Power control methods for dedicated control channels during discontinuous transmission in IS-2000 systems

Author

Wang, Yiping ; Paranchych, David W. ; Chheda, Ashvin H.

Author_Institution

Nortel Networks, Richardson, TX, USA

Volume

1

fYear

2000

fDate

2000

Firstpage

271

Abstract

We address the problem of power control for dedicated control channels (DCCHs) in IS-2000 CDMA networks during intervals of discontinuous transmission (DTX). A receiver must have the ability to distinguish between a bad traffic frame and a stoppage of transmission, if outer loop power control (OLPC) is to operate properly. We propose two new methods to facilitate the detection of a DTX interval. The first method uses measurements of the signal-to-noise ratios of the traffic channel and the power control sub-channel. The second uses explicit signaling between the transmitter and receiver. Simulations are used to assess the performance of the first method

Keywords

code division multiple access; land mobile radio; multiuser channels; power control; radio networks; signal detection; telecommunication control; telecommunication signalling; telecommunication standards; AWGN channel; IS-2000 CDMA networks; IS-2000 standard; IS-2000 systems; SNR measurement; bad traffic frame; dedicated control channels; discontinuous transmission; mobile radio; outer loop power control; performance; power control methods; power control sub-channel; receiver; signal-to-noise ratio; signaling; simulations; traffic channel; transmission interval detection; transmission stoppage; transmitter; Communication system traffic control; Control systems; Error correction; Intelligent networks; Multiaccess communication; Power control; Power measurement; Signal to noise ratio; Traffic control; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2000. PIMRC 2000. The 11th IEEE International Symposium on

Conference_Location

London

Print_ISBN

0-7803-6463-5

Type

conf

DOI

10.1109/PIMRC.2000.881432

Filename

881432