Telefonaktiebolaget Lm Ericsson (Publ)

Ákos Kovacs

András Rácz

István Gódor

Franz Kalleitner

István Godor

In an Evolved Universal Terrestrial Radio Access Network (E-UTRAN) system Multimedia Broadcast Multicast Service (MBMS) data is transmitted as layered data together with control information comprising information enabling a User Equipment to reconstruct the layered MBMS data.

Method of transmitting MBMS data in an E-UTRAN-system

A method is disclosed for use in a packet switched network, comprising carrying descriptor information relating to options for stream adaptation, for example media stream adaptation, in the packet switched network using at least one of the Next Step in Signalling, NSIS, and Resource Reservation Protocol, RSVP, signalling protocols. Carrying the descriptor information may comprise receiving (S), processing (S), generating (S), distributing (S), transmitting (S) or using the descriptor information in any way. The method aims to provide a generally applicable solution for cross-layer information forwarding, with one realization of the general solution using the Layer Independent Descriptor as the forwarded information. Specific NSIS and RSVP object formats are also proposed.

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Budapest, Hungary

Ákos Kovacs