V2X UE Communications Manager RAT Format Selection

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Solution Overview

Problem

Heterogeneous wireless communication systems, particularly in vehicle-to-everything (V2X) networks, face challenges in seamlessly migrating and interworking between different radio access technologies (RATs) such as LTE and NR, leading to compatibility issues with safety messages and resource allocation across devices with varying configurations.

Innovation Solution

The implementation of a UE communications manager that selects the appropriate service identifier and RAT parameters based on supported formats and neighboring UE capabilities, enabling the generation and transmission of messages in compatible formats and protocols, such as r14, r15, and r16, to ensure safety message compatibility and efficient resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If heterogeneous wireless communication systems support multiple RAT formats (LTE, NR, r14, r15, r16), then adaptability and versatility are improved, but device complexity increases

Engineering Contradiction:
ImproveRAT format compatibilityVSAvoidmulti-RAT support complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system dynamically selects RAT formats and service identifiers based on real-time conditions. The UE communications manager determines which RAT format (r14, r15, or r16) to use by evaluating neighboring UE capabilities and current communication requirements, allowing the system to adapt its complexity level rather than maintaining all capabilities simultaneously.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of service identifier selection based on RAT format requirements. By selecting appropriate service identifiers that correspond to specific RAT formats, the system enables compatibility across different standards while managing device complexity through parameter-based control rather than structural complexity.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the system dynamically selects service identifiers and RAT parameters based on neighboring UE capabilities, then interoperability is improved, but measurement and detection difficulty increases

Engineering Contradiction:
Improvesafety message compatibilityVSAvoidneighboring UE capability detection
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The system performs preliminary detection of neighboring UE capabilities before establishing communication. The UE communications manager proactively queries and determines the RAT formats supported by neighboring UEs, allowing the system to pre-select appropriate service identifiers and avoid compatibility issues during actual safety message transmission.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system uses feedback from neighboring UEs regarding their supported RAT formats to adjust service identifier selection. By monitoring capability information from neighboring devices and feeding this back into the selection process, the system ensures reliable interoperability while systematically managing the detection complexity.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3643122B1Enhanced vehicle-to-everything radio access technology migration
Publication Date: 2024.12.25 QUALCOMM INC
  • EP3643122B1 patent drawingFigure 1
  • EP3643122B1 patent drawingFigure 2
  • EP3643122B1 patent drawingFigure 3

AI summary

Methods, systems, and devices for wireless communication are described. A user equipment (205) that is configured to transmit a message to a neighboring UE via multiple formats, identify (220) a service parameter indicative of a format to be used for the message. The UE may convey (225) information indicating the service parameter from a first layer (210) of the UE to a second layer (215) of the UE, wherein the first layer is an upper layer with respect to the second layer. The UE may generate (230), by the second layer and based at least in part on the information, the message in the format for communicating with the neighboring UE. Other aspects, embodiments, and features are claimed and described.