User's Manual

Mobile WiMAX Indoor RAS SPI-2210 System Description/Ed.07
© SAMSUNG Electronics Co., Ltd. 2-2
Support of Broadband Channel Bandwidth
The indoor SPI-2210 supports wide bandwidth of 5/10 MHz per carrier and high-speed and
high capacity packet service.
Support of 3Carrier/3Sector
The indoor SPI-2210 can support 3Carrier/3Sector by the basic rack.
Support of MIMO
The indoor SPI-2210 basically supports MIMO of 2Tx/2Rx RF path. There are two
methods of MIMO as follows;
 Downlink
Space Time Coding (STC): method for raising reliability of link
Spatial Multiplexing (SM): method for raising data transmission rate
 Uplink
Collaborative SM (CSM): Doubled frequency efficiency
Support of Frequency Reuse Pattern (FRP)
The indoor SPI-2210 supports FRP N=1 that provides the service to 3-sector by using a
carrier and FRP N=3 that provides the service to 3-sector by using different carriers.
A service provider can efficiently operate its own frequency resources by using the FRP
function.
Support of 4-Branch Rx Diversity (Optional)
The indoor SPI-2210 supports 4-branch Rx diversity providing four Rx paths to each sector
to raise the Rx performance. In the indoor SPI-2210, Mobile WiMAX base station RF
Receiver (MRR), an Rx module, should be additionally mounted to support 4-branch Rx
diversity.
Support of Various Frequency Allocation
The indoor SPI-2210 supports various frequency allocation methods such as contiguous
carrier, noncontiguous carrier, FRP N=1 or FRP N=3. The indoor SPI-2210 can apply RF
combiner optionally to such frequency allocation methods.
Support of Beamforming (Optional)
The indoor SPI-2210 is designed as the structure to support beamforming later. The indoor
SPI-2210 mitigates the interference efficiently by uplink and downlink beamforming to
raises the average capacity and expand the data coverage. Also the indoor SPI-2210 needs
the process to calibrate the reciprocity between uplink channel and downlink channel.
Schedule to Provide the System Feature
For the schedule to provide the features described in this system description, see
separate document.