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Browse Prior Art Database

DISTRIBUTION OF DCE ARCHITECTURE

IP.com Disclosure Number: IPCOM000008320D
Original Publication Date: 1997-Sep-01
Included in the Prior Art Database: 2002-Jun-05
Document File: 1 page(s) / 61K

Publishing Venue

Motorola

Related People

Brett Gilmer: AUTHOR

Abstract

For IDEN subscriber units, CPU utilization, ROM, and RAM are resources which are constantly being pushed to the limits. The multi-service nature of the radio creates a (probably non-unique) problem in that we can not provide all customer-desired features in a single software load which will fit within memory requirements or CPU performance requirements.

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MO-LA Technical Developments

DISTRIBUTION OF DCE ARCHITECTURE

by Brett Gilmer

PROBLEM DESCRIPTION

  For IDEN subscriber units, CPU utilization, ROM, and RAM are resources which are constantly being pushed to the limits. The multi-service nature of the radio creates a (probably non-unique) problem in that we can not provide all customer-desired features in a single software load which will fit within memory requirements or CPU performance requirements.

  For instance, the subscriber unit's host processor is having difftculty handling the increased loads that are caused by data encryption and compression.

SOLUTION

  The proposed solution is to distribute the archi- tecture of the DCE. A driver would be installed on the external computer to which the subscriber unit is connected.

  Some of the CPU intensive tasks such as data compression or data encryption would be resident within this driver.

  Additionally, AT commands could be parsed within this driver. The (now parsed) AT commands would be sent to the subscriber units as encoded command packets, freeing up valuable RAM

resources which would have otherwise been used for this purpose. A design consideration would be whether to still include the AT command parsing functionality in the subscriber software. The justiti- cation of their presence is so that the DCE will still function when the customer wishes to use a DTE for which the driver has not been implemented. An AT command could be implemented which disables further AT...