User's Manual
Mobile WiMAX Indoor RAS SPI-2210 System Description/Ed.07
© SAMSUNG Electronics Co., Ltd. 3-4
Board
Name
Quantity
(Sheet)
Function
MBB-P 1 Mobile WiMAX base station Backplane Board-Premium
- DMB backboard
- Signal routing function for traffic, control signal, clock, power, etc.
MRA-S Max. 10 Mobile WiMAX base station RAS board Assembly-Standard
- Subscriber data traffic processing
- OFDMA Processing
- 1Carrier/1Sector MIMO
- ‘Samsung Digital I/Q and OAM’ data formatting
- N:1 redundancy support only for 1
st
carrier
MMA-S Max. 2 Mobile WiMAX base station Main control board Assembly-Standard
- Main system processor
- Call processing, resource allocation and OAM
- Reception of the GPS signal and creation and supply of the clock
- Alarm collection and report to the upper
- FE/GE interface support with ACR
- Redundancy support
MEI 1 Mobile WiMAX base station External Interface board assembly
- User Defined Alarm (UDA) provided
- User Defined Ethernet (UDE) provided
- Alarm interface (RS-485) for rectifier provided
- TDD signal support for auxiliary devices
- FE/GE interface support with ACR
Mobile WiMAX base station RAS board Assembly-Standard (MRA-S)
The MRA-S is equipped with the modem supporting IEEE 802.16 Mobile WiMAX
standard physical layer (PHY) and the modem performs the OFDMA signal processing
function by the control of the MMA-S.
The MRA-S modulates the packet data received through the MMA-S, converts the
modulated signal into the ‘Samsung Digital I/Q and OAM’ format and transmits to the MRU-2.
In the contrary, the MRA-S demodulated the data received from the MRU-2 after performing the
AGC function, converts the data into the format defined in the IEEE 802.16 Mobile WiMAX
physical layer standard and then transmits the converted data to the MMA-S via Ethernet.
The MRA-S supports 1carrier/1sector 2Tx/2Rx MIMO in default and can support 4-branch
Rx diversity.
The MRA-S can support N:1 Redundancy only for 1st carrier to continuously support
service to the corresponding sector if a fault occurs in a certain sector when the indoor SPI-
2210 serves the service by using a carrier initially.