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STEERING ALGORITHM FOR IMPROVED TRUNKED SYSTEM RESOURCE UTILIZATION

IP.com Disclosure Number: IPCOM000006822D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2002-Feb-05
Document File: 4 page(s) / 169K

Publishing Venue

Motorola

Related People

Mark Shaughnessy: AUTHOR [+2]

Abstract

This paper describes an algorithm for optimizing communication resource usage in a trunked radio sys- tem. It works by moving non-specialiied calls, such as traditional analog dispatch, off of resources that are equipped for specialized functions, such as telephone interconnect or digital voice, while the call is in prog- ress. A method is described herein to maximiie the use of all communication resources through the use of intel- ligent steering and call reassignment, while at the same time maintaining the cost effective partitioning of capa- bilities among the communication resources. This algo- rithm could be incorporated into the processing rou- tines for handling call requests in tnmking systems.

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MOTOROLA INC. Technical Developments Volume 10 March 1993

STEERING ALGORITHM FOR IMPROVED TRUNI<ED SYSTEM

RESOURCE UTILIZATION ~

by Mark Shaughnessy and Richard Ng

SUMMARY

   This paper describes an algorithm for optimizing communication resource usage in a trunked radio sys- tem. It works by moving non-specialiied calls, such as traditional analog dispatch, off of resources that are equipped for specialized functions, such as telephone interconnect or digital voice, while the call is in prog- ress. A method is described herein to maximiie the use of all communication resources through the use of intel- ligent steering and call reassignment, while at the same time maintaining the cost effective partitioning of capa- bilities among the communication resources. This algo- rithm could be incorporated into the processing rou- tines for handling call requests in tnmking systems.

PROBLEMS THAT THIS ALGORITHM RESOLVES

  Due to economic constraints or enhancements to technology, the RF repeater resources in real trunking systems are generally not deployed with equal capabii- ties. This leads to a partitioning of the resource "pool: Some repeater resources, for example, do not have the special connections necessary to allow a call on them to be connected to the telephone network. Thus, those repeaters can never be assigned for use by a telephone interconnect requester. Other older repeaters may not be capable of transceiving digitized voice or data mes- sages. It is assumed here that some of the resources can perform multiple duties, such as digital and analog voice dispatch, or telephone interconnect and analog dispatch. As a group, this paper refers to these types of resources as "specialized? Those that can support only one type of function are referred to as "non-specializes' resources.

  Today a call that requires only a non-specialized resource can, depending on the call activity on the sys- tem when the request arriies, be assigned to a special- ized resource. During the period that the non-specialized call is active on the specialized resource, that resource is unavailable for a subsequent specialized requester Since the resource assignments in a tmnking system are highly dynamic, it is very likely that during the non-specialized call period a non-specialized resource may become available.

  Without this algorithm, that newly available non- specialized resource would lay waiting, even when, as in this example, it would be more efficient to move the non-specialized call in progress to it, thus freeing up the specialized resource. Use of this algorithm will reduce average queue times for those users requiring a special- ized grade of service such as digital voice, telephone interconnect, or part-time data.

  Today's systems also ~&ffer because they can not allow an upgrade from a non-specialized resource to a specialized resource while the call is in progress.

  This algorithm could ialso improve the equality of loading on the communic&ion resour...