Relay Node Identification for Donor Base Station Configuration
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Solution Overview
Problem
Current LTE systems lack a mechanism to uniquely identify relay nodes to the donor base station, leading to suboptimal configuration and management of radio resources, as all relay nodes are typically treated with a default configuration.
Innovation Solution
A method is introduced to convey a unique relay node identification (RNID) during the relay node attach procedure, allowing the donor base station to retrieve specific configuration information and monitor the relay node's status, enabling tailored radio resource management and fault reporting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a unique relay node identification mechanism is implemented, then radio resource configuration and management can be optimized for different relay node hardware and software configurations, but the system complexity increases due to the need for identification conveyance and configuration retrieval mechanisms
Solution Approach 1:
The relay node identification (RNID) is conveyed to the donor base station during the attach procedure, which is a preliminary action performed before normal communication begins. This allows the donor base station to retrieve and store configuration information in advance, avoiding the need for complex real-time configuration negotiations during communication sessions.
Solution Approach 2:
The patent introduces an identification mechanism that acts as an intermediary between the relay node and the donor base station. The RNID serves as a key that enables the donor base station to retrieve pre-prepared configuration information from storage, simplifying the interaction by eliminating the need for complex direct configuration exchanges.
2Productivity
If relay nodes are identified uniquely, then specific configuration information can be retrieved and communication efficiency improved, but the attach procedure and signaling overhead increase
Solution Approach 1:
Configuration information is retrieved and stored in the donor base station during the attach procedure as a preliminary action. Although this adds some time to the attach process, it eliminates the need for repeated configuration exchanges during communication sessions, thereby improving overall communication efficiency.
Solution Approach 2:
The donor base station uses the RNID to autonomously retrieve configuration information from its own storage without requiring continuous interaction with the relay node or external configuration servers. This self-service mechanism reduces signaling overhead and improves communication efficiency after the initial attach.
Data Source
AI summary
A relay node identified by a unique relay node identifier relays communications between a donor base station and one or more user terminals. The donor base station acquires the relay node identifier during a relay node attach procedure from where the relay node or another node in the core network (e.g., mobile management entity). The donor base station may use the relay node identifier to retrieve configuration information for the relay node. The configuration information may be used to configure the relay node, to perform radio resource management functions, and/or to monitor the performance of the relay node.