Groupcast Connection Establishment for V2X Identity Collision Management
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Solution Overview
Problem
Current groupcast connection establishment and transmission procedures in V2X services face challenges in meeting the stringent Quality of Service (QoS) requirements for advanced V2X services, particularly in sidelink handling, due to issues like identity collisions and inefficient spectrum usage.
Innovation Solution
A method for groupcast connection establishment and transmission between V2X user equipment (UEs) that includes transmitting and receiving specific information for connection establishment, managing identity collisions, and configuring radio layer settings to ensure efficient groupcast transmission, leveraging AS layer mechanisms to meet advanced V2X service requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If groupcast connection establishment procedures are implemented in V2X services, then QoS requirements for advanced V2X services can be met, but identity collisions occur during connection establishment
Solution Approach 1:
The patent applies preliminary action by having the first UE transmit groupcast connection establishment information (including group identity, transmission pool configuration, and QoS parameters) before actual groupcast transmission begins. This allows second UEs to pre-configure their identities and connection parameters, reducing the likelihood of identity collisions during active transmission phases.
Solution Approach 2:
The patent implements feedback mechanisms where the first UE receives connection establishment responses from second UEs and can detect identity collisions. When collisions are detected, the system provides feedback to resolve the conflict by assigning alternative identities or reconfiguring connection parameters, thereby maintaining reliable groupcast service establishment.
2Reliability
If groupcast connection establishment procedures are implemented in V2X services, then QoS requirements for advanced V2X services can be met, but spectrum efficiency deteriorates
Solution Approach 1:
The patent merges multiple configuration elements into a single groupcast connection establishment information message transmitted by the first UE. This includes group identity, transmission pool configuration, frequency resources, bandwidth capability, and QoS parameters. By combining these elements, the system reduces the number of separate signaling messages required, thereby improving spectrum efficiency while establishing reliable groupcast connections.
Solution Approach 2:
The patent creates a universal groupcast connection establishment framework that can serve multiple V2X service types (platooning, extended sensors, advanced driving, remote driving) through a single standardized procedure. This multi-functional approach allows the same connection establishment mechanism to support diverse QoS requirements without requiring separate dedicated procedures for each service type, thus optimizing spectrum usage.
3Reliability
If identity information is exchanged during groupcast connection establishment, then connection reliability improves, but the complexity of connection establishment increases
Solution Approach 1:
The patent segments the groupcast connection establishment process into distinct phases: information transmission phase (first UE sends groupcast connection establishment information), identity exchange phase (second UEs respond with their identities), and confirmation phase (first UE determines successful establishment). This segmentation allows each phase to be optimized independently, managing complexity while ensuring reliable connection establishment through systematic identity verification.
Data Source
AI summary
The present disclosure relates to methods and apparatuses for groupcast connection establishment and transmission. According to an embodiment of the present disclosure, a method can include: transmitting, from a first user equipment, first information for a groupcast connection establishment; receiving, at the first user equipment, second information for the groupcast connection establishment from a second user equipment, wherein the second information comprises identity information of the second user equipment; and transmitting, from the first user equipment, third information for the groupcast connection establishment to the second user equipment, wherein the third information indicates whether the groupcast connection establishment is successful. Embodiments of the present disclosure propose a novel groupcast connection establishment procedure, which can meet the advanced V2X service requirements.