A wide-band direct conversion receiver for WCDMA applications

Author

Parssinen, Aarno ; Jussila, Jari ; Ryynanen, Jussi ; Sumanen, L. ; Halonen, Kari

Author_Institution

Helsinki Univ. of Technol., Espoo, Finland

fYear

1999

fDate

17-17 Feb. 1999

Firstpage

220

Lastpage

221

Abstract

Current digital mobile communications systems, such as GSM, are specified for voice-band applications. The channel bandwidths up to some hundreds of kHz limit data transfer to low bit rates, in applications such as electronic mail. The 3rd-generation global mobile system is in development under the International Telecommunications Union (ITU). It will be capable of transmitting various services from voice to multimedia with different quality requirements for single or multiple users in the same frequency band. Data rates from 8 to 384 kb/s in wide-area applications, and even 2 Mb/s indoors, will be possible. The flexibility comes from use of the wideband code division multiple access (WCDMA) scheme in the radio interface.

Keywords

cellular radio; code division multiple access; digital radio; radio receivers; 2 Mbit/s; 8 to 384 kbit/s; GSM; International Telecommunications Union; WCDMA applications; bit rates; channel bandwidths; data transfer; digital mobile communications systems; electronic mail; third-generation global mobile system; voice-band applications; wide-area applications; wide-band direct conversion receiver; wideband code division multiple access; CMOS technology; Filters; Mobile handsets; Multiaccess communication; Radiofrequency amplifiers; Solid state circuits; Spread spectrum communication; Testing; Transceivers; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 1999. Digest of Technical Papers. ISSCC. 1999 IEEE International

Conference_Location

San Francisco, CA

ISSN

0193-6530

Print_ISBN

0-7803-5126-6

Type

conf

DOI

10.1109/ISSCC.1999.759201

Filename

759201