The Beceem Communications MS120 chipset consists
of a high-performance baseband IC (MSB120)
and an integrated RFIC (MSR120) for implementing
a full-featured IEEE 802.16e/WiMAX/WiBRO
Wave 1 compliant mobile subscriber (MS).
The solution supports integration of dual
receive chains and a single transmit chain
operating in a tightly coupled manner to
deliver a cost-effective, low-power SIMO
(single input multiple output) and MRC (maximum
ratio combining) MS solution. The entire
PHY, MAC, and RF functionality of a Mobile
WiMAX terminal is implemented by this chipset.
The MSB120 baseband IC is a highly-integrated,
software programmable, multifunction digital-analog
mixed-signal IC that implements IEEE 802.16e
scalable OFDMA PHY and MAC functionality.
Both the PHY and MAC functionality are implemented
using a combination of hardware and software
to achieve an optimal balance between cost,
power consumption, performance and flexibility.
Further, the advanced features implemented
in this chip increase throughput and indoor
penetration performance for both mobile and
fixed applications.
The MSR120 radio IC is a transceiver designed
for 802.16e WiMAX applications. The IC includes
completely independent transmitters and receivers
that cover the Broadband Wireless Access
bands in 2.x GHz or 3.x GHz. The MSR120 RFIC
chip is optimized to operate with the MSB120
baseband IC.
Terminal implementations based on the MS120
chipset are planned to interoperate with
any WiMAX Certified™ SISO or MIMO capable
IEEE 802.16e/WiMAX Mobile BS (base stations).
Key Features
PHY
- TDD
- Modulations supported
- DL modulation: QPSK, 16QAM, 64QAM
- UL modulation: QPSK, 16QAM, 64QAM
- Convolutional Turbo Coding and Convolutional
Coding
- Support for one or two receive (MRC)
antenna(s) and a single transmit antenna
- Supports Mobile WiMAX wave 1 profile
requirements
MAC
- Supports various Quality of Service (QoS)
classes to handle, data, voice and video
traffic
- Support for flexible ARQ and Hybrid Automatic
Repeat Request (H-ARQ)
- Support for power saving idle and sleep
modes
- Support for AES encryption and EAP based
authentication schemes
- Support for IPv4, IPv6 and header compression
RFIC
- Support for 2 GHz or 3 GHz bands
- Closely coupled with Baseband IC (PHY
and MAC solution) for optimal performance
Interfaces
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