Codec-specific radio link adaptation

A system comprising:

• a processor;
• memory storing computer-executable instructions that, when executed by the processor, cause the processor to perform operations comprising:
• receiving, from a mobile device, a bitstream carrying speech data as part of a communication session;
• determining, based at least in part on a result of inspecting packets of the bitstream or a notification message from an Internet Protocol (IP) Multimedia Subsystem (IMS) core, that the bitstream is associated with a codec that provides improved performance of the mobile device as compared to legacy codecs in similar radio conditions;
• and
• adapting a radio link for the communication session according to the codec.

A computer-implemented method comprising:

• receiving, from a mobile device, a bitstream carrying speech data as part of a communication session over an Internet Protocol (IP) Multimedia Subsystem (IMS) core;
• receiving, from the IMS core, a notification message, the notification message including an identifier associated with the mobile device and a codec that provides improved performance of the mobile device as compared to legacy codecs in similar radio conditions;
• determining, based at least in part on the notification message, that the bitstream is associated with the codec;
• and
• adapting a radio link for the communication session according to the codec.