Browse Prior Art Database

MAXIMIZING BANDWIDTH FOR VOICE IN A CONVENTIONAL DATA / VOICE SYSTEM

IP.com Disclosure Number: IPCOM000008297D
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2002-Jun-04
Document File: 1 page(s) / 69K

Publishing Venue

Motorola

Related People

Andrew Stankoskey: AUTHOR [+4]

Abstract

Motorola has been developing communication systems to comply with the APCO Project 25 speci- fication. The first phase of this project was ASTRO release 1.7. This release introduced APCO's data on conventional RF digital voice communication systems. This invention provides additional controls into ASTRO 3.0 conventional systems to optimize bandwidth for voice messages.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 51% of the total text.

Page 1 of 1

MOroRoLA Technical Developments

@

MAXIMIZING BANDWIDTH FOR VOICE IN A CONVENTIONAL DATA / VOICE SYSTEM

by Andrew Stankoskey, Karen M. Upp, Craig J. Collins, and James Eastwood

ABSTRACT

  Motorola has been developing communication systems to comply with the APCO Project 25 speci- fication. The first phase of this project was ASTRO release 1.7. This release introduced APCO's data on conventional RF digital voice communication systems. This invention provides additional controls into ASTRO 3.0 conventional systems to optimize bandwidth for voice messages.

MOTIVATION

  Contention control and system sizing are important considerations in designing a communication system in which both data and voice traffic must co-exist.

This invention optimizes the use of the channel for voice when host services (data) are not available.

PROBLEM DESCRIPTION

  In a conventional voice/data system, devices attempt data transmission when fixed host services are not available. Mobile data peripherals (MDPs) are unaware that the fixed host's data services are not available. Data transmission by multiple devices precludes use of the channel for voice. This reduces bandwidth available for voice.

SOLUTION

  This solution provides the MDP with the necessary information to determine if its desired host service is available (IP, Registration, Encryption, Short messaging, OTAR services, etc.). During the registration process, the MDP is provided with its specific host service information via the authoriz...