Transmitting radio node, a receiving radio node, and methods therein for handling data packets within a radio bearer

A method in a receiving radio node for handling data packets within a radio bearer in a radio communications network, the method comprising:

• receiving, from a transmitting radio node, a data packet within a radio bearer;
• identifying a logical sub-channel within the radio bearer using an identity in the data packet, and wherein the data packet has a sequence number related to the logical sub-channel, where the identity is indicating the logical sub-channel of a respective traffic flow of at least two identified packet flows carried within a Radio Link Control (RLC) entity;
• handling the data packet of the logical sub-channel using the identity and in accordance with the sequence number;
• setting up a logical sub-channel for data to be transmitted in a reverse direction of a direction of the received data packets, which set up logical sub-channel corresponds to the logical sub-channel indicated by the identity of the identified data packets;
• and
• removing the logical sub-channel for data to be transmitted in the reverse direction when a given period of time has passed in which no data packets with a service quality requirement of the at least one packet flow has been communicated.

A transmitting radio node for handling data packets within a radio bearer in a radio communications network, comprising:

• a configuring circuit configured to set up, within a radio bearer, a logical sub-channel for each of at least two identified packet flows;
• an associating circuit configured to associate an identity to each data packet of respective identified packet flow, of the at least two identified packet flows, carried within a Radio Link Control (RLC) entity, where the identity is indicating the logical sub-channel of the respective identified traffic flow;
• a transferring circuit configured to transfer the data packets of respective identified packet flow in an order over a channel in the radio communications network (1), where the order of transferring is based on the identity of each data packet;
• and
• removing the logical sub-channel for at least one packet flow out of the identified packet flows when a given period of time has passed in which no data packets with a service quality requirement of the at least one packet flow has been communicated.

A receiving radio node for handling data packets within a radio bearer in a radio communications network, comprising:

• a receiving circuit configured to receive, from a transmitting radio node, a data packet within a radio bearer;
• an identifying circuit configured to identify a logical sub-channel within the radio bearer using an identity in the data packet, and wherein the data packet has a sequence number related to the logical sub-channel, wherein the identity is indicating the logical sub-channel of a respective traffic flow of at least two identified packet flows carried within a Radio Link Control (RLC) entity;
• a handling circuit configured to handle the data packet of the logical sub-channel using the identity and in accordance with the sequence number:
• setting up a logical sub-channel for data to be transmitted in a reverse direction of a direction of the received data packets, which set up logical sub-channel corresponds to the logical sub-channel indicated by the identity of the identified data packets;
• and
• removing the logical sub-channel for data to be transmitted in the reverse direction when a given period of time has passed in which no data packets with a service quality requirement of the at least one packet flow has been communicated.