Browse Prior Art Database

PREDICTIVE JITA

IP.com Disclosure Number: IPCOM000008184D
Original Publication Date: 1997-Jun-01
Included in the Prior Art Database: 2002-May-24
Document File: 3 page(s) / 117K

Publishing Venue

Motorola

Related People

Authors:
Michael Bychowsky Michael Kloos Yakov Simkin

Abstract

JITA (Just In Time Audio) is a process within the iDEN system that allows synchronization of voice packet transmissions between the XCDR and the EBTS in respect to RF time slots (TDMA RF interface from EBTS to SU). The goal of JITA is to reduce the amount of time the packet will wait at the EBTS before it is transmitted over its assigned RF slot. Normally JlTA is performed at the begin- ning of a call, after a cell handover and due to changes in Tl propagation delay. JITA is performed in several steps, depending on the initial misalign- ment of voice packet arrival time to the BR and the boundary of the available RF slot. Each JITA step causes a discontinuity in the inbound voice stream and could cause audio distortion ("thunks"). As a result, minimizing JITA requests will improve audio quality.