PC5 Sidelink RSRP Reporting for Reliable V2X Communication
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Solution Overview
Problem
Existing wireless communication systems face challenges in seamlessly providing various services, particularly in the context of 5G communication systems applied to IoT networks, where efficient vehicle-to-everything (V2X) communication is needed for applications such as smart homes, smart cities, and connected cars.
Innovation Solution
The method and apparatus involve establishing a PC5-radio resource control (RRC) connection between terminals, receiving and transmitting configuration information for sidelink reference signal received power (SL-RSRP) measurement, and performing open loop power control to enhance V2X communication in next-generation mobile communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If wireless communication systems implement multiple services (V2X, IoT, 5G) simultaneously, then service coverage and functionality are improved, but system complexity and difficulty of seamless service provision increase
Solution Approach 1:
The patent segments the communication system into distinct functional modules: PC5-RRC connection management for direct device communication, Uu-RRC connection management for network-based communication, and separate configuration management for different service types (V2X, IoT, 5G). This modular segmentation allows each module to handle specific services independently, reducing overall system complexity while maintaining multi-service capability.
Solution Approach 2:
The patent introduces an intermediary configuration mechanism that mediates between different communication interfaces (PC5 and Uu) and service requirements. The base station acts as an intermediary that receives service requirements, determines appropriate communication types, and configures corresponding parameters, thereby simplifying the complexity of directly managing multiple services across different interfaces.
2Reliability
If V2X communication uses direct terminal-to-terminal connection (PC5 interface), then communication efficiency and reliability are improved, but configuration management complexity increases
Solution Approach 1:
The patent uses the base station as an intermediary that receives configuration requirements from the network side and translates them into appropriate PC5-RRC configurations for direct terminal communication. This intermediary mechanism maintains communication reliability through direct PC5 connections while reducing configuration management complexity by centralizing configuration decisions at the base station.
Solution Approach 2:
The patent enables terminals to autonomously establish PC5-RRC connections and perform self-configuration based on pre-defined protocols and parameters provided by the base station. This self-service capability reduces the need for complex manual configuration management while maintaining reliable direct communication between terminals.
Data Source
AI summary
Provided are a method and apparatus for performing vehicle-to-everything (V2X) communication in a wireless communication system, and an operation method of a first terminal in a wireless communication system includes: receiving, from a second terminal, a PC5 radio resource control (RRC) reconfiguration message including configuration information for measurement of sidelink reference signal received power (SL-RSRP); measuring the SL-RSRP, based on the configuration information for measuring the SL-RSRP; and when a reporting type regarding the measurement of the SL-RSRP is periodic reporting and a measurement value of a Layer 3 filtered SL-RSRP is present, transmitting the measurement value of the Layer 3 filtered SL-RSRP to the second terminal.