摘要:
A mobile node that is in communication with a correspondent node via a home agent initiates a process for establishing a route optimized mode of communication between the mobile node and the correspondent node. The mobile node sends a first initiating message to the home agent for delivery to the correspondent node and sends a second initiating message directly to the correspondent node. The mobile node secures the first initiating message by including an initiating-message authentication code that can be validated by the home agent or by an authentication server. The correspondent node responds by sending a first responsive message to the home agent for delivery to the mobile node and by sending a second responsive message directly to the mobile node. The home agent secures the first responsive message by adding a responsive-message authentication code that can be validated by the mobile node.
摘要:
A mobile node using Mobile IP is served by a network access server (NAS), wherein the NAS has allocated a care-of address for the mobile node and a home agent has a mobility binding that associates the care-of address with the mobile node's home address. When the mobile node's care-of address is no longer valid, an intermediary server receives a notification messages from a first network element (e.g., the NAS or home agent) and sends a resource management message to a second network element (e.g., the home agent or NAS). In response to the resource management message, the second network element clears at least one resource associated with the mobile node. For example, the NAS may de-allocate the care-of address and the home agent may clear the mobility binding.
摘要:
A media service controller controls how one or more base stations transmit media content from one or more media servers to mobile stations. The media service controller may control whether a mobile station receives media content via a unicast or a multicast connection, e.g., based on a predefined schedule and/or on whether other mobile stations served by the same base station are receiving the same media content. The media service controller may provide a content discovery service through which a first media server may determine whether other media servers are providing the same media content. The media service controller may facilitate changing a source of media content received by a mobile station, e.g., by changing the source from a first media server to a second media server when the mobile station moves from an area associated with the first media server to an area associated with the second media server.
摘要:
A media service controller controls how one or more base stations transmit media content from one or more media servers to mobile stations. The media service controller may control whether a mobile station receives media content via a unicast or a multicast connection, e.g., based on a predefined schedule and/or on whether other mobile stations served by the same base station are receiving the same media content. The media service controller may provide a content discovery service through which a first media server may determine whether other media servers are providing the same media content. The media service controller may facilitate changing a source of media content received by a mobile station, e.g., by changing the source from a first media server to a second media server when the mobile station moves from an area associated with the first media server to an area associated with the second media server.
摘要:
A visited access gateway provides an emergency communication service to a visiting mobile unit. The visiting mobile unit transfers a user registration to a home communication network, and the home communication network transfers a home internet protocol address to the visiting mobile unit. Upon receiving an emergency call request having the home internet protocol address from the visiting mobile unit, the access gateway transfers the emergency call request having the home internet protocol address over a signaling tunnel from the visiting mobile unit to a visited call processing system, receives routing instructions from the visited call processing system, and exchanges emergency communications having the home internet protocol address over a bearer tunnel between the visiting mobile unit and a visited emergency service node.
摘要:
A media service controller controls how one or more base stations transmit media content from one or more media servers to mobile stations. The media service controller may control whether a mobile station receives media content via a unicast or a multicast connection, e.g., based on a predefined schedule and/or on whether other mobile stations served by the same base station are receiving the same media content. The media service controller may provide a content discovery service through which a first media server may determine whether other media servers are providing the same media content. The media service controller may facilitate changing a source of media content received by a mobile station, e.g., by changing the source from a first media server to a second media server when the mobile station moves from an area associated with the first media server to an area associated with the second media server.
摘要:
A media service controller controls how one or more base stations transmit media content from one or more media servers to mobile stations. The media service controller may control whether a mobile station receives media content via a unicast or a multicast connection, e.g., based on a predefined schedule and/or on whether other mobile stations served by the same base station are receiving the same media content. The media service controller may provide a content discovery service through which a first media server may determine whether other media servers are providing the same media content. The media service controller may facilitate changing a source of media content received by a mobile station, e.g., by changing the source from a first media server to a second media server when the mobile station moves from an area associated with the first media server to an area associated with the second media server.
摘要:
A method of assigning a single packet address to a wireless communication device in a communication system comprising a first wireless network and a second wireless network comprises, in the wireless communication device, transferring a first network service request to a router in the first wireless network, wherein the first network service request includes a first network user identifier; in the router, transferring an authorization request to an authorization system, wherein the authorization request includes the first network user identifier; in the authorization system, determining whether the wireless communication device associated with the first network user identifier comprises dual-mode functionality, and determining whether a session for the second wireless network exists based on the first network user identifier; and in the router, transferring a first network service response to the wireless communication device, wherein the first network service response includes a packet address for the second wireless network.
摘要:
In a packet communication system, a PCRF processes communication policy data to generate a communication policy instruction and a user notice. The PCRF transfers the communication policy instruction for delivery to a packet gateway system. The PCRF transfers the user notice for delivery to an ANDSF. The ANDSF processes the user notice to generate and transfer a data file for delivery to a user communication device that displays the user notice based on the data file. The packet gateway system processes the communication policy instruction to filter packets exchanged with the user communication device.
摘要:
An IP multimedia subsystem comprises a CSCF and an HSS. The CSCF is configured to receive a SIP registration message transferred by a user communication device and responsively transfer a registration request to the HSS. The HSS is configured to process the registration request to obtain IFC for the user communication device, wherein the IFC comprises processing instructions that direct the CSCF to perform an operation to dynamically obtain and load data into the IFC. The CSCF is configured to receive a SIP invite message transferred by the user communication device, process text from the SIP invite message against a set of keywords to determine a dynamic parameter based on a keyword match, process one of the processing instructions in the IFC to obtain and load the dynamic parameter into the IFC, process the IFC with the dynamic parameter to determine a communication session parameter, and transfer a SIP message with the communication session parameter responsive to the SIP invite message.