Design and ASIC performance analysis of a reconfigurable digital filter for a UMTS application

• Published in: International Symposium on Signal Processing and its Applications (ISSPA),Paris, France,2003-07-01 - 2003-07-04 Vol. 2; pp. 255 - 258 vol.2
• Main Authors: Veljanovski, R., Singh, J., Faulkner, M., Owall, V.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 2003
• Subjects: 3G mobile communication; Application specific integrated circuits; Band pass filters; Batteries; Digital filters; Electrical Engineering, Electronic Engineering, Information Engineering; Elektroteknik och elektronik; Engineering and Technology; Finite impulse response filter; Frequency response; Interference; Low pass filters; Performance analysis; radio receivers; radiofrequency interference; Teknik
• ISBN: 0780379462; 9780780379466
• DOI: 10.1109/ISSPA.2003.1224862

A reconfigurable digital root raised cosine (RRC) filter for a UMTS terrestrial radio access (UTRA) mobile terminal receiver is described and analysed. The filter monitors in-band and out-of-band received signal powers and calculates the appropriate filter length that meets the bit-energy to interference ratio (Eb/No). This design is advantageous, as only minimum battery power is used resulting in power consumption savings compared to fixed filter length digital filters. A 70% average power reduction is available for the UTRA - time division duplex (TDD) system.