Nokia Corporation

Other

Nokia Telecommunications Oy

Intellectual Ventures I LLC

Nokia Technologies Oy

Pekka Pessi

Marko Juhani Suoknuuti

Vilho I Räisänen

Martti Mela

Heikki Juhani Einola

Stephane Coulombe

Jari Selin

Juha Matti Pirkola

Tero Koskivirta

Aki Petteri Mikkonen

Jukka-Pekka Saunamäki

A method for providing a session invitation protocol (SIP) session between a first and a second entity. An SIP session is established between the first and second entity. At least one media stream is transmitted from the first entity to the second entity. At least one of transmission, storage and play back of the at least one media stream is controlled in the SIP session at the first and/or second entity.

Streaming media

There is disclosed an interface block for providing application access to the underlying protocol engine at several different layers. These layers are preferably the application core layer, the transaction layer, and the transport layer.

Protocol engine application interface

An improved application programming interface (API) as described can control media resources in numerous Internet multimedia applications. The API may be independent of the application itself and the media resources underneath. The API may be referred to as a multimedia subsystem (MSS) interface.

Multimedia application interface

A method for compressing a signalling message in a communication system. The method comprising the steps of: receiving a part of the signalling message; detecting in a memory a copy of the part of the signalling message; comparing the length of the detected part against a stored length value; and dependent on the output of the comparison step performing a step of storing the detected part of the signalling message in the memory.

Signal message compression

The invention relates to a method for managing Quality of Service (QoS) in a packet network (). The method comprises feeding a predetermined information flow into the packet network. () for measurement purposes and measuring the characteristics of said information flow by means of a continual measurement for producing QoS information. Said Qos information is used to control communications traffic in the packet network () in order to manage the Quality of Service (QoS) of the packet network (). The invention further relates to a system for managing Quality of Service (QoS) in the packet network ().

Method and system for managing quality of service by feeding information into the packet network

A method for providing a session invitation protocol (SIP) session between a first and a second entity. An SIP session is established between the first and second entity. At least one media stream is transmitted from the first entity to the second entity. At least one of transmission, storage and play back of the at least one media stream, is controlled in the SIP session at the first and/or second entity.

A system and method for conveying content-specific characteristics related to terminal capabilities and user preferences, and adapting content for particular terminals in response to the conveyed information. A content type or other message characteristic that is recognizable by the terminal is identified, as are operational confines of the terminal by which the content type is to comply. The content type is associated with the operational confines of the terminal. The content type and associated operational confines are provided to the network server for use by the network server in delivering messages to the terminal as dictated by the operational confines.

System and method for conveying terminal capability and user preferences-dependent content characteristics for content adaptation

A method for decompressing a signalling message in a communications device in a communication system comprising the steps of receiving a virtual machine bytecode block for carrying out decompression on the signalling message; detecting in at least one part of the virtual machine bytecode block at least one predefined code block, matching the virtual machine bytecode block comprising at least one detected code blocks against a bytecode reference block comprising a reference to at least one instruction set; selecting the at least one instruction set on the basis on the matching step; and performing the selected at least one instruction set.

Signal message decompressor

A method for compressing a signalling message in a compressor in a communication system. The compressor comprising a compression memory, wherein the compression memory comprises a first memory in a virtual machine and a second memory external to the virtual machine. The method comprising the steps of: receiving a part of the signalling message; searching the second memory for a copy of the received part of the signalling message; and determining a reference to the received part of the signalling message on the basis of the searching step; outputting the reference as a part of the compressed signalling message representing the received part of the signalling message.

A method, device, system, and a computer program product where compressed control and user-plane messages are multiplexed. The multiplexing of such messages involves distinguishing between control messages and user-plane messages using an identifier accompanying the control messages. The identifier signals an intermediate relay that a particular message is a control message and should be decompressed and processed.

Multiplexing of compressed control and user-plane messages

According to an embodiment of the present invention, a system is provided that includes a cellular network, a Public Switched Telephone Network (PSTN) and a mobile IP-telephony network (MIPTN). Both the cellular network and the MIPTN include a Home Function and one or more visited Functions. MIPTN subscribers can roam within the MIPTN. Also, a Gateway Function interfaces the PSTN and the MIPTN to allow roaming between the cellular network and the MIPTN. The Gateway Function performs a dynamic mapping function between PSTN/cellular addresses (e.g., in E.164 format) and MIPTN addresses (e.g., IP addresses) to allow registration and call delivery for subscribers roaming between the cellular network and the MIPTN. A similar type of Gateway Function also allows Short Message Service (SMS) messages to be delivered over the MIPTN as well.

Mobility within a packet-switched telephony network

The object of the invention is a method for emulating the two-way information flow of a real application in a system, which comprises a first network element () and a second network element (), as well as a packet network () between said first network element and said second network element. The method comprises transmitting a set of packets from the first network element () through the packet network () to the second network element (). At the second network element, at least part of the transmitted packets are received. In a return transmission, a packet arrived at the second network element is transmitted back to the first network element only after a selected delay from the receiving of the packet at the second network element. The object of the invention is also a system, a network element and a computer program product implementing the method.

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Helsinki, Finland

Pekka Pessi