System Description

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Chapter 2 SOL230 Overview

SOL230 System Description v1.0 9

Key Features

The key functions of the SOL230 are as follows:

 Physical Layer Processing

 Call Processing Function

 IP Processing

 SON Function

 Easy Operation and Maintenance

For availability and provision schedule of the features and functions described in

this manual, please refer to separate documentations.

Physical Layer Processing

The SmallCell transmits/receives data through the wireless channel between the

EPC and the UE. To do so, the SmallCell provides the following functions:

 OFDMA/SC-FDMA Scheme

 Downlink Reference Signal Creation and Transmission

 Downlink Synchronization Signal Creation and Transmission

 Channel Encoding/Decoding

 Modulation/Demodulation

 Resource Allocation and Scheduling

 Link Adaptation

 HARQ

 Power Control

 MIMO

OFDMA/SC-FDMA Scheme

The SmallCell performs the downlink OFDMA/uplink SC-FDMA channel

processing that supports the LTE standard physical layer. The downlink OFDMA

scheme allows the system to transmit data to multiple users simultaneously using

the subcarrier allocated to each user. Depending on the channel status and the

transmission rate requested by the user, the downlink OFDM can allocate one or

more subcarriers to a specific subscriber to transmit data.

In addition, when all sub-carriers are divided for multiple users, the SmallCell can

select and assign to each subscriber a sub-carrier with the most appropriate

features using the OFDMA scheme, thus to distribute resources efficiently and

increase data throughput.

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