EMERGENCY CALL IN A PACKET SWITCHED WIRELESS COMMUNICATION NETWORK

EMERGENCY CALL IN A PACKET SWITCHED WIRELESS COMMUNICATION NETWORK

An emergency telephone call is supported and routed to a Public Safety Answering Point (PSAP) in an IP based packet switched wireless communications network. An activate PDP context request is sent from a user equipment to the network. A parameter in said activate PDP context request indicates that...

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Hauptverfasser: HAUMONT, SERGE, HURTTA, TUIJA, KALL, JAN, FACCIN, STEFANO, RAJANIEMI, JAKKO, SYRJALA, JARI, KAUPPINEN, RISTO, HUANG, HERMAN, MUHONEN, JANNE, VANTINEN, VEIJO
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
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creator HAUMONT, SERGE
HURTTA, TUIJA
KALL, JAN
FACCIN, STEFANO
RAJANIEMI, JAKKO
SYRJALA, JARI
KAUPPINEN, RISTO
HUANG, HERMAN
MUHONEN, JANNE
VANTINEN, VEIJO
description An emergency telephone call is supported and routed to a Public Safety Answering Point (PSAP) in an IP based packet switched wireless communications network. An activate PDP context request is sent from a user equipment to the network. A parameter in said activate PDP context request indicates that the PDP context will be used to transfer an emergency call. An activate PDP context accept message is returned from said support node to said user equipment. Said activate PDP context accept message acknowledges said activate PDP context request message and provides the address of a call state control function. A call setup request transferred to the call state control function includes the Service Area Identity (SAI). The call state control function selects a PSAP based, at least in part, on the SAI included in the call setup request and forwards the emergency call to the selected PSAP.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
WIRELESS COMMUNICATIONS NETWORKS
title EMERGENCY CALL IN A PACKET SWITCHED WIRELESS COMMUNICATION NETWORK
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