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User-to-User Signaling (UUS) Supplementary Service Enriched Emergency Calls in Mobile Communication Systems

IP.com Disclosure Number: IPCOM000125880D
Original Publication Date: 2005-Jul-25
Included in the Prior Art Database: 2005-Jul-25
Document File: 2 page(s) / 33K

Publishing Venue

Siemens

Related People

Juergen Carstens: CONTACT

Abstract

In existing mobile communication systems like GSM (Global System for Mobile Communications) or UMTS (Universal Mobile Telecommunications System) emergency calls have been defined. The system and/or access technology selection has to result in a call handling that satisfies the regulatory requirements and the user expections. Today, 3GPP (Third Generation Partnership Project) specifications of emergency calls cover the voice calls only, whereas additional, valuable information available at the mobile terminal is not used. Additionally, discussions in the regulatory bodies are ongoing that assess the necessity of including additional valuable information as complement to today's emergency calls. The new idea addresses the provision of additional valuable information available at the mobile station as part of an emergency call. The main goal of the idea is to use the already existing, well standardized, already supported by most of the networks, and robust User-to-User Signaling (UUS) Supplementary Service specified by 3GPP TS 23.087 to transfer a data component, beyond voice as part of an "enhanced emergency call" and to ensure that they are handled as one single "enhanced emergency call" by the networks which it traverses. In case of an emergency call the data component is autonomously sent by the phone without any additional action by the caller, who just needs to dial the emergency number or to press the SOS button.

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User-to-User Signaling (UUS) Supplementary Service Enriched Emergency Calls in Mobile Communication Systems

Idea: Enric Mitjana, DE-Munich; Martin Oettl, DE-Munich; Meik Kottkamp, DE-Munich

In existing mobile communication systems like GSM (Global System for Mobile Communications) or UMTS (Universal Mobile Telecommunications System) emergency calls have been defined. The system and/or access technology selection has to result in a call handling that satisfies the regulatory requirements and the user expections. Today, 3GPP (Third Generation Partnership Project) specifications of emergency calls cover the voice calls only, whereas additional, valuable information available at the mobile terminal is not used. Additionally, discussions in the regulatory bodies are ongoing that assess the necessity of including additional valuable information as complement to today's emergency calls.

The new idea addresses the provision of additional valuable information available at the mobile station as part of an emergency call. The main goal of the idea is to use the already existing, well standardized, already supported by most of the networks, and robust User-to-User Signaling (UUS) Supplementary Service specified by 3GPP TS 23.087 to transfer a data component, beyond voice as part of an "enhanced emergency call" and to ensure that they are handled as one single "enhanced emergency call" by the networks which it traverses. In case of an emergency call the data component is autonomously sent by the phone without any additional action by the caller, who just needs to dial the emergency number or to press the SOS button.

When using the User-to-User Signaling (UUS) Supplementary Service, the data component and the voice component are treated as a single unique "service" by the network (i.e. the voice call and the additional data component are appropriately given the maximal preference that ensures that the enhanced emergency call is routed appropriately inside the networks and that the components do not face unnecessary delays and are being received commonly at the emergency call center. This may include that the emergency call has more preference than other calls.

The UUS supplementary service allows the transfer of User-to-User Information to a remote subscriber (e.g. emergency center) over the signaling channel in association with a voice call. The UUS supplementary service is divided in Service 1, Service 2 and Service 3:

* The UUS Service 1 allows the transfer of a small data component embedded within Call Control messages. E.g. the additional data information can be transferred within the Call Control messages already...