Browse Prior Art Database

Method to Determine FDMA/TDMA Capable Channel Assignment

IP.com Disclosure Number: IPCOM000197676D
Original Publication Date: 2010-Jul-19
Included in the Prior Art Database: 2010-Jul-19
Document File: 2 page(s) / 37K

Publishing Venue

Motorola

Related People

Mistro, John: INVENTOR [+2]

Abstract

For voice, when assigning a RF channel resource for an FDMA call at an RF Site with mixed FDMA only and Dynamic FDMA/TDMA RF channels, the call controller will assign the call to an anassigned FDMA only channel over an unassigned Dynamic FDMA/TDMA capable channel, all other things being equal. -the benefit is to keep the Dynamic FDMA/TDMA channel open -- so that either FDMA/TDMA call type could be serviced with future assignments. Likewise for voice, when assigning a RF channel resource for a TDMA call at an RF Site with mixed TDMA only and Dynamic FDMA/TDMA RF channels, the call controller will assign the call to an unassigned TDMA only channel over an unassigned Dynamic FDMA/TDMA capable channel, all other things being equal. For Voice, when assigning a TDMA call to either 1) an one or two TDMA only channel slots or a Dynamic FDMA/TDMA channel with one open slot, the call controller will assign the call to the open TDMA only channel slot. This is to preserve the Dynamic FDMA/TDMA channel -- so that either FDMA/TDMA call type could be serviced with future assignments. For Data calls: The system will assign IV&D data calls using the following preferences: (1st) FDMA Only channels, (2nd) Dynamic channels, (3rd) TDMA Only channels. The logic here is that we need to allow IV&D data calls on TDMA only channels & favor the call going to an FDMA type channel first - as a Data call is an FDMA type call.

This text was extracted from a Microsoft Word document.
This is the abbreviated version, containing approximately 54% of the total text.

Method to Determine an FDMA or TDMA Channel Assignment at a Site with Mixed FDMA only, TDMA only, or FDMA/TDMA Capable Channels

By Dan McDonald, John Mistro

Motorola, Inc.

Networks Business

 

ABSTRACT

An RF site may have any combination of FDMA only, TDMA only, and/or FDMA/TDMA capable RF channel resources. This method describes a method to assign, in the most logical and efficient manner, FDMA calls and TDMA calls at such sites. 

It should be noted that, in this method,  voice calls may be assigned in an FDMA or TDMA manner – with FDMA voice calls being allowed on FDMA only or FDMA/TDMA capable voice channels; TDMA voice calls are allowed on TDMA only or FDMA/TDMA capable voice channels. Data calls may be assigned in an FDMA manner and that the rules for voice and data calls given within differ; most notably that FDMA data calls may be allowed on any of the channel types, including TDMA only capable voice channels.

PROBLEM

A method is required to:

1) Enable the efficient assignment of RF Channels at an RF Site when the RF Site contains channels that can only support FDMA calls, only support TDMA calls and/or support either FDMA or TDMA calls.

2) Assign an FDMA RF channel resource for an FDMA voice call at an RF Site with mixed FDMA only and Dynamic FDMA/TDMA channels;

3) Assign a TDMA RF channel resource for a TDMA voice call at an RF Site with mixed TDMA only and Dynamic FDMA/TDMA channels;

4) Assign a FDMA data call to any of the voice channel types.

SOLUTION

This method provides a means for a call controller to most efficiently assign FDMA or TDMA voice calls at sites with mixed FDMA and/or TDMA capability. This method also allows for a call controller to most efficiently assign an FDMA data call to an RF channel at such mixed sites.

OPERATION

Operation 1: For voice, when assigning a RF channel resource for an FDMA call at an RF Site with mixed FDMA only and Dynamic FDMA/TDMA RF channels, the call controller will assign the call to an unassigned FDMA only channel before assigning it to an unassigned Dynamic FDMA/TDMA capable channel, all other things being equal. This allows the system to keep the Dynamic FDMA/TDMA channel unassigned – the benefit being the ability to assign either an FDMA OR TDMA type call to the dynamic FDMA/TDMA channel when future voice call assignments are requested.

Operation 2: Likewise for voice, when assigning a RF channel resource for a TDMA call at an RF S...