User's Manual

Ver.
CHAPTER 2. System Overview
2600-00FKQFGA2
1.0
2.2.3 IP Processing
IP QoS
The eNB can provide the backhaul QoS when communicating with the EPC by supporting
the Differentiated Services (DiffServ).
The eNB supports 8 class DiffServ and mapping between the services classes of the user
traffic received from the MS and DiffServ classes. In addition, the eNB supports mapping
between the Differentiated Services Code Points (DSCP) and the 802.3 Ethernet MAC
service classes.
IP Routing
Since the eNB provides multiple Ethernet interfaces, it stores in the routing table the
information on which Ethernet interface the IP packets will be routed to. The routing table
of the eNB is configured by the operator. The method for configuring the routing table is
similar to the standard router configuration method.
The eNB supports static routing settings, but does not support dynamic routing protocols
such as Open Shortest Path First (OSPF) or Border Gateway Protocol (BGP).
Ethernet/VLAN Interface
The eNB provides Ethernet interfaces and supports the static link grouping, Virtual Local
Area Network (VLAN), and Ethernet CoS functions that comply with IEEE 802.3ad for
Ethernet interfaces. The MAC bridge function defined in IEEE 802.1D is not supported.
The eNB allows multiple VLAN IDs to be set for an Ethernet interface. To support
Ethernet CoS, it maps the DSCP value of the IP header to the CoS value of the Ethernet
header for Tx packets.
2.2.4 SON Function
The SON function supports the self-configuration, self-establishment and self-optimization
function.
Self-Configuration and Self-Establishment
Self-configuration and self-establishment enable automatic setup of radio parameters and
automatic configuration from system ‘power-on’ to ‘in-service’, which minimizes the effort
in installing the system. The detailed functions are as follows.
 Self-Configuration
− Self-configuration of Initial Physical Cell Identity (PCI)
− Self-configuration of initial neighbor information
− Self-configuration of initial Physical Random Access Channel (PRACH)
information
 Self-Establishment
− Automatic IP address acquisition
− Auto OAM connectivity
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