User's Manual
Mobile WiMAX RAS SPI-2L10 System Description
© SAMSUNG Electronics Co., Ltd.
2-1
CHAPTER 2. System Overview
2.1 Introduction to System
The SPI-2L10, RAS of Mobile WiMAX, is controlled by ACR and connects Mobile
WiMAX calls to MS.
The SPI-2L10 interfaces with MS via a wireless channel observing the Mobile WiMAX
standard (IEEE 802.16) and provides high-speed data service and multimedia service in
wireless broadband.
To this end, the SPI-2L10 provides the following functions: modulation/demodulation of
packet traffic signal, scheduling and radio bandwidth allocation to manage air resources
efficiently and ensure Quality of Service (QoS), Automatic Repeat request (ARQ)
processing, ranging function, connection control function to transmit the information on the
SPI-2L10 and set/hold/disconnect the packet call connection, handover control and ACR
interface function and system operation management function.
The SPI-2L10 interfaces with the ACR using the Fast Ethernet method, enabling various
control signals and traffic signals to be transmitted stably and quickly.
The SPI-2L10 can be installed in an outdoor environment and supports MIMO and a
capacity of 2Carrier/Omni per unit.
The SPI-2331 supports 10 MHz bandwidth per carrier and has a large packet service in
high speed. Other features are as follows.
Compact System
The SPI-2L10 is a single unit system that has a small system size and is lightweight.
Supporting Outdoor Environment
The SPI-2L10 is a system that can be operated in an outdoor environment. To operate
normally in an outdoor environment, it detects and controls the inside temperature of the
system and collects and reports the temperature-related alarms.
Because the SPI-2L10 uses a natural convection mechanism where no fan is used, it
tolerates an outdoor environment and has low power consumption.