학술논문

An 8-user UMTS channel unit processor for 3GPP base station applications
Document Type
Conference
Source
Proceedings of the IEEE 2003 Custom Integrated Circuits Conference, 2003. Custom integrated circuits Custom Integrated Circuits Conference, 2003. Proceedings of the IEEE 2003. :275-278 2003
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
3G mobile communication
Base stations
Application specific integrated circuits
Multiaccess communication
Baseband
Demodulation
Channel coding
Decoding
Couplings
Digital signal processing
Language
Abstract
We present a multi-user W-CDMA baseband channel unit processor ASIC for cellular base station applications. The ASIC is compliant with the 3GPP/UMTS standard and exceeds 3GPP minimum requirements for high-speed data by 2.1 to 6.35 dB. It supports up to 8 users simultaneously, with a mix of voice and data services and a maximum uplink data rate of 384 kbps. The ASIC implements preamble detection, searching, RAKE-finger demodulation, channel coding/decoding for voice and data services, and transmission functions. It is coupled to a DSP to form a complete channel element for 8 users. The ASIC has 1.88 M gates plus 2.7 Mbits of SRAM in a 0.16 /spl mu/m CMOS process at 61.44 MHz.