of ANQP information elements (Table 10.1). The WFA (Wi-Fi Alliance) organization has completed this list as part of Passpoint certification based on Hotspot 2.0 features (Table 10.1). Wi-Fi Integration to the 4G Mobile Network Specification Function information elements 3GPP Cellular Network Identification and authentication methods NAI Realm from the service provider Roaming Consortium Domain Name Venue Name Identification of the Wi-Fi access network Operator's Friendly Name IP Address Type Availability WAN Metrics Connection Capability Characteristics of the Wi-Fi access Operating Class Indication network Network Authentication Type OSU Providers List Online registration Icon Request & Response HS Query List HS Capability List Capacity request NAI Home Realm Query Table 10.1. ANQP information elements 10.2.1. Information elements provided by the beacon 10.2.1.1. HESSID element If two access points have different SSIDs, then they are considered as different Wi-Fi networks. If two access points have the same SSID, then they are considered as part of the same wireless network. However, SSIDs are not globally administered, and it is possible that two access points with the same SSID are actually different Wi-Fi networks. The homogeneous extended service set identifier (HESSID) allows mobiles to detect this condition. When two access points of two different Wi-Fi networks have the same SSID, the two networks are differentiated by two different HESSIDs. Network Discovery and Selection The HESSID is included in the Interworking element in Beacon or Probe Response frames. The HESSID is a MAC (Medium Access Control) address. The HESSID value has the same value as the basic service set identifier (BSSID) of one of the access points. 10.2.1.2. Access Network Type field The Access Network Type field is included in the Interworking element. Mobiles can use this information when selecting an access point. The Access Network Type field indicates the type of network to which the access point is connected: pay public network, f