Delay-aware resource sharing

A control entity configured to control an operation of a transmission buffer provided in a transmission node transmitting data packets of a data packet flow, wherein each data packet comprises a delay value indicating a transmission delay requirement of the data packet and a packet value indicating a level of importance of the data packet, wherein the transmission buffer comprises different buffer regions provided for inserting newly arriving data packets having different delay requirements, wherein each buffer region stores the newly arriving data packets having a predefined range of relay requirements the control entity comprising a memory and at least one processing unit, the memory containing instructions executable by said at least one processing unit, wherein the control entity is operative to:

• detect an arrival of a first data packet to be added to the transmission buffer,
• determine the delay value and the packet value of the first data packet,
• determine the buffer region of the transmission buffer into which the first data packet is to be inserted in dependence on the delay value of the first data packet,
• determine whether a second data packet is present in one of the buffer regions having a lower delay requirement so that the second data packet will be transmitted after the first data packet, wherein in the affirmative,
• determine a waiting data size of candidate data packets which are located in the transmission buffer such that they are waiting for transmission before the second data packet,
• determine a size of the first data packet
• determine at least one third data packet among the candidate data packets to be dropped in response to the added first data packet, wherein the at least one third data packet is determined taking into account the packet values of the candidate data packets such that the waiting data size does not increase,
• drop the at least one third data packet,
• add the first data packet to the determined buffer region.

A control entity configured to control an operation of a transmission buffer provided in a transmission node transmitting data packets of a data packet flow, wherein each data packet comprises a delay value indicating a transmission delay requirement of the data packet and a packet value indicating a level of importance of the data packet, wherein the transmission buffer comprises different buffer regions provided for inserting newly arriving data packets having different delay requirements, wherein each buffer region stores the newly arriving data packets having a predefined range of relay requirements the control entity comprising a memory and at least one processing unit, the memory containing instructions executable by said at least one processing unit, wherein the control entity is operative to:

• detect an arrival of a first data packet to be added to the transmission buffer,
• determine the delay value and the packet value of the first data packet,
• determine the buffer region of the transmission buffer into which the first data packet is to be inserted in dependence on the delay value of the first data packet,
• determine whether a second data packet is present in one of the buffer regions having a lower delay requirement so that the second data packet will be transmitted after the first data packet, wherein in the affirmative,
• determine a waiting data size of candidate data packets which are located in the transmission buffer such that they are waiting for transmission before the second data packet,
• determine a size of the first data packet
• determine at least one third data packet among the candidate data packets to be dropped in response to the added first data packet, wherein the at least one third data packet is determined taking into account the packet values of the candidate data packets such that the waiting data size does not increase,
• drop the at least one third data packet,
• add the first data packet to the determined buffer region, further being operative to implement each buffer region in one buffer, and to transmit the data packets from the buffer region with the lower delay requirement to the buffer region with the higher delay requirement and to transmit the data packets to the other node from the buffer region with highest delay requirement.

A control entity configured to control an operation of a transmission buffer provided in a transmission node transmitting data packets of a data packet flow, wherein each data packet comprises a delay value indicating a transmission delay requirement of the data packet and a packet value indicating a level of importance of the data packet, wherein the transmission buffer comprises different buffer regions provided for inserting newly arriving data packets having different delay requirements, wherein each buffer region stores the newly arriving data packets having a predefined range of relay requirements the control entity comprising a memory and at least one processing unit, the memory containing instructions executable by said at least one processing unit, wherein the control entity is operative to:

• detect an arrival of a first data packet to be added to the transmission buffer,
• determine the delay value and the packet value of the first data packet,
• determine the buffer region of the transmission buffer into which the first data packet is to be inserted in dependence on the delay value of the first data packet,
• determine whether a second data packet is present in one of the buffer regions having a lower delay requirement so that the second data packet will be transmitted after the first data packet, wherein in the affirmative,
• determine a waiting data size of candidate data packets which are located in the transmission buffer such that they are waiting for transmission before the second data packet,
• determine a size of the first data packet
• determine at least one third data packet among the candidate data packets to be dropped in response to the added first data packet, wherein the at least one third data packet is determined taking into account the packet values of the candidate data packets such that the waiting data size does not increase,
• drop the at least one third data packet,
• add the first data packet to the determined buffer region, further being operative to transmit the data packets from the buffer region with the lower delay requirement to the buffer region with the higher delay requirement and to transmit the data packets to the other node from the buffer region with highest delay requirement, wherein if there is a free space in the buffer region with the highest relay requirement, the control entity is operative to fill the free space with data packets from buffer regions having lower delay requirements.