System Description

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Chapter 1 Samsung LTE System Overview
SOL230 System Description v1.0 4
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Samsung SmallCell Network Configuration
A network with the LTE SmallCell is consists of the SmallCell, Small Cell EMS,
Small Cell Gateway, Small Cell GW EMS, Evolved Packet Core (EPC), and so on.
A Subnet of the Packet Data Network (PDN), which allows the User Equipment
(UE) to access external networks, comprises multiple SmallCells and Small Cell
Gateway/EPC (MME and S-GW/P-GW).
Figure below depicts the network configuration of the SmallCell.
Figure 2. SmallCell Network Architecture
Packet DataIP N/W
Smallcell EMS
HSS
SmallCell
LTE Netbook
Dongle
LTE Smart Phone
SeGW
P-GW
MME
S-GW
SmallCell
The SmallCell is located between the UE and the EPC. It processes packet calls by
connecting to the UE wirelessly according to the LTE air standard.
The SmallCell is responsible for transmission and reception of wireless signals,
modulation and demodulation of packet traffic signals, packet scheduling for
efficient utilization of wireless resources, Hybrid Automatic Repeat request
(HARQ)/ARQ processing, Packet Data Convergence Protocol (PDCP) for packet
header compression, and wireless resources control.
In addition, the SmallCell performs handover by interworking with EPC.
EPC
The EPC is a system, which is located between the SmallCell and the PDN. The
subcomponents of the EPC are the MME, S-GW and P-GW.
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