Browse Prior Art Database

SUPPORT OF MULTIPLE SPEED RADIOS VIA MULTIPLE CONTROL CHANNELS

IP.com Disclosure Number: IPCOM000007835D
Original Publication Date: 1996-Aug-01
Included in the Prior Art Database: 2002-Apr-29
Document File: 2 page(s) / 97K

Publishing Venue

Motorola

Related People

Bob Clinkert: AUTHOR [+3]

Abstract

In wireless, trunked communication systems, mobile radio system access occurs over control chan- nels. The control channels carry most of the control- related messages in the system including, but not limited to: origination requests, channel assignments, power control, time alignment and system resource availability. One of the fixed, limiting mobile radio communications parameters is the rate at which the mobile can transmit and receive data. This parame- ter will be referred to as the "speed" ofthe radio. As with most high-tech devices design, mobile radio design is continually improving. Higher speed radios continue to be developed aher older, slower speed mobile radios have been deployed. Current wire- less, trunked infrastructure does not support the use of mobile radios operating at different speeds. Infrastrcture operators are left with the choice between obsoleting their currently deployed mobile radios, or selling their new customers older technol- ogy radios. This report describes a method of supporting sets of heterogeneous speed mobile radios within a single, wireless, trunked system.

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8 Mo7vRoLA Technical Developments

SUPPORT OF MULTIPLE SPEED RADIOS VIA MULTIPLE CONTROL CHANNELS

by Bob Clinkert, Todd Fisher and Alan Grau

INTRODUCTION

maintain a list of base stations, frequencies, fleets, and subscribers which run at that rate. One or more control channel will be allocated for each commu- nication rate.

  Mobile radios operating at speed "n" will uti- lize control channel(s) running at speed n, and will be allocated channels operating at speed n. Radios operating at speed "m" (m > n) will be handled in a similar manner. New repeaters, operating at higher speeds would be added to the infrastructure, and would make up the pool of higher-speed resources. The currently deployed repeaters would make up the initial pool oflower-speed resources.

  In wireless, trunked communication systems, mobile radio system access occurs over control chan- nels. The control channels carry most of the control- related messages in the system including, but not limited to: origination requests, channel assignments, power control, time alignment and system resource availability. One of the fixed, limiting mobile radio communications parameters is the rate at which the mobile can transmit and receive data. This parame- ter will be referred to as the "speed" ofthe radio. As with most high-tech devices design, mobile radio design is continually improving. Higher speed radios continue to be developed aher older, slower speed mobile radios have been deployed. Current wire- less, trunked infrastructure does not support the use of mobile radios operating at different speeds. Infrastrcture operators are left with the choice between obsoleting their currently deployed mobile radios, or selling their new customers older technol- ogy radios. This report describes a method of suppor...