Telefonaktiebolaget Lm Ericsson (publ)

Hung Tran

Jean-Francois Bertrand

Donald Joong

Suhail Hasan

George Foti

Francis Lupien

Bartosz Balazinski

Wayne S Tom

Miguel Cobo

Kim Phuc Vo

Zeng-Jun Xiang

Francois Leduc

Shohreh Savoli

Yang Lu

A method and a Packet Data Service Node (PDSN) of restricting geographical use of a service for a mobile terminal (MT) in a packet data telecommunications network. The PDSN receives from an access node (AN), a registration request message having a cell information for requesting. The PDSN translates the cell information into a zone ID, stores the zone ID in a first table and sends to a AAA server, an access request message for authenticating the MT. PDSN further receives from the AAA server, an access accept message for authorizing the MT to receive packet data service, wherein the access accept message includes an allowance information. Afterwards the PDSN compares the allowance information with the zone ID. If the allowance information is different from the zone ID in the first table, the PDSN set up a filter for the MT and rejects packet data for the requested packet data service.

Geographical restriction of services in a packet data telecommunications network

A system and method of providing an integrated wireless telecommunications network including a cellular network portion and a packet-switched network portion. The cellular network portion provides legacy mobile telecommunications functionality to mobile subscribers. The packet-switched network portion is provided for transporting communication traffic, wherein the communication traffic comprises traffic originated from a mobile subscriber, traffic intended for a mobile subscriber, or both. The network also includes a gateway disposed between the cellular network portion and the packet-switched network portion for providing a communication path therebetween. An interworking interface module is provided between the cellular network portion and the packet-switched network portion. The interworking interface module preferably comprises a mobility gateway and an IP client (or proxy), wherein the mobility gateway handles mobility management information and the translation of control signaling information between the cellular network portion and the packet-switched network portion. The IP client handles communication traffic with one or more associated servers disposed in the PSN with respect to, e.g., mobility management, security/authentication, and subscriber services of the mobile subscriber.

System and method for providing wireless telephony over a packet-switched network

In a General Packet Radio Service (GPRS) network, a system and method of dynamically allocating an Internet Protocol (IP) address to a mobile terminal (MT) operating in the network. A Gateway GPRS Service Node (GGSN) requests IP addresses over the Gi interface from a Radius server in an IP-based network. A Conditional PDP Address (CPA) parameter is stored in the MT's Home Location Register (HLR) as part of the user subscriber data, and is passed to the GGSN during the GPRS Attach procedure. The CPA parameter indicates whether the subscriber is entitled to a backup IP address in case of failure to obtain one over the Gi interface, and whether the MT is a user of a real-time application. A timer in the GGSN sets a maximum time period (Ti) that the GGSN will wait for a response from the server, and a counter (Ni) sets the maximum number of requests that are sent. A Network Access Server (NAS) in the GGSN sends a request for an IP address from the GGSN to the server, and determines whether Ti expires without receiving a response from the server. If no response is received, the GGSN allocates an IP address. A public IP address is allocated only if the MT is a user of a real-time application. Otherwise, a private IP address is allocated.

Dynamic IP address allocation system and method

A system and method for providing multiple endpoints in a single proxy device disposed in a packet-switched network system comprising a gatekeeper. The proxy device is configured with an alias address and transport address. Each endpoint is provided with its own alias address also. When the proxy device is registered at the gatekeeper, a registry table therein is updated by creating an association between the proxy device's transport and alias addresses. For each endpoint that is powered up, a Registration Request message is sent from the proxy device to the gatekeeper. The Registration Request message includes the alias address of the endpoint. In response, the registry table in the gatekeeper is updated by creating an association between the transport address of the proxy device and the endpoint's alias address received, without replacing or deleting previous associations between the proxy device's transport address and other alias addresses.

System and method for providing multiple endpoints in a device disposed in a packet-switched network

A method and apparatus for filtering responses to a gatekeeper discovery request message that is multicast from a mobile terminal to a plurality of gatekeepers in a communications network so that an optimum gatekeeper can be selected. When using the H.323 protocol, an enhanced Gatekeeper Request (GRQ) message includes criteria for an optimum gatekeeper for the mobile terminal. Each gatekeeper, upon receiving the enhanced GRQ message, determines whether it meets the criteria in the request message. If so, a confirmation message is sent to the mobile terminal from each gatekeeper that meets the criteria. In an alternative embodiment, gatekeepers that receive the enhanced GRQ message send a response indicating their capabilities to meet each of the criteria. The mobile terminal then determines the optimum gatekeeper by comparing the reported gatekeeper capabilities to the optimum gatekeeper criteria.

Method of filtering responses to gatekeeper discovery multicast request message

A system and method for interactively selecting call treatment in real time for an incoming call in a radio telecommunications network. A modified mobile station includes a display, a browser application that presents call information regarding the incoming call and call-treatment options on a pop-up menu the display, a keypad for a user to select a call-treatment option, and a Client Access Function Teleservice (CATS) handler that packages the selected call-treatment option in an IS-136 R-DATA message and sends the R-DATA message to a modified mobile switching center (MSC). The MSC determines that the R-DATA message is a CATS message from the value of the Higher Layer Protocol Identifier (HLPI) in the R-DATA message, and sends the call-treatment option to a modified service node in a short message service (SMS) message. A server in the service node receives the SMS message from the MSC, extracts the selected call-treatment option, and translates the call-treatment option into service scripts understood by the service node.

System and method for real-time interactive selection of call treatment

A system and method in a radio telecommunications network of storing calling line identification (CLI) information when a called mobile terminal is not available to receive the CLI information, and forwarding the CLI information to the called mobile terminal when the terminal becomes available. When an incoming call for the mobile terminal is received in a gateway mobile switching center (G-MSC), the Home Location Register (HLR) or the visited MSC (V-MSC) where the mobile terminal is operating determines whether the mobile terminal is available. If not, the G-MSC sends a short message service (SMS) point-to-point (PTP) message to a message center (MC) and includes the CLI information. The MC is notified when the mobile terminal becomes available. The MC then forwards the CLI information to the V-MSC in a SMS PTP message. The V-MSC sends the CLI information to the mobile terminal in a IS-136 R-DATA message or other appropriate data message.

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Montreal, Canada

Hung Tran