NR V2X Sidelink Service Reporting for Unicast and Multicast
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Solution Overview
Problem
The existing service reporting process in NR V2X lacks a clear solution for sidelink reporting, which is more complex than in LTE, particularly for unicast services, due to the involvement of multiple message types and varying QoS requirements.
Innovation Solution
A wireless communication method that enables terminal devices to send reporting information to network devices based on the information type for establishing sidelink services, including unicast and multicast scenarios, allowing for appropriate access layer configuration and sidelink grant information to be provided, thereby simplifying the reporting process and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the existing LTE service reporting process is applied to NR V2X, then the reporting process remains simple, but it cannot handle the complex unicast and multicast scenarios with multiple message types and varying QoS requirements
Solution Approach 1:
The patent segments the service reporting process into distinct types (unicast service reporting and multicast service reporting) with specific message structures for each. Unicast reporting includes target address and QoS attribute information, while multicast reporting includes group identifier and QoS attribute information. This segmentation allows the system to handle different service scenarios with appropriate complexity levels.
Solution Approach 2:
The patent introduces dynamic reporting mechanisms where the terminal device determines the reporting type based on the service type (unicast or multicast). The reporting process adapts dynamically to the specific scenario requirements, enabling flexibility in handling different message types and QoS requirements without a fixed complex structure.
2Measurement precision
If detailed reporting information is sent for each message type, then the service reporting accuracy improves, but the signaling overhead increases
Solution Approach 1:
The patent applies local quality by including only the specific information elements required for each reporting type. Unicast reporting includes target address and QoS attribute information, while multicast reporting includes group identifier and QoS attribute information. This approach ensures reporting accuracy by including necessary details while avoiding unnecessary signaling overhead by excluding irrelevant information.
3Loss of information
If the reporting process is simplified, then the signaling overhead is reduced, but it cannot accommodate multiple message types with different QoS requirements
Solution Approach 1:
The patent creates a universal service reporting framework that handles both unicast and multicast scenarios through a common reporting structure. The framework uses a service type indicator to route to appropriate processing logic, enabling a single reporting mechanism to serve multiple functions and message types without requiring separate complex procedures for each scenario.
Data Source
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AI summary
Provided are a wireless communication method, a terminal device, and a network device. The method comprises: sending reporting information to the network device on the basis of an information type of information to be transmitted for establishing a unicast service sidelink. According to the technical solution, the terminal device can send the reporting information to the network device on the basis of the information type of the information to be transmitted for establishing the unicast service sidelink; the technical solution is applicable to a unicast service in an NR V2X system, and solves the problem of how to report information for different PC5-S/-RRC messages during service reporting.