Nokia Corporation

Nokia Mobile Phones Limited

Motorola Mobility LLC

Intellectual Ventures I LLC

Veijo Vänttinen

Janne Markus Muhonen

Stefano M Faccin

Tuija Helena Hurtta

Serge Haumont

Jaakko Rajaniemi

Jan Kall

Risto Antero Kauppinen

Jussi Rajala

Jari Syrjala

Ville Ruutu

Jan Kåll

Mohan Sivanandan

Huai Herman Huang

Herman Huang

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.

Telephony services in mobile IP networks

The invention relates to a packet-switched radio system and to a method of performing a function of the subscriber terminal location service in a packet-switched radio system. The method comprises the () subscriber terminal transmitting a request message for location service to the core network of the radio system via the radio system; () performing at least one function of the location service required in the request message; () the core network transmitting a response message to the subscriber terminal via the radio network.

Location of subscriber terminal in packet-switched radio system

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 the 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 the support node to the user equipment. The activate PDP context accept message acknowledges the 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.

A user equipment of a packet-switched radio system implements a user equipment location service, and has a network part with a core network and a radio network having a data transmission link to the core network and a radio link from the radio network to the user equipment. The radio network has a serving mobile location center for locating the user equipment and a second-layer logical link control relay set on the packet protocol stack. Data to be transmitted is placed in a message of a third-layer radio resource protocol, and the radio resource protocol message is transmitted to the radio network using a logical link control protocol set on the second layer of the packet protocol stack.

Data transmission in packet-switched radio system implementing user equipment location service

The invention relates to a radio system which transmits packet traffic and to a method of transmitting service information flexibly between a network part and a terminal in a radio system which transmits packet traffic and in which a connection set-up process is activated by a session management arrangement when a connection is established between the terminal () and the network part (). When service information is transmitted between the network part and the terminal, the party needing service activates the connection set-up process and during activation the party needing service indicates the need for service information and the quality of service with a message (). The party providing service responds with one or more messages () which include service information. The connection set-up process is finished without establishing a connection. This way radio path resources can be saved.

Method of transmitting service information, and radio system

A method and an arrangement are disclosed for a mobile station () of a cellular radio system to exchange capability information with the fixed parts () of the cellular radio system. The mobile station receives () capability information () from discussed parts () if the cellular radio system and compares () the received capability information () to a piece of capability information () describing the capability of the mobile station (). The mobile station transmits () to the fixed parts () of the cellular radio system a comparison result () that indicates whether matches occurred between the received capability information () and said piece of capability information () describing the capability of the mobile station ().

Method and arrangement for exchanging capability information in a cellular radio system

The invention relates to a method for connection establishment and a radio system relaying packet traffic. A terminal informs the system that it wishes to transmit data. The network part receives the message and allocates default radio resources and informs the allocated resources to the terminal. The terminal sends a first control message to inform the terminal's radio path characteristics. According to the solution of the invention, when allocating the default amount of radio resources to the terminal, the network part is arranged to reserve one or more radio blocks for the terminal's control messages. When the terminal sends the network part information about its radio path characteristics, it is arranged to inform in the message if there are additional characteristics. In that case, the terminal sends a second control message including information about its radio path characteristics.

Method for connection establishment in a radio system relaying packet-switched traffic

The invention relates to a packet-switched radio system and to a method of locating a subscriber terminal in a packet-switched radio system. In the method () the core network of the radio system transmits a location service request message to the radio network of the radio system; () the radio network transmits information to a subscriber terminal in a paging message that the subscriber terminal is requested to initiate the location service; () the subscriber terminal that received the paging message transmits a paging response message to the radio network; () the radio network transmits the paging response message to the core network; () the network part locates the subscriber terminal on the basis of the information included in the paging response message.

In a system comprising at least two different domains both supporting location services, the Gateway Mobile Location Center routing the location service requests receives a routing address for both domains, i.e., at least two addresses, if the target mobile station has subscription to both domains. In order to select via which domain the attempts should be first made to obtain the location information of the target MS is found out at least in one domain and preferably in both domains.

Selecting domain for transmitting a location service request

The object of the invention is a method, network element, and system for positioning a subscriber terminal in a packet-switched mobile telephone network, the said network comprising a core network element (SGSN,), base stations, a Base Station Controller () controlling these, and a mobile terminal; the connections in the mobile telephone network are arranged in a packet-switched fashion. The system comprises a location unit (SMLC,) for determining the position of the terminal, functionally connected with the Base Station Controller () of the mobile telephone network; the connection between the Base Station Controller () and the location unit (SMLC) is circuit-switched. The base station controller () comprises both circuit-switched (BSC) and packet-switched (PCU) functionality for processing circuit-switched, and respectively, packet-switched messages, as well as means () for establishing an association between the circuit-switched and the packet-switched functionality for the transmission of data related to a specific positioning between the packet-switched and the circuit-switched functionality.

Positioning a subscriber terminal in a packet-switched mobile telephone network

The invention relates to method and system for transmitting data between user equipment and serving mobile location center in packet-switched-radio system implementing user equipment location service. The method comprises: () data to be transmitted is placed in a message of a third-layer radio resource protocol; () the radio resource protocol message is transmitted to the radio network using a logical link control protocol set on the second layer of the packet protocol stack; () a logical link control protocol relay set on the second layer of the packet protocol stack in the radio network directs the logical link protocol message to a second party; () the second-layer logical link control protocol residing in the second party transmits the radio resource protocol message to the radio resource protocol set on the third layer; () the second party disassembles the transmitted data from the radio resource protocol message.

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Espoo, Finland

Veijo Vänttinen