E2 Node RIC Query Messaging for Precise Subscription Tracking
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Solution Overview
Problem
The existing communication systems, particularly in the context of 6G networks, face challenges in efficiently managing and optimizing radio access network (RAN) functions due to the increasing complexity and diversity of connected devices and services, necessitating improved methods for RAN intelligent controller (RIC) query and subscription management.
Innovation Solution
The proposed solution involves an electronic device and method for RIC query, where an E2 node and a Near-real time (RT) RIC exchange messages containing RAN function identifiers and request IDs, with the response including subscription information, enabling efficient communication and management of RAN functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RIC query message includes both RAN function ID and RIC request ID, then the subscription information management becomes more precise and reliable, but the message complexity and processing overhead increase
Solution Approach 1:
The patent embeds the RIC request ID within the subscription information data structure, creating a nested identification system. The RAN function ID identifies the functional category while the RIC request ID provides specific request tracking, allowing precise subscription management without requiring separate message structures for each identification layer.
Solution Approach 2:
The patent pre-assigns unique RIC request IDs to subscription requests before they are processed by the E2 node. This preliminary identification allows the system to track and manage subscription information efficiently without requiring complex real-time generation or matching of request identifiers during message processing.
2Productivity
If the system exchanges detailed subscription information between E2 node and RIC, then the network optimization capability improves, but the signaling overhead and processing time increase
Solution Approach 1:
The patent extracts only the essential subscription information elements (RAN function ID, RIC request ID, and subscription status) from the complete subscription data set. By transmitting only these critical identification and status fields in the query response message, the system maintains network optimization capability while minimizing signaling overhead and processing time.
Solution Approach 2:
The patent implements a selective information exchange mechanism where only the necessary subscription identification and status information is transmitted between E2 node and RIC. This partial action approach provides sufficient information for network optimization decisions without the burden of exchanging complete subscription detail sets, thereby reducing processing time while maintaining optimization effectiveness.
Data Source
AI summary
The disclosure relates to a 5th generation (5G) or 6th generation (6G) communication system for supporting higher data transmission rates than a 4th generation (4G) communication system, such as long-term evolution (LTE). A method performed by an E2 node is provided. The method includes receiving, by the E2 node, a radio access network (RAN) intelligent controller (RIC) query request message from a near-real time (RT) RIC, and transmitting, by the E2 node, an RIC query response message to the near-RT RIC, wherein the RIC query request message includes an RAN function identifier (ID) and an RIC request ID, and wherein the RIC query response message includes subscription information corresponding to the RAN function ID and the RIC request ID.