Access Node ECGI Configuration via X2AP for Relay Nodes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current relay enhanced mobile telecommunication networks face challenges in providing unique identity information to relay nodes without disrupting existing interfaces and protocols, particularly in configuring ECGIs for RN cells without impacting S1 and RRC signaling.
Innovation Solution
The method utilizes the X2 Application Protocol (X2AP) to transfer ECGI information using existing messages, specifically through the Served Cells list or Neighbour Information list, allowing the access node to generate and communicate ECGIs to relay nodes, avoiding the need for new messages and minimizing protocol changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If new messages or protocols are introduced to transfer ECGI information to relay nodes, then the ECGI configuration capability is improved, but the device complexity and protocol compatibility deteriorate
Solution Approach 1:
The patent applies universality by making existing X2AP messages (Served Cells list and Neighbour Information list) serve multiple functions. These messages originally designed for other purposes are repurposed to also carry ECGI information for relay nodes, eliminating the need for new dedicated message types while maintaining protocol compatibility
Solution Approach 2:
The access node autonomously generates ECGI information and embeds it within existing X2AP message structures without requiring external protocol definitions or new message types. The system serves itself by utilizing already-established messaging infrastructure for the new configuration need
2Device complexity
If existing X2AP messages are used to transfer ECGI information, then the device complexity is reduced, but the measurement precision of ECGI assignment may worsen
Solution Approach 1:
The patent implements feedback mechanisms where the access node monitors and manages ECGI assignment to relay nodes, ensuring that generated ECGIs are unique and properly configured. The existing X2AP message exchange provides a feedback loop for verifying successful ECGI configuration and maintaining assignment precision
Solution Approach 2:
The X2AP message structures act as intermediaries that safely encapsulate and transmit ECGI information between the access node and relay nodes. These existing standardized messages provide a reliable mediation layer that ensures accurate information transfer without requiring new protocol definitions
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to an access node (100) in a communications network (1000) that is adapted for providing an identifier for a relay node (20) comprising receiver means (110) arranged to receive a message from the relay node (20), the message requesting an establishment of an interface over a communication link (6), checking means (130) arranged to check data fields comprised in the message received, generating means (140) arranged to generate the identifier, and transmitting means (120) arranged to transmit the generated identifier to the relay node (20) over the interface connection of communication link (6).