Implementation of the Automatic Neighbour Relation (ANR) function for RAN sharing networks

摘要

A method for acquiring a cell identifier by a source cell in a radio communication system is provided. The method includes receiving information (i.e. a physicall cell identifier, PCI) about a new cell from a User Equipment (UE) in the source cell, acquiring an Evolved Universal Terrestrial Radio Access (EUTRA) Cell Global Identifier (ECGI) of the new cell from the UE by instructing the UE to read the system information of the new cell, if it is determined based on the information about the new cell that there is no neighbor relationship with the new cell, determining whether a Public Land Mobile Network (PLMN) Identifier (ID) (PLMN ID) in the ECGI is included in a mapping table between a primary PLMN ID and a PLMN ID for shared cells in the eNB, and acquiring an X2 Internet Protocol (IP) address of the new cell from an Evolved Packet Core (EPC) according to the determination results.