Baseband Solution
The main challenge with baseband design comes from the noise and interference piled up from transmitter to receiver. These noise and interference may come from non-linear RF/analogue circuits, multipath fading channel and other systems. A baseband design requires recovering the original 1-0 signals from a distorted input signal.
Wipro Techno Centre believes a good architecture and algorithm design is the key to ensure high baseband quality. And as to the hardware design, we put steady efforts to reduce the size of hardware, and to reduce the power consumption.
The baseband design flow in Wipro Techno Centre is as following:
- Architecture and algorithm design
- C/C++ or Matlab simulations to verify the architecture and algorithm
- RTL Verilog design
- FPGA evaluation
- Chip implementation
Wipro Techno Centre can provide customers with a design following the whole design flow, or alternatively, we can provide services of the selected steps.
Technology wise, Wipro Techno Centre accumulates rich experience in various technical areas such as short range wireless communication systems (Bluetooth, WLAN, UWB and DSRC) and cellular systems (APHS and WCDMA). Recently, Wipro Techno Centre started baseband design for MIMO-OFDM, which is the core technology for future high throughput wireless systems such as next generation WLAN (802.11n) and WiMAX (802.16-2004 and 802.16e). In addition, Wipro Techno Centre starts the development of DTV MODEM, an indispensable component of the upcoming high definition TV evolution process.
A brief history of baseband design in Wipro Techno Centre is as following:
| Period | Design Achievements |
|---|---|
| 2004 - Present | DTV MODEM Chip MIMO-OFDM Baseband Technology UWB (MB-OFDM) Baseband Chip Advanced PHS Digital IF MODEM Dedicated Short Range Communication (DSRC) digital IF MODEM |
| 2003 - 2004 | Software Defined Radio (SDR) Platform WLAN 802.11g Technology Bluetooth EDR MODEM Bluetooth V1.2 Baseband |
| 2001 - 2003 | Bluetooth V1.1 Digital-IF MODEM (A pioneer project to use Digital IF Technology in Bluetooth RF chip design) Firmware for 3G WCDMA MODEM with Phone Call Demonstration HSDPA Architecture for High Speed Application of WCDMA TD-SCDMA Technology Research for Chinese 3G Specification |
| 1999 - 2001 | MODEM Chip Design for 3G WCDMA Mobile Terminal Application with FPGA Prototype Turbo CODEC for CDMA 2000 Mobile Terminal Application |
| 1997 - 1999 | 3G Mobile Terminal MODEM Based on the First 3G Specification from ARIB of Japan Turbo CODEC for Digital Service of INTERSAT Application Multi-User Interference Cancellation in Wireless Communications |