Title :
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
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;
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
DOI :
10.1109/PIMRC.2000.881432
