Method and interworking network node for enabling bit rate adaption in media streaming

A network node, comprising:

• processing circuitry;
• memory containing instructions executable by the processing circuitry whereby the network node is operative to:
• transfer a media stream from a first device to at least a second device, wherein the first device supports bit rate adaptation based on a Temporary Maximum Media Stream Bitrate Request (TMMBR) message and the second device supports bit rate adaptation based on Self-Clocked Rate Adaptation for Multimedia (SCReAM) feedback;
• receive SCReAM feedback from the second device;
• derive at least one rate control message from the SCReAM feedback;
• determine, based on the at least one rate control message, a recommended bit rate to be recommended for use by the first device when encoding the media stream;
• and
• send the TMMBR message to the first device, wherein the TMMBR message indicates the recommended bit rate.

A non-transitory computer readable recording medium storing a computer program product for controlling a network node, the computer program product comprising software instructions which, when run on processing circuitry of the network node, causes the network node to:

• transfer a media stream from a first device to at least a second device, wherein the first device supports bit rate adaptation based on a Temporary Maximum Media Stream Bitrate Request (TMMBR) message and the second device supports bit rate adaptation based on Self-Clocked Rate Adaptation for Multimedia (SCReAM) feedback;
• receive SCReAM feedback from the second device;
• derive at least one rate control message from the SCReAM feedback;
• determine, based on the at least one rate control message, a recommended bit rate to be recommended for use by the first device when encoding the media stream;
• and
• send the TMMBR message to the first device, wherein the TMMBR message indicates the recommended bit rate.