Abstract: The method includes: performing a packet scheduling for a plurality of user terminals (UEs) based on information regarding QoS classes, the information regarding QoS classes is included in QoS class identifiers received from an Evolved Packet Core providing communication services to the user terminals. The method further includes receiving channel quality indicators from the plurality of user terminals and performing the scheduling also on the basis of the received channel quality indicators. The system of the invention is arranged to implement the method of the invention.

Abstract: The method includes: performing a packet scheduling for a plurality of user terminals (UEs) based on information regarding QoS classes, the information regarding QoS classes is included in QoS class identifiers received from an Evolved Packet Core providing communication services to the user terminals. The method further includes receiving channel quality indicators from the plurality of user terminals and performing the scheduling also on the basis of the received channel quality indicators. The system of the invention is arranged to implement the method of the invention.

Abstract: A method, system and transmitting side protocol entity is disclosed for sending packet data units for unacknowledged mode services in a mobile communication network. A retransmission parameter is set to a desired value in order to prevent retransmission of packet data units in a handover situation. The transmitting side acknowledged mode radio link control entity purges from the retransmission buffer based on status reports from a user equipment. The packet data units that have been acknowledged by user equipment. A status report includes the sequence number of the highest packet data unit expected by the user equipment, and therefore the status report indicates the sequence number of the radio link control packet data units that have been received at the user equipment (either correctly or incorrectly). All the remaining packet data units in the retransmission buffer are scheduled for transmission and transmitted to the new node.

Abstract: The present invention relates to a method and system for scheduling data packets in a base station device of an access network. An information indicating a retransmission status of a data packet is provided to the base station device, and a scheduling priority is allocated to the data packet based on the retransmission status information. Thereby, retransmission packets can be scheduled earlier and round trip times can be reduced, so as to decrease the risk of timeouts and stalling and to loosen buffer requirements.

Abstract: According to the present invention the use of a delayed acknowledgment procedure of TCP in a communication network system arranged to transport TCP/IP packets is controlled. A burstiness of received TCP packets transmitted in the communication network system from an entity to a device is monitored and it is decided whether the monitored burstiness meets a predefined condition. On the basis of the decision result the delayed acknowledgment procedure is enabled or disabled.

Abstract: A method, system and transmitting side protocol entity is disclosed for sending packet data units for unacknowledged mode services in a mobile communication network. A retransmission parameter is set to a desired value in order to prevent retransmission of packet data units in a handover situation. The transmitting side acknowledged mode radio link control entity purges from the retransmission buffer based on status reports from a user equipment The packet data units that have been acknowledged by user equipment. A status report includes the sequence number of the highest packet data unit expected by the user equipment, and therefore the status report indicates the sequence number of the radio link control packet data units that have been received at the user equipment (either correctly or incorrectly). All the remaining packet data units in the retransmission buffer are scheduled for transmission and transmitted to the new node.

Abstract: According to the present invention the use of a delayed acknowledgment procedure of TCP in a communication network system arranged to transport TCP/IP packets is controlled. A burstiness of received TCP packets transmitted in the communication network system from an entity to a device is monitored and it is decided whether the monitored burstiness meets a predefined condition. On the basis of the decision result the delayed acknowledgment procedure is enabled or disabled.

Abstract: The present invention relates to a method and system for scheduling data packets in a base station device of an access network. An information indicating a re-transmission status of a data packet is provided to the base station device, and a scheduling priority is allocated to the data packet based on the retransmission status information. Thereby, retransmission packets can be scheduled earlier and round trip times can be reduced, so as to decrease the risk of timeouts and stalling and to loosen buffer requirements.

Abstract: The present invention relates to mobile telecommunication systems. The present invention overcomes the problem of unnecessary retransmissions over the air interface. These transmissions waste the capacity of the air interface. In a preferred embodiment, a Discarding TCP Packets (DTCPP) entity is added to the PDCP layer. The DTCPP entity has the knowledge of the correspondence between the PDCP sequence numbering and the TCP segments sequence numbering correspondence. Further, the DTCPP entity has the knowledge of which TCP segments have been successfully received by the TCP-UE. This knowledge can be gained reading the TCP acknowledgements at the UL PDCP, where the sequence number of the correctly received byte is stated. The present invention describes a method and system for avoiding multiple transmissions of the same TCP segment.