Telefonaktiebolaget Lm Ericsson (publ)

Christer Holmberg

Stefan Håkansson

Johannes Van Elburg

Daniel Lindström

Adam Bergkvist

Fredrik Lindholm

Ari Keränen

Hubert Przybysz

Jan Holm

Gert Öster

Alf Heidermark

Gonzalo Camarillo Gonzalez

Per Ferngren

Hannu Vormisto

Stefan HÅKANSSON

Mats HedensjÖ

Anthony Knight

A sending node is disclosed that is operable to provide a representation of at least one resource, wherein the resource comprises a sensor measurement, and wherein the representation is operable for transmission using an Internet of Things (IoT) transfer Protocol. The sending node comprises processing circuitry configured to generate () a representation of the resource according to a data model, generate () a Real-time Transport Protocol (RTP) data packet, wherein the RTP data packet comprises the generated representation of the resource, and send () the generated RTP packet to a receiving node. Also disclosed are a receiving node and an intermediate node.

Devices and methods for provision of resource representations

A server (), a client device () and methods therein, for handling cached content resources. When the client device () sends a download request () in a downloading session, the server () identifies () at least one content resource deemed to be potentially needed later in the downloading session. The server () then sends a cache map to the client device () in a response to the download request. The cache map comprises a pre-fetch indication indicating that the identified at least one content resource should be pre-fetched by the client device () from a cache () containing the identified at least one content resource. Thereby, the client device is able to pre-fetch () the content resources before the performance of communication may become reduced so that communication with the cache () is difficult or even impossible, e.g. due to deteriorated radio conditions or congestion in the communication network.

Server, client device and methods therein for handling

A server (), a client device () and methods therein, for handling cached content resources. When receiving () a request from the client device () in a downloading session, the server () identifies () a set of caches () that can be accessed by the client device (). The server () then sends () a cache map to the client device () indicating that a first content resource is stored in a first cache () of the identified set of caches and a second content resource is stored in a second cache () of the identified set of caches. Thereby, the server () is able to adapt the cache map depending on which caches can be accessed by the client device (), to ensure that the client device () can retrieve the content resources in an efficient manner.

Server, client device and methods therein for handling cached content resources

A method of managing a media path for a media session established between users across a plurality of interconnected Internet Protocol (IP) networks which utilize Session Initiation Protocol (SIP) and Session Description Protocol (SDP) signaling. The method comprises, at session establishment via a signaling path over the IP networks, making a determination that a shortcut media path is available, wherein the shortcut media path deviates from the signaling path. The method further comprises making a further determination that nodes in the signaling path will subsequently be able to maintain the shortcut media path in the event of a subsequent session update or re-invite and, at a subsequent session update or re-invite, including within update or re-invite signaling an indication that the shortcut media path is to be maintained.

Maintaining optimal media routing

A method and apparatus for handling a Session Initiation Protocol message in a communications network. When a network node receives a Session Initiation Protocol message, which comprises Request-URI header, the node rewrites the Request-URI header in the SIP message, and adds information to the SIP message useable by a remote node to determine the current target address of the message. The SIP message is then sent to a further node. In this way, the remote node that receives the message can determine the current target in the SIP message, even if the target has been re-written in the Request-URI as the result of, for example, a translation or re-routing operation.

Message handling in a communications network

A method of sending information from a Session Initiation Protocol intermediate node to a first Session Initiation Protocol terminal. The method comprises, upon receipt of a session initiation request at the Session Initiation Protocol intermediate node, establishing a first Session Initiation Protocol dialog between the Session Initiation Protocol intermediate node and the first Session Initiation Protocol terminal, sending information over said first dialog, forwarding said request from the Session Initiation Protocol intermediate node to a second, destination Session Initiation Protocol terminal, before, during, or after establishment of said first dialog, and establishing a second Session Initiation Protocol dialog, between the first and second Session Initiation Protocol terminals.

Facilitating early media in a communications system

A method and apparatus for establishing a communication session in an IMS Centralized Services communication network. A Service Centralization and Continuity Application Server (SCC AS) receives a request from an originating device to establish a session with a target device. The request includes a plurality of codec identifiers that could be used by the originating device. The SCC AS sends a second request to establish the session to the target device. The SCC AS subsequently receives, from an intermediate node between the SCC AS and the target device, an invite message. The invite message includes an indication that a codec identifier has been selected from the plurality of codec identifiers. The SCC AS then sends a message to the intermediate node instructing the intermediate node to establish the session.

Growing community of inventors

Kirkkonummi, Finland

Christer Holmberg