description: Identifier of access point, (reference ETSI TS 129 171). Where the E-CGI is made up of the PLMN and Cell Identity (28 bit string). Then the PLMN is made up of the 3 digit MCC & 2 or 3 digit MNC. The Cell Portion is an optional element type: string example: "001010000000000000000000000000001"