Browse Prior Art Database

WIDE AREA COMMUNICATION NETWORK RESOURCE ALLOCATION METHOD USING NEXT VALID SITE

IP.com Disclosure Number: IPCOM000008692D
Original Publication Date: 1998-Jun-01
Included in the Prior Art Database: 2002-Jul-03
Document File: 3 page(s) / 124K

Publishing Venue

Motorola

Related People

Paul Cizek: AUTHOR [+2]

Abstract

Wide area trunked communication system subscriber units are designed with site selection/ registration algorithms which utilize a combination of site preference(s) and signal strength. A subscriber unit will affiliate or register for communication services with a particular site within the wide area communications network based on the site selection algorithm. Wide area system designs require over- lapping RF coverage of each site within the network to support portable subscriber needs and offer "seamless" hand-off as a subscriber roams from one site to an adjacent site.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 50% of the total text.

Page 1 of 3

0 M MO-LA

Technical Developments

WIDE AREA COMMUNICATION NETWORK RESOURCE ALLOCATION METHOD USING NEXT VALID SITE

by Paul Cizek and Skip Moore

  Wide area trunked communication system subscriber units are designed with site selection/ registration algorithms which utilize a combination of site preference(s) and signal strength. A subscriber unit will affiliate or register for communication services with a particular site within the wide area communications network based on the site selection algorithm. Wide area system designs require over- lapping RF coverage of each site within the network to support portable subscriber needs and offer "seamless" hand-off as a subscriber roams from one site to an adjacent site.

  There are many instances in these wide area communication system networks when individual communication services are processed using resources at more than one site when a single site resource could have satisfied the service require- ment. In addition, there are cases where a service request is not processed due to lack of resource availability at a currently affiliated site and yet the service needs could have been met if processed by an adjacent site. Finally, system configurations may require site access adjustments which can be automatically invoked from the fixed end without having to adjust parameters within ,the subscriber units. All of these issues stem from a system's inability to provide immediate alternate site resource allocation based on knowledge of a subscriber unit's alternate or next valid site.

  The "next valid site" variable is defined as the next logical choice RF site to affiliate or register with based upon the site selection algorithm of a wide area communication system's subscriber unit. The site selection algorithm is typically a logical combination of values such as signal strength, site preference, site status, prior operational usage, etc. which are evaluated to determine the best operating site for the subscriber to be currently affiliated or registered to and a list of those sites next in the ranking. It is important to note that the variable "next valid site" emphasizes the term valid. The valid condition is necessary to indicate that the next site which could be...