AMR Call Quality Measurement Based on ITU-T P.862.1 PESQ-LQO

Author

Ho, Ming-Ju ; Mostafa, Ayman

Author_Institution

Cingular Wireless, Atlanta, GA

fYear

2006

Firstpage

1

Lastpage

5

Abstract

Adaptive multi-rate (AMR) codecs are used popularly in most GSM and W-CDMA networks. This document describes the AMR call quality measurement results of PESQ-LQO (ITU-T P.862-1) based mean opinion score (MOS) vs. several key RF parameters under a controlled lab test environment. Frequency hopping and Rayleigh fading were included. The codecs that were evaluated include full rate 12.2, 7.4, 5.9, 4.75 and half rate 7.4, 5.9, 4.75. The RF parameters studied here were C/I, RXQUAL and FER MOS scores were collected via the tool based on the ITU P.862.1 PESQ-LQO algorithm. The radio link timer (RLT) was set 64 and the transmit power control (TPC) and discontinuous transmission (DTX) mechanisms were turned off for all fixed codec cases.

Keywords

Rayleigh channels; adaptive codes; cellular radio; code division multiple access; AMR call quality measurement; FER MOS; GSM; ITU-T P.862.1 PESQ-LQO; RXQUAL; Rayleigh fading; W-CDMA; adaptive multi-rate codecs; discontinuous transmission; frequency hopping; mean opinion score; radio link timer; transmit power control; Base stations; Circuits; Connectors; Delay effects; GSM; Power control; Radio frequency; Speech codecs; Speech enhancement; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th

Conference_Location

Montreal, Que.

Print_ISBN

1-4244-0062-7

Electronic_ISBN

1-4244-0063-5

Type

conf

DOI

10.1109/VTCF.2006.430

Filename

4109695