Receiver architecture and performance of WLAN/cellular multi-mode and multi-standard mobile terminals

This paper proposes a new multi-mode and multi-standard receiver architecture for WLAN (OFDM, CCK, PBCC) and cellular systems (TD-SCDMA, cdma2000 1x-EV-DO, cdma2000 1x EV-DV, UMTS FDD HSDPA). The proposed architecture applies a FFT-based frequency-domain block linear equalization using an adapted overlap-add technique. The reuse of the 64/128-point FFT hardware engine required for WLAN OFDM reception enables a very cost efficient solution. It is demonstrated in terms of demodulation performance that the new architecture is superior or at least equivalent to state-of-the art receiver architectures for all transmission modes and standards under consideration.