The Research and Design of the Repeater Uplink System with Automatic Gain Control for WCDMA

Author

Zhang, Dan ; Jiang, Haiying ; Liu, Yuanan

Author_Institution

Beijing Xinyuanming Vogational Coll., Beijing, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

In order to communicate successfully for mobile stations in signal dead zone, this paper presents an uplink system with two-stage automatic gain control (AGC) circuit for WCDMA frequency selective repeater. Furthermore, the algorithm of AGC is analyzed. Agilent advanced design system (ADS) is used as a simulation tool to discuss the performance. The results show that the presented system is performed well, which has the characteristic of large pass band gain, high adjacent channel power ratio (ACPR) and steady controllable output. Therefore, this repeater system is suitable to solve the problem of the dead zone in WCDMA communication.

Keywords

automatic gain control; broadband networks; code division multiple access; mobile radio; radio links; radio repeaters; telecommunication control; wireless channels; ACPR; ADS; AGC circuit; WCDMA frequency selective repeater; adjacent channel power ratio; agilent advanced design system; mobile station; pass band gain; repeater uplink system design; signal dead zone; steady controllable output; two-stage automatic gain control; wideband code division multiple access; Automatic control; Circuit simulation; Communication system control; Control systems; Gain control; Multiaccess communication; RF signals; Radio frequency; Receivers; Repeaters;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5301189

Filename

5301189