Radio bearer switching in radio access

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least:
• perform a communication comprising transmitting packets of a first traffic flow and packets of a second traffic flow via a first radio bearer from a first device to a second device;
• detect that further packets of the second traffic flow are to be transmitted via a second radio bearer to the second device;
• and
• based on the detecting, transmit a packet data unit via the first radio bearer from the first device to the second device, wherein the packet data unit comprises an indication of a switch of the second traffic flow to the second radio bearer, and wherein packets of the first traffic flow continue to be transmitted via the first radio bearer.

An apparatus comprising:

• at least one processor;
• and
• at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least:
• receive from a first device a communication comprising packets of a first traffic flow and packets of a second traffic flow via a first radio bearer;
• receive from the first device a packet data unit comprising an indication that further packets of the second traffic flow are to be received via a second radio bearer, wherein the first traffic flow continues to be received via the first radio bearer;
• establish the second radio bearer between the apparatus and the first device;
• and
• based on the establishing, receive the further packets of the second traffic flow via the second radio bearer.

A non-transitory computer readable medium comprising program instructions for causing a first device to perform at least the following:

• performing a communication comprising transmitting packets of a first traffic flow and packets of a second traffic flow via a first radio bearer to a second device;
• detecting that further packets of the second traffic flow are to be transmitted via a second radio bearer to the second device;
• and
• based on the detecting, transmitting a packet data unit via the first radio bearer to the second device, wherein the packet data unit comprises an indication of a switch of the second traffic flow to the second radio bearer, and wherein packets of the first traffic flow continue to be transmitted via the first radio bearer.