Dynamic CV2X Application Processor Resource Allocation

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Solution Overview

Problem

Current wireless communication systems, particularly in cellular vehicle to everything (CV2X) communication systems, face challenges in managing application processor resources effectively, leading to increased processing latency and jitter, which can impact safety due to resource sharing conflicts between CV2X and non-CV2X applications.

Innovation Solution

The method involves determining the current status of CV2X traffic and allocating application processor resources accordingly, reserving resources for CV2X calls when traffic is active and releasing them when inactive, ensuring optimal resource utilization and minimizing latency and jitter.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If application processor resources are shared between CV2X and non-CV2X applications, then resource utilization efficiency is improved, but processing latency and jitter increase

Engineering Contradiction:

Improveresource utilization efficiencyVSAvoidprocessing latency and jitter

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent implements dynamic resource allocation where the application processor switches between shared resource mode and dedicated resource mode based on CV2X traffic conditions. When CV2X traffic is detected, the system transitions to dedicating specific processor resources exclusively to CV2X, eliminating resource contention and reducing latency/jitter. When no CV2X traffic is present, resources are shared to maximize utilization efficiency.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system performs preliminary detection of CV2X traffic conditions and proactively allocates dedicated resources before processing delays occur. By monitoring for CV2X traffic patterns and pre-emptively dedicating resources, the system prevents latency and jitter issues rather than reacting to them after they occur.

Inventive Principle:

Principle #10Preliminary action

2Loss of time

If dedicated application processor resources are reserved for CV2X applications, then processing latency and jitter are reduced, but resource utilization efficiency decreases

Engineering Contradiction:

Improveprocessing latency and jitterVSAvoidresource utilization efficiency

Core Design Contradiction:

Loss of timeVSProductivity

Solution Approach 1:

The system dynamically adjusts resource allocation based on real-time CV2X traffic conditions. During periods of active CV2X communication, dedicated resources are allocated to ensure low latency and jitter. During periods of inactivity, these same resources are released or shared with other applications, preventing resource wastage and maintaining high utilization efficiency.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent implements a resource recovery mechanism where dedicated CV2X resources are released back to the general pool when CV2X traffic ceases. This allows the system to discard dedicated allocations during non-critical periods and recover them for future use, optimizing the balance between performance guarantees and resource efficiency.

Inventive Principle:

Principle #34Discarding and recovering

3Adaptability or versatility

If application processor resources are shared between multiple applications, then resource availability for other applications is improved, but CV2X processing reliability deteriorates

Engineering Contradiction:

Improveresource availability for other applicationsVSAvoidCV2X processing reliability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where the system continuously monitors CV2X traffic conditions and resource performance metrics. Based on this feedback, the resource allocation manager adjusts allocation decisions in real-time, ensuring that CV2X reliability requirements are met while maximizing resource availability for other applications when appropriate.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11974253B2Smart resource management for low latency use case

Publication Date: 2024.04.30 QUALCOMM INC

AI summary

Certain aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for determining a current status of cellular vehicle to everything (CV2X) traffic and then allocating application processor resources for a CV2X call based on the current status of the CV2X traffic. The allocating may include reserving the application processor resources for the CV2X call when the CV2X traffic is active and releasing the reserved application processor resources when there is no CV2X traffic.