Relay Node Handover via Transport Network Layer Information Exchange
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Solution Overview
Problem
Current communication technologies face challenges in efficiently handover a relay node between multiple base stations when the relay node moves, disrupting the wireless connection and requiring reestablishment of communication channels.
Innovation Solution
A method involving the target base station receiving a handover request from the source base station, acquiring transport network layer information, and establishing a connection with the relay node using this information to ensure seamless handover and maintain network connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a relay node moves between base stations, then network coverage and mobility are improved, but connection stability and handover efficiency deteriorate
Solution Approach 1:
The source base station performs preliminary actions by determining TNL information about the relay node before handover occurs, and proactively sends this information to the target base station through the handover request message. This preliminary preparation ensures that the target base station already has the necessary connection information ready, enabling seamless handover without connection interruption when the relay node moves between base stations
2Productivity
If TNL information is transmitted from source to target base station, then handover efficiency is improved, but information transmission overhead increases
Solution Approach 1:
The handover request message serves multiple functions simultaneously: it requests handover authorization, transfers TNL information for connection establishment, and maintains backward compatibility with existing handover procedures. By making the handover request message multi-functional, the patent avoids creating separate dedicated message types, thus reducing overall signaling overhead while improving handover efficiency
Data Source
AI summary
The present invention relates to the field of communications technologies and provides a relay node handover method. The method includes: receiving, by a target base station, a handover request sent by a source base station serving a relay node; acquiring, by the target base station, first transport network layer TNL information from the source base station; and establishing, by the target base station, a connection with the relay node according to the first TNL information. The present invention further provides a base station and a communication system. The present invention may implement the handover of a relay node from a source base station to a target base station, thereby ensuring the establishment of a connection between the relay node and the target base station.