Samsung Electronics Co., Ltd.

Nortel Networks Corporation

Nhut Nguyen

Matt Wu

Hakan Ernam

Scott Fang

Patrick N Sollee

Kong Posh Bhat

Joseph S Ho

Joseph S M Ho

Stephen R Kolski

Lai-Tee Cheok

Wen-Yang Chang

Rosa Lin

Hojin Ha

Methods and devices for managing devices not directly accessible to device management server are provided. A device for communicating a Location Update Alert message to a Device Management (DM) Server via a DM Gateway includes a memory for storing code of a DM client and a plurality of DM MOs, each of the plurality of DM MOs including one or more nodes, a processor for executing the code of the DM client stored in the memory, a communications unit for receiving and sending messages for the DM client, and the DM client for communicating a Location Update Alert message to the DM Server via the DM Gateway upon detecting a change in an address of the device, based on a LocationUpdate node of at least one of the plurality of DM MOs.

Techniques for managing devices not directly accessible to device management server

The present disclosure relates generally to systems and methods for providing secure network access in fixed mobile converged telecommunications systems. In one example, a method includes establishing, by a fixed access device, a connection with a mobile terminal over an air interface. The fixed access device may also establish a limited channel with a service provider network via a broadband interface. The limited channel is restricted to messages meeting one or more criterion. The mobile terminal may be authenticated with the service provider network via the limited channel using authentication information associated with the mobile terminal, and the service provider network has a preexisting relationship with the mobile terminal. A secure channel may be established between the fixed access device and the service provider network after the mobile terminal is authenticated. The secure channel may enable the mobile terminal to communicate with the service provider network using messages not meeting the criterion.

System and method for providing secure network access in fixed mobile converged telecommunications networks

A system for securely storing data is provided. The system includes a transformation component operable to scramble or encrypt the data, a dissection component operable to divide the data into a plurality of segments, and a storage component operable to store the plurality of segments in a plurality of memory locations. These components can operate various schemes identified by encoded identifiers and new schemes can be added to the system at any time. A user device can use a combination of a transformation scheme, a dissection scheme, and a storage scheme to protect stored private data at any point in time. The combination can be changed quickly by the user device autonomously or upon receiving an instruction to do so.

Method and apparatus for secure storing of private data on user devices in telecommunications networks

The present disclosure relates generally to systems and methods for protecting emergency response services in telecommunications systems from attack. In one example, a system may include a network, a token generator, and a token validator. The network may be configured to communicate with a client via a network interface. The token generator is coupled to the network and configured to generate at least one token based on information associated with the client. The token contains sufficient information for the network to independently validate the client when an emergency response service request is sent by the client to the network. The token validator is coupled to the network and configured to perform a validation process on the token when the token is sent by the client to the network over the network interface. The network is configured to connect the emergency response service request only if the token is validated.

System and method for protecting emergency response services in telecommunication networks from attack

A method for preventing service disruption for a device in a network is provided. The method includes populating a filter list with an IP address declared to be valid for a server in the network and populating a rainy day list with an IP address discovered to be valid for the server. The method also includes requesting a DNS server to resolve a server domain name to a server IP address. When no response to the request is received, an IP address on the rainy day list is used to attempt to contact the server. When a response is received, the received IP address is compared to an IP address on the filter list or the rainy day list. When the received IP address matches an IP addresses on the filter list or the rainy day list, the received IP address is used to contact the server.

Method and system for preventing service disruption of internet protocol (IP) based services due to domain name resolution failures

A test controller for use in a telecommunication system is provided for inexpensively and quickly testing a telecommunication device. The test controller receives a test call from an originating terminal and allocates a voice path within the telecommunication device for the test call to establish a call connection for the test call between the originating terminal and a destination terminal via the allocated voice path and a packet-switched network.

Apparatus and method for testing voice systems in a telecommunication network

A multi-participant service creator Application Server embeds routing information within a service identifier provided to enable invitation of users to a multi-participant service such as conference calling or push-to-talk communication. A multi-participant service routing function associated with the Serving Call Session Control Function receiving a request to join the multi-participant service checks the embedded routing information and ensures that the join request is routed to the service creator Application Server.

Request routing mechanism for distributed multi-participant service application servers in an internet protocol multimedia subsystem network

A telecommunication node controls overload conditions in a distributed processing environment using processing nodes that include: (i) a load monitor configured to monitor a loading factor for the processing node and produce real-time loading factor information; and (ii) a call processor operable to process signaling messages. In addition, the telecommunication node uses signaling nodes that include: (i) a load information list including the real-time loading factor information received from each of the processing nodes; (ii) an overload policy list including programmable overload reaction policies for each of the processing nodes, in which the overload reaction policies control overload conditions of the processing nodes based on the real-time loading factor information; and (iii) a load distributor configured to select one of the processing nodes to process one of the signaling messages based on the real-time loading factor information and the overload reaction policies.

Apparatus and method for real-time overload control in a distributed call-processing environment

For use in a telecommunication node, a scalable call-processing system is provided to process signaling messages in a distributed processing environment. The call-processing system includes: (i) processing nodes operable to process signaling messages, each of the processing nodes configured to monitor a respective loading factor and produce respective real-time loading information; (ii) resource server nodes operable to provide resources to the processing nodes, each of the resource server nodes configured to monitor a respective loading factor and produce respective real-time loading information; and a load-sharing manager connected to receive the real-time loading information from each of the processing nodes and each of the resource server nodes, the load-sharing manager further connected to receive the signaling messages and distribute the signaling messages to the processing nodes for processing using the resource server nodes based on load-sharing rules generated using programmable policies and the real-time loading information.

Apparatus and method for scalable call-processing system

For use in a mobile telecommunications network comprising a mobile switching center, a plurality of subscribers, and a plurality of processing elements within a processing element unit, a system and method is disclosed for providing a distributed processing element unit that is capable of quickly and efficiently accessing each processing element by using a temporary subscriber identification number that contains embedded address information for the processing element. Subscriber records and application software programs are located within the processing elements to avoid having to send message traffic over the network requesting such information and to avoid the use of a centralized database server. In one advantageous embodiment of the invention, the processing element unit is a visitor location register.

System and method for providing a distributed processing element unit in a mobile telecommunications network

A wireless communication system constructed according to the present invention assigns each serviced mobile unit to a serving mobile switching center to minimize mobility management overhead and to equalize loading among a plurality of mobile switching centers. The wireless communication system includes the plurality of mobile switching centers and a base station system which includes a plurality of base station controllers, each of which couples to a plurality of base stations. A plurality of mobile units served by the system are assigned to the mobile switching centers so that loading is equalized. In one particular construction of the wireless communication system, a dispatching switch couples the base station system to the plurality of mobile switching centers and performs the assignments of the mobile units. In an example of operation, upon attachment of a mobile unit, the dispatching switch determines loading of each of the mobile switching centers. Then, based upon the loading, the dispatching switch assigns the mobile unit to one of the mobile switching centers, the &ldquo;serving&rdquo; mobile switching center.

Distributed signaling message routing in a scalable wireless communication system

A wireless communication system constructed according to the present invention assigns each serviced mobile unit to a serving mobile switching center to minimize mobility management overhead and to equalize loading among a plurality of mobile switching centers. The wireless communication system includes the plurality of mobile switching centers and a base station system which includes a plurality of base station controllers, each of which couples to a plurality of base stations. A plurality of mobile units served by the system are assigned to the mobile switching centers so that loading is equalized. In one particular construction of the wireless communication system, a dispatching switch couples the base station system to the plurality of mobile switching centers and performs the assignments of the mobile units. In an example of operation, upon attachment of a mobile unit, the dispatching switch determines loading of each of the mobile switching centers. Then, based upon the loading, the dispatching switch assigns the mobile unit to one of the mobile switching centers, the 'serving' mobile switching center. During subsequent calls, the dispatching switch establishes a transparent path between a base station controller servicing the call and the serving mobile switching center. Thus, once the serving mobile switching center is determined, operation is transparent to the serving base station controller and the serving mobile switching center. In another particular construction, each of the base station controllers couple to each of the mobile switching centers via a network. In such case, each of the base station controllers and each of the mobile switching centers includes additional equipment which performs at least a portion of the operations of the dispatching switch. The network may be dissimilar to a conventional data structure supported by the wireless communication system. In still another implementation, a signaling message router function routes signaling messages to the serving mobile switching center by using the mobile unit's temporary identification number (as assigned by the serving mobile switching center). The signaling message router function may be implemented in the network coupling the base station sub-system with the mobile switching center (in a message router), in the base station controller or in the mobile switching center.

Distributed signaling message routing in a scalable wireless

A wireless communication system includes at least one mobile switching center ('MSC'), at least one base station coupled to each MSC, a visitor location register ('VLR') and a visitor location register manager ('VLRM'). Each MSC couples to at least one base system controller ('BSC') which couples to at least one base transceiver station ('BTS'). Each BTS provides wireless communication within at least one respective cell, each of the plurality of mobile terminals communicating through a corresponding BTS, BSC and MSC when resident within a cell. The VLR corresponds to one of the MSCs and stores subscriber information for mobile terminals that are active in corresponding cells. The VLRM downloads, from a home location register, subscriber information for mobile terminals becoming active within one of a plurality of cells corresponding to the VLR and stores the subscriber information as a VLR record in the VLR. In accordance with the present invention, the VLRM selectively retains VLR records when corresponding mobile terminals becomes inactive within the cells corresponding to the VLR. The VLRM organizes the VLR records based upon a selected priority. In one embodiment, the VLR is organized as a linked list based upon the priority of VLR records. Stored on the basis of priority, the VLRM may delete VLR records on the same priority basis. In one embodiment of the present invention, a selected priority relates to the time stamp of last activity within any cell respective to the VLR.

Growing community of inventors

Richardson, TX, United States of America

Nhut Nguyen