Network Processing Device Cache Line Management for RAN Latency

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Solution Overview

Problem

Traditional connection management techniques in wireless communication systems are inefficient and UE-centric, leading to coverage holes, call drops, high latency, and video buffering delays, especially in emerging applications like IIoT and XR, due to their reliance on sub-optimal mechanisms and large communication latency to cloud services.

Innovation Solution

Implementing machine learning and AI-based algorithms, such as graph neural networks, for load-aware connection management and handover optimization within a context-aware, network-level approach, utilizing edge computing frameworks like O-RAN and MEC to enhance radio access networks with low latency and high throughput.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional UE-centric connection management techniques are used, then implementation simplicity is maintained, but network reliability deteriorates due to coverage holes and call drops

Engineering Contradiction:
Improvenetwork reliabilityVSAvoidconnection management complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a network-level connection management entity that acts as an intermediary between user equipment and base stations. This intermediary collects contextual information from multiple sources, processes it using machine learning algorithms, and makes centralized connection management decisions, thereby improving reliability without requiring complex logic at the UE level.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically changes connection management parameters based on contextual information such as user mobility patterns, network load, and environmental factors. Machine learning models continuously adjust these parameters to optimize connection stability and reduce call drops, transforming static traditional approaches into adaptive dynamic management.

Inventive Principle:
Principle #35Parameter changes

2Loss of time

If traditional handover mechanisms are used, then system simplicity is maintained, but latency increases leading to video buffering delays

Engineering Contradiction:
Improvehandover latencyVSAvoidhandover management complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by pre-evaluating potential handover targets and preparing connection parameters before actual handover is needed. The machine learning model predicts future connection quality based on current trends, enabling proactive handover decisions that reduce latency and prevent video buffering delays.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where the system continuously monitors handover performance and uses this information to refine machine learning models. This closed-loop approach learns from past handover outcomes, optimizing future decisions to minimize latency while adapting to changing network conditions.

Inventive Principle:
Principle #23Feedback

3Loss of time

If cloud-based connection management is used, then centralized control is achieved, but communication latency increases for real-time applications

Engineering Contradiction:
Improvecommunication latencyVSAvoidconnection management efficiency
Core Design Contradiction:
Loss of timeVSProductivity

Solution Approach 1:

The patent segments connection management functions into two parts: real-time decision-making is performed at the network edge using distributed machine learning models, while long-term policy optimization and model training occur in the cloud. This segmentation enables low-latency responses for real-time applications while maintaining centralized intelligence for overall system optimization.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20230379682A1Data handling for a radio access network controller
Publication Date: 2023.11.23 INTEL CORP
  • US20230379682A1 patent drawing
  • US20230379682A1 patent drawing
  • US20230379682A1 patent drawing

AI summary

A network processing device is connected to a host processor device and receives radio access network data on a network describing attributes of the radio access network (RAN). The network processing device further includes a classification engine to determine a priority level for the RAN data and identify a block of memory of the host processor device for the RAN data associated with the priority level. The classification engine generates a cache line in cache of the network processing device to store the RAN data, where the cache line is associated with the block of memory. The network processing device causes the cache line to be flushed to the block of memory with the RAN data based on the priority level.