Communication system, identifier assignment device, base station, identifier assignment method, and non-transitory computer-readable medium embodying instructions for controlling the device

Abstract

The communication system includes: a first base station forming a first cell, a second base station forming a second cell, and an identifier assigning device assigning an identifier for identifying the second cell, wherein the first base station transmits to the second base station a First neighbor cell information including identifier information of neighbor cells of a cell, and the second base station sends the first neighbor cell information received from the first base station to the identifier allocation device.

Description

technical field [0001] Example embodiments relate to methods of assigning identifiers to cells. Background technique [0002] Today, the speed and volume of communication between servers and backplanes continues to increase. Accordingly, there is a possibility that the radio environment changes after allocation of a PCI (Physical Cell Identifier), which is a type of cell identifier. Therefore, in PCI allocation, it is necessary to select a PCI capable of maintaining no conflict and no confusion even when the radio environment changes. [0003] However, measuring the actual radio environment requires a lot of work. Furthermore, detailed information units such as obstacles are required to estimate the radio environment, and it is difficult to manage such numerous pieces of information. Therefore, there is a need for a communication system in which PCIs can be assigned that are likely to remain conflict-free and confusion-free. [0004] Related to PCT allocation is describe...

AI Technical Summary

Problems solved by technology

This poses a problem that when assigning identifiers such as PCI, a SON function node can consider identifier information of neighboring cells of a cell formed by a base station connected to itself, but cannot take into account information related to those neighboring cells. Neighboring cell identifier information

As a result, there arises serious problems of maintaining collision-free and confusion-free in the changing radio environment

[0011] This problem is caused by the fact that a SON functional node cannot know the identifier information of the neighboring cells of a cell formed by a base station not connected to the SON functional node

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