User's Manual

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CHAPTER 1. Samsung LTE System Overview
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CHAPTER 1. Samsung LTE System
Overview
1.1 Introduction to Samsung LTE System
The Samsung LTE system supports 3GPP LTE (hereinafter, LTE) based services.
LTE is a next generation wireless network system which solves the disadvantages of
existing 3GPP mobile systems allows high-speed data service at low cost regardless of time
and place.
The Samsung LTE system supports downlink Orthogonal Frequency Division Multiple Access
(OFDMA), the uplink Single Carrier (SC) Frequency Division Multiple Access (FDMA), and
scalable bandwidths for various spectrum allocation and provides high-speed data service. It also
provides high-performance hardware for improved system performance and capacity and
supports various functions and services.
Compliance Standards
The Samsung LTE system is based on the Rel-8 and Rel-9 standards of the LTE
3rd Generation Partnership Project (3GPP).
The Samsung LTE system consists of the evolved UTRAN Node B (eNB), Evolved Packet
Core (EPC) and LTE System Manager (LSM).
The eNB exists between the EPC and the User Equipment (UE). It establishes wireless
connections with the UE and processes packet calls according to the LTE air interface
standard. The eNB manages the UE in connected mode at the Access Stratum (AS) level.
The EPC is the system located between the eNB and Packet Data Network to perform
various control functions. The EPC consists of the Mobility Management Entity (MME),
Serving Gateway (S-GW) and PDN Gateway (P-GW). The MME manages the UE in idle
mode at the Non-Access Stratum (NAS) level; and the S-GW and the P-GW manage user
data at the NAS level and interworks with other networks.
The LSM provides the man-machine interface; manages the software, configuration,
performance and failures; and acts as a Self Organizing Network (SON) server.
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