Browse Prior Art Database

BACKUP VALID TALKGROUP

IP.com Disclosure Number: IPCOM000007666D
Original Publication Date: 1996-May-01
Included in the Prior Art Database: 2002-Apr-12
Document File: 2 page(s) / 78K

Publishing Venue

Motorola

Related People

Judy Schmitt: AUTHOR

Abstract

In an effort to minimize busy conditions in low- density SmartZone sites, it is necessary to control system traffic that is spread across many sites. The SmartZone Site Access Control feature allows a sys- tem manager to restrict specific talkgroup access and/or afftliation to only certain sites. By entering these restrictions into the Zone Manager, the sys- tem manager can reduce the number of sites that a given talkgroup call will use.

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Page 1 of 2

Technical Developments

BACKUP VALID TALKGROUP

by Judy Schmitt

  In an effort to minimize busy conditions in low- density SmartZone sites, it is necessary to control system traffic that is spread across many sites. The SmartZone Site Access Control feature allows a sys- tem manager to restrict specific talkgroup access and/or afftliation to only certain sites. By entering these restrictions into the Zone Manager, the sys- tem manager can reduce the number of sites that a given talkgroup call will use.

If radio users are unaware of these restrictions, tbey can potentially roam into coverage of sites that

will not allow their talkgroup to affiliate, causing them to be without communications. If a radio on a given talkgroup roams into the coverage area of a site where the talkgroup is set up as invalid, the radio will keep scanning for a site that is valid for that talkgroup. Ifthe radio is completely out of cov- erage of a valid site for its talkgroup, the radio will continue to scan until it finds a valid site. In figure 1 below, Radio X is not allowed to use Site 2, since TG A is invalid at that site. If Radio X is out of the coverage areas of Site 1 or Site 3, Radio X will con- tinue to scan for a site valid for TG A.

Site 2

TG A Invalid

&a

1

Radio X

Using TG A

Cannot use Site #2

Fig. 1

Q Mmorola. Inc. 19% 85 May 1996

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M-ROLA Technical Developments

  Currently, radio users can manually switch their...