The present document studies enhancements required for the support of VoIMS via Trusted and Untrusted WLAN access related with QoS differentiation for better user experience.
potential user plane impacts for the support of QoS differentiation;
potential UE-TWAN and UE-ePDG signalling enhancements for the support of QoS differentiation.
The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
: "Vocabulary for 3GPP Specifications".
: "Architecture enhancements for non-3GPP accesses".
IEEE Std 802.11-2012: "IEEE Standard for Information technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications".
"Security Architecture for the Internet Protocol".
"Internet Key Exchange Protocol Version 2 (IKEv2)".
: "3GPP system - fixed broadband access network interworking".
: "Access to the 3GPP Evolved Packet Core (EPC) via non-3GPP access networks; Stage 3".
: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".
GSMA IR.34: "Guidelines for IPX Provider networks".