29.1613GPPInterworking between the Public Land Mobile Network (PLMN) supporting packet based services with Wireless Local Area Network (WLAN) access and Packet data Networks (PDN)TS
4.1 Key characteristics of PLMN
The PLMN is fully defined in the 3GPP technical specifications. The key characteristics of 3GPP – WLAN Interworking are found in 3GPP TS 23.234 .
4.2 Key characteristics of IP Networks
Refer to 3GPP TS 29.061 .