Multipath channel estimation for WCDMA uplink

Author

Huang, Aiping ; Hall, Michael ; Hartimo, Iiro

Author_Institution

Dept. of Inf. Sci., Zhejiang Univ., China

Volume

1

fYear

1999

fDate

1999

Firstpage

141

Abstract

A novel multipath channel estimation method is proposed to solve a special problem that occurs in channel estimation for ETSI´s WCDMA uplink communications, where scrambling is introduced in the dedicated physical channels. The delays and complex amplitudes of the multipath components are estimated. A matched filter is employed for each user to carry out the despreading and unscrambling simultaneously. The filter coefficients are a combination of the OVSF code and the preliminary scrambling code for the user. An averaging operation reduces the noise and interference, and thus improves the estimates

Keywords

amplitude estimation; broadband networks; channel coding; code division multiple access; decoding; delay estimation; filtering theory; interference suppression; land mobile radio; matched filters; multipath channels; multiuser channels; parameter estimation; radio links; radiofrequency interference; ETSI; OVSF code; WCDMA uplink; amplitude estimation; delay estimation; despreading; filter coefficients; interference reduction; matched filter; mobile communication systems; multipath channel estimation; multipath components; noise reduction; scrambling; scrambling code; unscrambling; Amplitude estimation; Channel estimation; Delay estimation; Interference; Matched filters; Mobile communication; Multiaccess communication; Multipath channels; Telecommunication standards; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1999. VTC 1999 - Fall. IEEE VTS 50th

Conference_Location

Amsterdam

ISSN

1090-3038

Print_ISBN

0-7803-5435-4

Type

conf

DOI

10.1109/VETECF.1999.797073

Filename

797073