Base Station X2 Connection via SON Receiver
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Solution Overview
Problem
In LTE networks, establishing an X2 connection between base stations is challenging when there are no UEs or insufficient UEs, leading to difficulties in network optimization due to reliance on UE reporting for automatic connection establishment.
Innovation Solution
A method using a self-organized network (SON) receiver to obtain a neighboring base station's cell identifier and address information, enabling the base station to establish an X2 connection independently of UE access, thereby facilitating fast network optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If automatic X2 connection establishment relies on UE reporting, then operation and maintenance workload is reduced, but X2 connection cannot be established when there are no UEs or insufficient UEs in the cell
Solution Approach 1:
The patent introduces a network management system as an intermediary to facilitate X2 connection establishment. The network management system obtains cell identifiers of neighboring base stations and provides this information to the base station, enabling automatic X2 connection setup without relying on UE reporting. This mediator resolves the contradiction by providing a reliable information source that works independently of UE presence while maintaining automation benefits.
Solution Approach 2:
The patent implements preliminary action by having the network management system pre-obtain and store cell identifier information of neighboring base stations before actual X2 connection establishment is needed. This advance preparation ensures that when a base station needs to establish an X2 connection, the necessary neighbor cell information is already available, eliminating the dependency on UE reporting and ensuring reliable connection setup regardless of UE presence.
2Reliability
If manual configuration mode is used for X2 connection, then connection establishment is reliable, but operation and maintenance workload increases significantly
Solution Approach 1:
The patent implements self-service by enabling base stations to automatically obtain neighbor cell information from the network management system and autonomously complete X2 connection establishment without manual configuration. The base station receives cell identifier information from the network management system, uses this information to identify neighboring base stations, and automatically initiates connection setup, thereby eliminating manual configuration workload while maintaining reliable connection establishment.
Solution Approach 2:
The network management system performs preliminary action by pre-collecting and storing cell identifier information of all base stations in the network. This advance preparation creates a ready-to-use database that base stations can query automatically, eliminating the need for manual neighbor relationship configuration while ensuring accurate and reliable X2 connection establishment.
3Extent of automation
If UE reporting is required for X2 connection establishment, then connection setup is automated, but network optimization speed decreases when UEs are absent or insufficient
Solution Approach 1:
The network management system serves as an intermediary that provides cell identifier information directly to base stations, enabling automated X2 connection establishment independent of UE presence. This mediator ensures that automation continues to function at full speed even when no UEs are available to report neighbor cell information, thereby resolving the contradiction between automation extent and optimization speed.
Solution Approach 2:
The network management system performs preliminary action by pre-obtaining and maintaining an up-to-date database of base station cell identifiers. This advance preparation ensures that when a base station needs to establish an X2 connection, the information is immediately available, enabling fast automated connection setup without waiting for UE reports, thus maintaining high network optimization speed regardless of UE presence.
Data Source
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AI summary
An embodiment of the present invention provides a method for establishing an X2 connection between base stations, including: obtaining, by a base station, a cell identifier of a neighboring base station through a self-organized network SON receiver; obtaining, by the base station, according to the cell identifier, address information of the neighboring base station; and establishing, by the base station, an X2 connection with the neighboring base station according to the address information of the neighboring base station. In addition, an embodiment of the present invention further provides a base station and a communication system. The present invention is used to overcome defects of establishing an X2 connection between base stations based on report of a UE such as slow speed and slow network optimization, so that an X2 connection between a base station and a neighboring base station does not rely on access of the UE and an X2 connection can be quickly established between the base station and the neighboring base station, thereby implementing fast optimization of a network.