A congestion control mechanism for TCP communication sessions is described. The congestion control mechanism adjusts the size of the congestion window based on a number of parallel virtual TCP Hybla connections. The number of parallel virtual TCP Hybla connections used to determine the congestion window can be dynamically adjusted. The enhanced TCP Hybla congestion control mechanism provides improved throughput for heterogenous networks having a high latency link and having possible packet loss.

A congestion control mechanism for TCP communication sessions is described. The congestion control mechanism adjusts the size of the congestion window based on a number of parallel virtual TCP Hybla connections. The number of parallel virtual TCP Hybla connections used to determine the congestion window can be dynamically adjusted. The enhanced TCP Hybla congestion control mechanism provides improved throughput for heterogenous networks having a high latency link and having possible packet loss.

The present disclosure provides a method for forwarding to a Transport Control Protocol (TCP) receiver a TCP transmission sent from a TCP sender. The method includes: determining Time Division Duplex (TDD) reconfiguration time required for a TDD reconfiguration; comparing the TDD reconfiguration time with a predetermined threshold; suspending the forwarding of the TCP transmission to the TCP receiver during the TDD reconfiguration time if the TDD reconfiguration time is larger than the predetermined threshold; and resuming the suspended forwarding of the TCP transmission after the TDD reconfiguration time has lapsed. The present disclosure also provides a method for transmitting a TCP transmission to a TCP receiver, a base station and a user equipment.

The present disclosure mainly relates to improvements for the buffer status reporting and the logical channel prioritization procedures performed in the UE, in scenarios where the UE is in dual connectivity and the PDCP layer of the UE is shared in the uplink for MeNB and SeNB. According to the present disclosure, a ratio is introduced according to which the buffer values for the PDCP are split in the UE between the SeNB and the MeNB according to said ratio.

A communication device includes, a controller that executes control to receive a data transmission packet from another communication device, create a reception confirmation packet indicating reception of the data transmission packet, and store the created reception confirmation packet in a transmission buffer, and a transmitter that transmits a part of reception confirmation packets stored in the transmission buffer to the other communication device but does not transmit reception confirmation packets other than the transmitted reception confirmation packet to the other communication device.

A communication device includes, a controller that executes control to receive a data transmission packet from another communication device, create a reception confirmation packet indicating reception of the data transmission packet, and store the created reception confirmation packet in a transmission buffer, and a transmitter that transmits a part of reception confirmation packets stored in the transmission buffer to the other communication device but does not transmit reception confirmation packets other than the transmitted reception confirmation packet to the other communication device.

A device may utilize a point-to-point protocol over Ethernet (PPPoE) and a point-to-point protocol (PPP) to register the device with a core network, and may establish a first packet data unit (PDU) session with the core network based on the PPPoE and the PPP. The device may configure the first PDU session, based on the PPPoE and the PPP, to provide a first service, and may generate first keep alive messages to maintain the first PDU session. The device may establish a second PDU session with the core network based on the PPPoE and the PPP, and may configure the second PDU session based on the PPPoE and the PPP, where the second PDU session is configured to provide a second service that is different than the first service. The device may generate second keep alive messages to maintain the second PDU session.

A device may utilize a point-to-point protocol over Ethernet (PPPoE) and a point-to-point protocol (PPP) to register the device with a core network, and may establish a first packet data unit (PDU) session with the core network based on the PPPoE and the PPP. The device may configure the first PDU session, based on the PPPoE and the PPP, to provide a first service, and may generate first keep alive messages to maintain the first PDU session. The device may establish a second PDU session with the core network based on the PPPoE and the PPP, and may configure the second PDU session based on the PPPoE and the PPP, where the second PDU session is configured to provide a second service that is different than the first service. The device may generate second keep alive messages to maintain the second PDU session.

Provided are a data transmission method, the method comprises transmitting data from a data transmission apparatus to a data reception apparatus, selecting time difference retransmission target data from the data according to a preset rule by using the data transmission apparatus, determining a retransmission time interval according to characteristics of the time difference retransmission target data by using the data transmission apparatus, determining whether time difference retransmission is possible based on the state of a network when the retransmission time interval arrives by using the data transmission apparatus and retransmitting the time difference retransmission target data to the data reception apparatus when determining that the time difference retransmission is possible by using the data transmission apparatus.

A first network node, for supporting transport of data in a wireless communication network. One or more first data transmission connections, for first data flows, are established between the first network node and one or more service providing entities. One or more second data transmission connections, for second data flows associated with the first data flows, are established between the first network node and one or more wireless terminals via a target node. The first network node obtains a buffer measure that is indicative of a buffering degree at the target node for a first group of the second data flows. The first network node controls, based on the obtained buffer measure, a transmission pace between the first network node and the target node for a second group of the second data flows.