Direct Connection QoS Negotiation for 5G V2X Reliability
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Solution Overview
Problem
Current Quality of Service (QoS) implementation methods, as defined by 3GPP Rel-14, fail to meet the transmission requirements for enhanced Vehicle to X (V2X) services in 5G NR systems, particularly in terms of transmission delay and reliability.
Innovation Solution
A direct connection communication method is introduced, where terminals negotiate and establish connections only when they can meet the required QoS parameters, involving the exchange of QoS request and response messages between terminals and network entities like AMF and access network functions to ensure compliance with V2X service needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the current QoS implementation method (3GPP Rel-14) is used, then the system maintains compatibility with existing standards, but it cannot meet the transmission delay and reliability requirements of enhanced V2X services
Solution Approach 1:
The patent introduces dynamic QoS parameter negotiation between terminals, allowing the QoS parameters to be adjusted and adapted based on actual service requirements rather than being fixed by pre-defined standard values. This dynamic adaptation enables the system to meet varying V2X service requirements while maintaining standard compatibility.
Solution Approach 2:
The patent enables terminals to negotiate and determine QoS parameters through interaction, allowing the parameters to be changed and optimized according to actual service needs. This parameter flexibility resolves the contradiction between maintaining standard compliance and achieving enhanced service performance.
2Reliability
If direct connection communication is established without QoS negotiation, then the connection establishment process is simplified and faster, but the QoS requirements of V2X services cannot be guaranteed
Solution Approach 1:
The patent enables terminals to autonomously negotiate QoS parameters with each other without requiring complex network-side intervention for each connection establishment. The terminals self-determine the QoS parameters based on their service requirements and capabilities, simplifying the overall process while ensuring QoS satisfaction.
Solution Approach 2:
The patent implements a feedback mechanism where terminals exchange QoS capability information and negotiate parameters through request-response messages. This feedback loop ensures that both terminals agree on QoS parameters that meet service requirements, achieving reliable connections with controlled complexity.
3Productivity
If QoS parameters are pre-configured according to 3GPP Rel-14 standards, then the system maintains standard compliance, but it cannot satisfy the specific transmission delay and reliability requirements of enhanced V2X services
Solution Approach 1:
The patent transforms static, pre-configured QoS parameters into dynamic, negotiable parameters that can adapt to different V2X service requirements. Terminals exchange capability information and determine appropriate QoS parameters based on actual service needs, enabling both high efficiency and flexibility.
Solution Approach 2:
The patent performs QoS parameter negotiation as a preliminary action before establishing direct connection communication. By determining appropriate QoS parameters in advance through terminal interaction, the system ensures that service transmission can proceed efficiently with parameters optimized for the specific service requirements.
Data Source
AI summary
Disclosed by the present application is a direct connection communication method, an AMF, an access network functional entity and a terminal. The direct connection communication method comprises: a first terminal sending a direct connection communication request message to a second terminal, the request message carrying a direct connection communication quality of service (QoS) parameter; the first terminal receiving a direct connection communication response message which is from the second terminal and which is determined by according to the direct connection communication QoS parameter, the direct connection communication response message being used to indicate that the second terminal accepts or rejects a request of the first terminal; and if the direct connection communication response message indicates that the second terminal accepts the request of the first terminal, the first terminal establishes a direct connection communication connection to the second terminal according to the direct connection communication response message.