Dynamic Protocol Allocation in Vehicular Wireless Communications

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Solution Overview

Problem

Existing wireless vehicular communication systems face challenges in efficiently managing different communication protocols, particularly in dynamic environments where vehicles and devices using legacy and newer standards interact, leading to inefficiencies in channel allocation and communication reliability.

Innovation Solution

The implementation of a method and apparatus that dynamically discern the current communication environment by collecting and analyzing information from both legacy and newer communication protocols, allowing for dynamic allocation of channel usage based on the relationship between the two protocols, ensuring seamless communication across different standards and improving system-level performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If different communication protocols are used in wireless vehicular communications, then communication standards can evolve and adapt to different environments, but it becomes challenging to implement communications involving different protocols efficiently

Engineering Contradiction:
Improveprotocol adaptabilityVSAvoidimplementation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The communication system segments the protocol handling into separate functional modules: a protocol detection module that identifies legacy and new protocol transmissions, a relationship determination module that analyzes their dynamic relationship, and a resource allocation module that manages channel access. This segmentation allows each module to handle specific protocol-related tasks independently, reducing overall implementation complexity while maintaining multi-protocol support

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism that mediates between legacy protocol transmissions and new protocol transmissions. This intermediary determines the dynamic relationship between the two protocols and coordinates their channel access, allowing different protocols to coexist without direct conflict. The intermediary acts as a translator and coordinator, simplifying the integration of multiple protocols into the existing communication framework

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If channel allocation is static in wireless vehicular communications, then implementation is simpler, but efficiency deteriorates when different numbers of transmitters using different protocols are present

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidchannel allocation complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The channel allocation mechanism transitions from static to dynamic by continuously monitoring the communication environment and adjusting resource distribution in real-time. The system determines the dynamic relationship between legacy and new protocol transmissions and allocates channel resources accordingly, allowing the number of allowable transmissions to adapt as vehicles enter or leave the environment. This dynamic approach optimizes communication efficiency while maintaining manageable complexity through structured adaptation rules

Inventive Principle:
Principle #15Dynamics

3Reliability

If the number of transmissions is limited to ensure reliable decoding, then communication reliability is maintained, but channel utilization efficiency decreases when protocol distribution is uneven

Engineering Contradiction:
Improvedecoding reliabilityVSAvoidchannel utilization
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system dynamically changes the transmission parameter (number of allowable transmissions) based on the detected protocol distribution and their dynamic relationship. When legacy and new protocol transmissions are balanced, the system allows higher transmission counts to maximize channel utilization. When one protocol dominates, the system adjusts the transmission limit to ensure reliable decoding for the minority protocol while still maintaining overall channel efficiency. This parameter adaptation resolves the contradiction between reliability and productivity

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP3654605B1Wireless vehicular communications with dynamic protocol-based relationships
Publication Date: 2024.02.21 NXP BV
  • EP3654605B1 patent drawingFigure 1
  • EP3654605B1 patent drawingFigure 2
  • EP3654605B1 patent drawingFigure 3

AI summary

Aspects of the disclosure are directed to methods and apparatuses for wireless vehicular communications involving the transmission of messages using two or more protocols. As may be implemented in accordance with one or more embodiments characterized herein, wireless station-to-station communications are carried out in which a plurality of stations (210, 212, 214) share a wireless communications channel. Information is wirelessly collected (213) respectively from transmissions associated with a legacy communication protocol and another type of communication protocol. A current communication environment of the station is dynamically discerned (211) and characterizes a dynamic relationship of the collected information using the legacy communication protocol relative to the collected information using the other communication protocol. Communications are wirelessly transmitted (216, 218, 219, 220) over the wireless communications channel using the legacy and other communication protocol, by allocating usage of the channel through transmissions of data, via the legacy communication protocol and via the other communication protocol, based on the dynamic relationship.