DL - 4G Americas

Local IP Access provides access for IP capable UEs connected via HeNB (i.e. using HeNB radio access)
to other IP capable entities in the same residential/enterprise IP network, including multicast traffic (e.g.
discovery protocols) (Figure 7.9). Data traffic for Local IP Access is expected to not traverse the mobile
operator’s network except mobile operator network components in the residential/enterprise premises.
Signaling traffic will continue to traverse the mobile operator network. The residential/enterprise IP
network itself and the entities within that network are not within the scope of 3GPP standardization.
Figure 7.9. Diagrammatic Representation of the Residential IP Network Connected to a HeNB.
7.3.2.1 LIPA
The Local Internet Protocol Access (LIPA) breakout is performed in the same residential/enterprise IP
network. Figure 7.10 illustrates this breakout at a Local Gateway (L-GW) in the residential/enterprise IP
network.
www.4gamericas.org February 2011 Page 67