L.2 Definitions
23.2283GPPIP Multimedia Subsystem (IMS)Release 18Stage 2TS
L.2.1 HSS
For 3GPP2 systems, the term "HSS" is used to represent the Home AAA entity plus the Databases to which it interfaces. The HSS in 3GPP2 systems does not include the HLR functionality. Figure x shows the HSS in 3GPP2 systems.
Figure L.1: HSS in 3GPP2