Browse Prior Art Database

DYNAMIC USE OF VOTING EQUIPMENT BASED ON CALL TYPE

IP.com Disclosure Number: IPCOM000008227D
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2002-May-29
Document File: 1 page(s) / 54K

Publishing Venue

Motorola

Related People

Robert A. Biggs: AUTHOR [+2]

Abstract

Existing "vote and hold" voice comparator systems and "data" voters, which by their nature, require a decoded packet. In the integrated voice and data system (VRMIOO analog data on trunking system) at hand, both data and voice are transmitted on the same paths. As a consequence, a voice comparator would destroy data messages, whereas a data comparator would not be able to find packets in a voice message. As a result, no comparison would take place if the voice were not packetized.

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MO7VROLA Technical Developments

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DYNAMIC USE OF VOTING EQUIPMENT

BASED ON CALL TYPE

by Robert A. Biggs and William A. Castelli

ABSTRACT

  Existing "vote and hold" voice comparator systems and "data" voters, which by their nature, require a decoded packet. In the integrated voice and data system (VRMIOO analog data on trunking system) at hand, both data and voice are transmitted on the same paths. As a consequence, a voice comparator would destroy data messages, whereas a data comparator would not be able to find packets in a voice message. As a result, no comparison would take place if the voice were not packetized.

PROBLEM DESCRIPTION

   Typically in wide-area voted systems, comparators are used to continually decide on the best audio source. During one call, several sources may be selected. This voting can be destructive to data modulation, as the data stream is phase sensitive.

SOLUTION

  When a channel request is made, the trunked controller is informed of the type of message the mobile communication unit is requesting, i.e., voice or data. The tnmked controller will assign a comparator to vote one time for the duration of a data message. Standard continuous vote and hold procedures are applied by the comparator to voice messages. The flow chart demonstrates the new call process.

ADVANTAGES

  Since the trunked controller will assign a comparator to vote one time for the duration of a data message, the data will not be corrupted by the voting process and equipment. Th...