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Browse Prior Art Database

RADIO SYSTEM RESOURCE REQUEST PRIORITIZATION

IP.com Disclosure Number: IPCOM000006560D
Original Publication Date: 1992-Aug-01
Included in the Prior Art Database: 2002-Jan-15
Document File: 2 page(s) / 108K

Publishing Venue

Motorola

Related People

Gary Grube: AUTHOR [+2]

Abstract

This invention is related to the field of communica- tions via a trunked radio system. Typically, such high performance radio systems employ a dedicated chan- nel, or "control channel:' to communicate system resource requests and grants between the system con- troller and the field communication units. While such a scheme efficiently supports radio sites with a high trathc density pattern, it is less desirable to use the same for- mat in areas where coverage is required but the trafftc density is low. A combination of such coverage schemes is now becoming typical for private users with state wide radio networks.

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MOTOROLA INC. Technical Developments Volume 16 August 1992

RADIO SYSTEM RESOURCE REQUEST PRIORITIZATION

by Gary Grube and Marc Naddell

  This invention is related to the field of communica- tions via a trunked radio system. Typically, such high performance radio systems employ a dedicated chan- nel, or "control channel:' to communicate system resource requests and grants between the system con- troller and the field communication units. While such a scheme efficiently supports radio sites with a high trathc density pattern, it is less desirable to use the same for- mat in areas where coverage is required but the trafftc density is low. A combination of such coverage schemes is now becoming typical for private users with state wide radio networks.

  A new class of trunking systems exist that allow for the dynamic shiiig between a dedicated control chan- nel operation and a non-dedicated control channel oper- ation. For example, a dedicated control channel is established and voice/data channel assignments are made to free channels at that site. Once the full compliment of channels become utilized the new class of system will allow the control channel to be temporarily assigned as a voice channel to increase the site capacity. While the control channel is not available, field communication units internally queue any requests until the control chan- nel is activated again. When a call ends, and a channel can be once again established to serve as the control channel, a mad rush of resource requests may occur. Subsequent resource allocation goes first to those who get their request signal transmitted tirsst, even ifthey hadn't been waiting as long as some of the others. This new invention will focus on the aspect of aIIocating resources in the order of need, not in the order of request signals received.

  A solution is sought to fairly assign resources in the order of the stimulus at the subscriber radios, not at the central controller. This problem will be solved with this new invention.

This new invention describes a way to rank order

the new rush of requests based not on when the request signal is received but rather when the radio operator had stimulated the radio for the original request. This will more fairly resemble the way the order that resources are assigned when the control channel is always available.

  Refer to Figure 1 for...