Author :
Thomas, C. ; Prokop, T. ; Bickerstaff, M. ; Niemasz, J. ; Bernadac, P. ; Saintot, P. ; Laufer, R. ; Bescher, D. ; Michel, R. ; Walker, B. ; Derriennic, F. ; Burban, N. ; Pape, E. Le ; Moreau, J.P. ; Cha, I. ; Angioni, S. ; Mhirsi, K. ; Lee, J. ; Prat, P.
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 μm CMOS process at 61.44 MHz.
Keywords :
3G mobile communication; CMOS integrated circuits; SRAM chips; application specific integrated circuits; code division multiple access; decoding; encoding; integrated circuit design; integrated voice/data communication; 0.16 micron; 2.7 Mbit; 384 kbit/s; 3GPP base station applications; 61.44 MHz; ASIC; CMOS; DSP; RAKE-finger demodulation; SRAM; W-CDMA baseband channels; cellular base stations; channel coding/decoding; data services; maximum uplink data rate; multi-user UMTS channel unit processor; preamble detection; searching; voice services; 3G mobile communication; Application specific integrated circuits; Base stations; Baseband; Channel coding; Couplings; Decoding; Demodulation; Digital signal processing; Multiaccess communication;
