Browse Prior Art Database

FAULT TOLERANT ALGORITHM FOR FREQUENCY DEPENDENT DEVICES

IP.com Disclosure Number: IPCOM000006792D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2002-Feb-01
Document File: 1 page(s) / 75K

Publishing Venue

Motorola

Related People

Patricia Ann Ekstrom: AUTHOR

Abstract

The basic purpose of this invention is to offer a method for achieving fault tolerance for specific !?equency dependent features without having redundant, backup base stations programmed with these frequencies. This methodology allows for unique feature sets, such as BSI, control channel, paping, and data, to be accessible on pre-determined specific frequencies that correspond to each feature. For example, control channel operation is always done on 806.0125 MHz, BSI operation is always done on 806.0625 MHz, and so on. Each base station wiII be frequency agile so that dynamic allocation of pro- grammed frequencies can be utilized to obtain fault tol- erant protection for a desired frequency dependent feature.

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MO7WROLA INC. Technical Developments Volume 18 March 1993

FAULT TOLERANT ALGORITHM FOR FREQUENCY DEPENDENT DEVICES

by Patricia Ann Ekstrom

   The basic purpose of this invention is to offer a method for achieving fault tolerance for specific !?equency dependent features without having redundant, backup base stations programmed with these frequencies. This methodology allows for unique feature sets, such as BSI, control channel, paping, and data, to be accessible on pre-determined specific frequencies that correspond to each feature. For example, control channel operation is always done on 806.0125 MHz, BSI operation is always done on 806.0625 MHz, and so on. Each base station wiII be frequency agile so that dynamic allocation of pro- grammed frequencies can be utilized to obtain fault tol- erant protection for a desired frequency dependent feature.

  An Intellirepeater System has the abiity to reprogram the base station's receive and transmit frequency. Since each repeater is frequency agile, an algorithm will be used to dynamically reprogram the best suited base sta- tion for a failed frequency that corresponds to a particu- lar feature. Frequency agility also requires that the sys- tem has the ability to optimize its RF output. Therefore, the algorithm will also need to know what form of combiner is present within the system and act accord- ingly. Combiner configurations and algorithm operation for each configuration are discussed below.

* A wide band active device or separate antennas per channel will cause the algorithm to automati- cally adjust the frequency with no power loss to the system.

* A standard mechanical combiner will cause the algorithm to calculate, based on original combiner parameters and all of the frequencies of each phys- ical base station, which of...