive Principle:

Principle #1Segmentation

3Measurement precision

If extensive packet headers are used for each wireless device, then packet identification accuracy is improved, but resource allocation efficiency decreases

Engineering Contradiction:

Improvepacket identification accuracyVSAvoidresource allocation efficiency

Core Design Contradiction:

Measurement precisionVSProductivity

Solution Approach 1:

The patent merges multiple packet identification requirements into a single UDP packet header structure. By multiplexing GTP packets, the system achieves packet identification accuracy through the shared header and multiplexed structure rather than through redundant individual headers, thereby improving resource allocation efficiency while maintaining identification capability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The UDP packet header serves multiple identification and routing functions simultaneously that previously required separate headers for each device. This universal header structure provides packet identification accuracy while eliminating redundant information, thereby improving resource allocation efficiency and overall productivity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10039146B2General packet radio service tunneling protocol multiplexing

Publication Date: 2018.07.31 T MOBILE INNOVATIONS LLC

AI summary

Systems, methods, and software described herein provide enhancements for data communications between a wireless access node and a wireless network gateway. In one implementation, a method of operating a wireless network includes, in the wireless access node, receiving data packets, via wireless signaling, from a plurality of wireless communication devices, generating GPRS Tunneling Protocol (GTP) packets for the data packets, and generating a wrapper for the GTP packets, wherein the wrapper is used to multiplex the GTP packets in a user datagram protocol (UDP) packet. The method further provides, in the wireless access node, transferring the UDP packet to a wireless network gateway, wherein the wireless network gateway separates the data packets from the UDP packet and GTP packets based on the wrapper, and forwards the data packets over a communication network.