Browse Prior Art Database

CALL RE-ESTABLISHMENT, MSC INITIATED

IP.com Disclosure Number: IPCOM000009765D
Original Publication Date: 2000-May-01
Included in the Prior Art Database: 2002-Sep-17
Document File: 1 page(s) / 64K

Publishing Venue

Motorola

Related People

Kamala Urs: AUTHOR [+3]

Abstract

In cellular systems, dropped calls are an impor- neighbors). If this fails, the MSC can initiate a page taut issue. Reducing the frequency of dropped calls over the entire location area. At any time the conhelps the operator increase revenue. One of the nected party can terminate this procedure through causes of dropped calls is transient loss of coverage. DTMF input.

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MOTOROLA

Technical Developments

CALL RE-ESTABLISHMENT, MSC INITIATED

by Kamala Urs, Dan Coombes and Valy Lev

In cellular systems, dropped calls are an impor- neighbors). If this fails, the MSC can initiate a page taut issue. Reducing the frequency of dropped calls over the entire location area. At any time the conhelps the operator increase revenue. One of the nected party can terminate this procedure through causes of dropped calls is transient loss of coverage. DTMF input.

Frequently the mobile reappears and is able to continue the call, but the call has already been dropped . If the mobile responds to the page, the MSC in the infrastructure. We would like to preserve will send a Setup message and will assign a new these calls whenever possible. channel. The mobile user will know that this is a call continuation, but the subscriber unit will not.

GSM has a call re-establishment feature. This feature allows the subscriber to signal the infrastruc- New MMI wilt be available to program the ture that it will like to continue a previously dropped MSC with the operator's requirements. The followcall. If the call still exists within the infrastructure, ing options will be available:

the subscriber can be reconnected to it. However, call re-establishment requires support by the mobile. no can re-establishment allowed in order to request the service. We would like to provide this capability to legacy subscriber units that. call re-establishment allowed until timer t have not been m...