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DUPLICATE MESSAGE DETECTION IN A PAGING TERMINAL

IP.com Disclosure Number: IPCOM000006016D
Original Publication Date: 1990-Oct-01
Included in the Prior Art Database: 2001-Nov-26
Document File: 2 page(s) / 66K

Publishing Venue

Motorola

Related People

Steve Shapiro: AUTHOR

Abstract

Paging system operators worldwide have expressed wncern that considerable air time is wasted due to duplicate pages being inputted. What typically happens is that the page sender inputs a page, waits a few minutes for the pager wearer to call back and since this doesn't occur within 5 minutes, re-enters the page. Due to the impatience of the page sender, twice the memory is consumed in the paging terminal and worse, twice the air time is used for no reason. The page receiver usually doesn't receive the page for at least 2-5 minutes and once the page is received, at least 3-10 minutes go by before that person can find a telephone to return the page. lb solve these problems, the following paging terminal enhancements are offered.

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MOlOROLA Technical Developments Volume 11 October 1990

DUPLICATE MESSAGE DETECTION IN A PAGING TERMINAL

by Steve Shapiro

   Paging system operators worldwide have expressed wncern that considerable air time is wasted due to duplicate pages being inputted. What typically happens is that the page sender inputs a page, waits a few minutes for the pager wearer to call back and since this doesn't occur within 5 minutes, re-enters the page. Due to the impatience of the page sender, twice the memory is consumed in the paging terminal and worse, twice the air time is used for no reason. The page receiver usually doesn't receive the page for at least 2-5 minutes and once the page is received, at least 3-10 minutes go by before that person can find a telephone to return the page. lb solve these problems, the following paging terminal enhancements are offered.

Since numeric paging is the most wmmon form of paging, numeric paging shall be discussed but the same method may be used for tone only and alphanumeric paging. Please refer to the attached flowchart.

   When a page input is received at the paging terminal, the paging terminal can first determine if the pager address is in queue. If not the page is put in queue. If the pager address is in queue, then the pager terminal checks to see if the message content is a perfect duplicate. If it is, then the page is not put in queue. If the message content is different, the page is put in queue. The goal of the paging terminal enha...