Relay Node Control Node Information Acquisition
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Solution Overview
Problem
In LTE-A networks with relay nodes, relay nodes lack information about the control nodes (MME) connected to user equipment, which is necessary for handover decisions and addressing, leading to inefficiencies in mobility management and network operations.
Innovation Solution
A method and system where the base station sends messages carrying control node information to relay nodes, enabling them to acquire and utilize this information for user terminal access, thereby informing relay nodes about the connected MMEs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If relay nodes are introduced to extend base station coverage and reduce cost, then coverage area is improved and cost is reduced, but relay nodes lack control node information necessary for handover decisions and mobility management
Solution Approach 1:
The base station acts as an intermediary to transfer control node information to the relay node. The base station receives control node information from the network and forwards it to the relay node through message transmission, enabling the relay node to acquire necessary information without directly connecting to control nodes.
Solution Approach 2:
The base station performs preliminary action by acquiring control node information in advance and storing it before the relay node needs it. This preliminary acquisition and storage of information enables the relay node to make proper handover decisions when needed.
2Device complexity
If relay nodes operate without control node information, then device complexity is reduced, but handover decisions and mobility management become inefficient
Solution Approach 1:
The base station serves as an intermediary that provides control node information to the relay node, enabling efficient mobility management without requiring the relay node to directly manage complex control node connections. This maintains relative simplicity while improving productivity.
3Measurement precision
If relay nodes acquire control node information through direct connection, then information accuracy is improved, but network architecture complexity increases
Solution Approach 1:
The base station acts as an intermediary that accurately obtains control node information from the network and forwards it to the relay node. This indirect approach maintains information accuracy while avoiding the need for direct complex connections between relay nodes and control nodes.
Data Source
AI summary
Disclosed are a method, a device, and a system for the acquisition of control node information. In embodiments of the present invention, on the basis of information transmitted by a base station, a relay node acquires control node information on user terminal access attached in the information acquired, thereby allowing a relay node in a system placed after the introducing relay node to be informed of the control node information on user terminal access.