SQN2010

SQN2010

SQN2010 Reference Design

SQN2010: Powerful Base Station Solution

FIXED WIMAX BASE STATION SOC
The SQN2010 System-on-Chip (SoC) provides system manufacturers a comprehensive and innovative IEEE 802.16-2004 compliant baseband solution to develop cost-effective WiMAX base stations. Implementing in a single chip all MAC and PHY features required for WiMAX Forum Certified™ base stations, it offers optional IEEE 802.16 features for increased performance. Included with the SQN2010 is a complete software package running on the embedded dual processor platform enabling easy integration into customer designs and reducing time-to-market.

Highlights

  • IEEE 802.16d-2004 WiMAX Forum Certified™
  • MAC & PHY
  • TDD and FDD (half duplex and full duplex)
  • Key optional WiMAX features
  • Advanced quality-of-service
  • Low cost & Low power
  • Suitable for pico and macro base stations
  • Up to 28 MHz channel sizes

Benefits of the SQN2010 SoC

Advanced PHY layer
The SQN2010 delivers unique RF capabilities through a fully digital front end, integrating A/D and D/A converters, operating with any channel width from 1.25 to 28 MHz. It enables superior RF performance through advanced Digital Signal Processing techniques:

  • Very low implementation margin
  • Full uplink subchannelization with up to 16 concurrent bursts
  • Built-in support for smart antennas:
    Transmit diversity with space time coding (STC)
    Receive diversity with maximum ratio combining (MRC)

Powerful MAC Layer with Advanced QoS
The SQN2010 includes a powerful MAC layer optimally partitioned between hardware and software. The
software runs on two embedded processors providing fl exibility, while the MAC hardware acceleration enhances
system performance and throughput.
The MAC supports many options that increase system capacity and services capabilities, such as Payload
Header Suppression (PHS), Automatic Repeat Request (ARQ), multicast polling and advanced packet
classifi cation. Its QoS features guarantee system performance for real-time and non-real-time applications.

Full Software Package
Sequans delivers a full software package, comprised of hardware drivers, as well as MAC and scheduling
functions. The software is modular allowing system vendors to reuse their existing software modules and
expertise to differentiate their product offering, while still leveraging the performance and time to market
advantages offered by the Sequans’ modules. The software can be easily integrated with high-level software
applications using well defi ned API.

Low Cost and Low Power
The SQN2010’s density and built-in dynamic power optimization techniques enable low-cost and low-power
baseband solutions. Sequans designed its technology for high-end Base Stations targeting high capacity,
scalable and feature-rich systems, as well as micro Base Stations with strong constraints on cost and power
consumption.

Base Station Reference Design
For customers wishing to evaluate Sequans’ technology as well as to initiate their own system development the
SQN2010-RD is a complete reference design based on the SQN2010 SoC. It includes drivers, MAC software
modules and hardware material: PCB with RF functions, SoC, memory, power supply, Ethernet and PCI ports.

SQN2010 SoC features

PHY

  • OFDM PHY with 256-point FFT supporting TDD, FDD and H-FDD
  • Adaptive 64QAM, 16QAM, QPSK, BPSKmodulation, based on detailed RF statistics
  • Concatenated Reed-Solomon-convolutional code
  • Baseband and IF interfaces with integrated A/D and D/A converters
  • Uplink subchannelization with up to 16 concurrent bursts
  • Receive antenna diversity with Maximum Ratio Combining
  • Transmit antenna diversity with Space Time Coding
  • Adaptive Antennas Support for up to 4 antennas
  • Dynamic Frequency Selection

MAC

  • Two Embedded ARM 9 processors
  • Embedded 10/100 Base-T Ethernet MAC
  • PCI bus controller
  • Packet Convergence Sublayer with classification and filtering: IPv4, IPv6,802.3 Ethernet, 802.1Q VLAN, raw 802.16 interface
  • Layer-2 packet forwarding
  • Privacy sub-layer with DES and AES encryption
  • Call Admission Control
  • Real-time Services
  • Automatic Repeat Request (ARQ)
  • Concatenation, Fragmentation, Packing
  • Payload Header Suppression (PHS)
  • Advanced QoS features: weighted fair queuing, packet & BWR shaping, congestion management with QoS-aware Random Early Detection and Tail Drop, hierarchical QoS

Main Interfaces

  • RMII packet interface
  • PCI interface
  • Two serial RS232 interface with UART
  • Configurable RF data interface: analog or digital interface with IF or baseband I/Q signals
  • Dedicated interface for transmit and receive antenna diversity (cascading 2 SQN2010 SoCs)
  • Dedicated interface to Adaptive Antenna Systems
  • 1PPS input for frame synchronization between Base Stations

Physical Characteristics

  • 31mm x 31 mm, 604-pin PBGA package
  • -40°C to +85°C operating conditions
  • 1.5W to 2.5W maximum power consumption based on configuration