Browse Prior Art Database

METHOD FOR REDUCING UPGRADE TIME FOR REMOTELY UPGRADABLE FIXED STATIONS

IP.com Disclosure Number: IPCOM000008321D
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2002-Jun-05
Document File: 1 page(s) / 62K

Publishing Venue

Motorola

Related People

Jeffrey R. Shroda: AUTHOR [+3]

Abstract

The currently proposed procedure for down- loading executable software from a central location to a group of networked repeaters at a remote site is performed by sending the data through an existing serial link such as an RS232 link to a single repeater at the site. This link operates at a maximum of 9600 baud. Once all the data is received by the single repeater, the single repeater sequentially transfers the data to all other repeaters via a local network, such as Ethernet which operates at 10 M baud.

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Technical Developments

METHOD FOR REDUCING UPGRADE TIME FOR REMOTELY UPGRADABLE FIXED STATIONS

by Jeffrey R. Shroda, Michael L. Wirtjes, and Kristin J. Cramer

BACKGROUND

  The currently proposed procedure for down- loading executable software from a central location to a group of networked repeaters at a remote site is performed by sending the data through an existing serial link such as an RS232 link to a single repeater at the site. This link operates at a maximum of 9600 baud. Once all the data is received by the single repeater, the single repeater sequentially transfers the data to all other repeaters via a local network, such as Ethernet which operates at 10 M baud.

   In trunking systems, such as 'SmartZone, the remote site reverts to site trunking during the data transfer to the s,ingle repeater because the existing serial link can no longer be used for site control purposes. The site will then revert to a "site off' state when transferring the data from the single repeater to the remaining repeaters at the site. Therefore, the existing methodology requires trunk- ing services to be reduced for an excessive amount of time when the remote site's software is upgraded from a centralized location using Flash technology.

SOLUTION

  Since the data transfer rate for the serial link is much slower than the data transfer rate for the local network, the solution to this problem proposes dividing the entire data into smaller partitions and transferring these part...