Bell Labs Develops 24 Mbps Turbo Decoder Chip for 3G

Researchers at Bell Labs have developed a "turbo decoder chip" for 3G data terminals that supports the evolving High Speed Downlink Packet Access (HSDPA) standard. The chip, which will be licensed to manufacturers of wireless data terminals, handles data rates up to 24 Mbps. HSDPA is an evolutionary enhancement to Universal Mobile Telecommunications System (UMTS) spread-spectrum technology, also known as wideband code division multiple access (W-CDMA). The chip uses a highly parallel architecture and a new compression technique that enables it to operate at a low clock frequency and yet still achieve high data rates. Lucent said the new chip is fast enough not only to support first-generation HSDPA systems, which will offer transmission speeds between 5 and 10 Mbps, but also future Multiple-Input/Multiple-Output (MIMO) HSDPA systems, which are expected to achieve peak data rates up to 20 Mbps. Design work for the device was done by a Bell Labs research team in Sydney, Australia.
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