Abstract: Embodiments of the disclosure provide methods, apparatus and machine-readable media relating to transport of data flows over cellular network. One method in a core network node comprises: obtaining configuration information for a data stream in an external data network, the configuration information indicating respective values for one or more fields within a header of data packets associated with the data stream which are to remain static; initiating transmission of the configuration information to a wireless device which is to receive the data stream; receiving a data packet associated with the data stream from the external data network; removing the one or more fields from the data packet to generate a compressed data packet; and initiating transmission of the compressed data packet to the wireless device.

Abstract: A wireless device (14-1) is configured for use in a wireless communication system (10). The wireless device (14-1) is configured to receive a control message (e.g., a downlink control information message (20)) that indicates changes (22-1, 22-2) in uplink frequency-resource allocations (16-1, 16-2) for respective wireless devices (e.g., in a group (24)), including the wireless device (14-1). The wireless device (14-1) is also configured to change the uplink frequency-resource allocation for the wireless device (14-1) in accordance with the control message. In some embodiments, the wireless device (14-1) is also configured to perform uplink transmission using the changed uplink frequency-resource allocation.

Abstract: A network node, a wireless device for communication with a network node and corresponding methods are provided. The network node includes processing circuitry configured to stop a hybrid automatic repeat request (HARQ) process associated with data to be retransmitted and retransmit the data using a procedure that is different from the stopped HARQ process.

Abstract: There is disclosed a method in a first network node operating in a split bearer environment, the first network node being communicatively connected with a second network node via an internode interface. The method comprises obtaining, by the first network node, expected queuing times of packet data convergence protocol (PDCP) packet data units (PDUs) at the first network node and at the second network node. The method comprises determining, by the first network node and according to the estimated expected queuing times, forwarding of a flow of PDCP PDUs destined for a User Equipment (UE).

Abstract: According to an exemplary embodiment a method may be provided to operate a central unit, CU, node that is coupled with first and second distributed unit, DU, nodes. Communication is provided between the CU node and a mobile communication device through the first DU node over a first radio link between the first DU node and the mobile communication device. A message is received from the first DU node informing the CU node that the radio link is temporarily unavailable. Responsive to receiving the message, communication through the first DU node is suspended, wherein configuration of the first DU node to serve the mobile communication device using the first radio link is maintained. While suspending communication through the first DU node, communication may be provided through the second DU node over a second radio link between the second DU node and the mobile communication device.

Abstract: There is provided a method in a node for a wireless communication network. The node is configurable with a plurality of radio carriers for radio transmission between the node and one or more other nodes of the wireless communication network. The plurality of radio carriers comprises at least a first carrier and a second carrier. The node is operable according to a protocol stack comprising at least a first layer and a second layer, wherein the second layer is higher than the first layer. The first layer is responsible for aggregation of the first and second radio carriers, and the second layer is responsible for duplication of data packets for transmission over the first and second carriers. The method comprises determining, at a first entity of the first layer, that the second carrier is activated or deactivated; and sending, from the first entity of the first layer to a first entity of the second layer, an indication of the activation or deactivation of the second carrier.

Abstract: A technique for controlling and monitoring packet duplication of at least one packet in a radio transmission from at least one transmitting station (100) to a receiving station (200) is described. As to a method aspect of the technique, a control message (710) that is indicative of the packet duplication in the radio transmission is transmitted to the receiving station (200). The control message (710) controls the receiving station (200) to monitor a reception of duplicates (712) of the at least one packet. Two or more duplicates (712) of the at least one packet are transmitted to the receiving station (200). A control feedback (714) that is indicative of a result of the monitoring is received from the receiving station (200).

Abstract: According to certain embodiments, a method in a wireless device (110) includes transmitting a protocol data unit (PDU) or segment of a PDU on a first link and transmitting the PDU or the segment of the PDU on a second link. One or more retransmissions of the PDU or the segment of the PDU are scheduled on the second link. A positive acknowledgment is received from a receiver. The positive acknowledgement indicates a successful receipt of the PDU or the segment of the PDU on the first link. In response to receiving the positive acknowledgement, the one or more retransmissions of the PDU or the segment of the PDU on the second link are cancelled.

Abstract: A user equipment starts a first timer and a second timer in response to different respective network events. The starting of the first and second timers causes the first and second timers to simultaneously elapse. In response to one of the simultaneously elapsing timers expiring, the user equipment sends a radio link failure report to a node of a wireless communication network indicating which of the simultaneously elapsing timers expired.

Abstract: Radio network equipment (1700) is configured to implement a radio access network, RAN, central unit (12-C). The radio network equipment (1700) is configured to decide, by the RAN central unit (12-C), which of multiple RAN distributed units (12-D1, 12-D2) is to be responsible for activating duplication of traffic of a radio bearer (16) over multiple paths (16-1, 16-2). Different ones of the RAN distributed units (12-D1, 12-D2) serve different respective ones of the multiple paths (16-1, 16-2). The radio network equipment (1700) is also configured to transmit, from the RAN central unit (12-C), control signalling (20) to each of one or more of the RAN distributed units (12-D1, 12-D2) indicating whether or not the RAN distributed unit is responsible for activating duplication of the traffic of the radio bearer (16) over the multiple paths (16-1, 16-2).

Abstract: Embodiments herein relate to a method performed by a transmitting device (120) for handling communication in a wireless communications network, wherein the transmitting device (120) comprises at least two radio link control, RLC, entities and is configured with a split bearer to a receiving device (100). The transmitting device (120) identifies that a last transmitted protocol data unit, PDU, of one of the at least two RLC entities, is lacking a poll indicator requesting a status of one or more transmitted PDUs. When identifying that the last transmitted PDU lacks the poll indicator, the transmitting device transmits to the receiving device (100), a PDU comprising a poll indicator.

Abstract: A technique for Time-Sensitive Networking, TSN, over a radio access network, RAN, is described. As to a handling method aspect of the technique, system information is received from a radio base station of the RAN. The system information is implicative or indicative of support for TSN through the radio base station. Depending on the received system information, at least one TSN stream of the TSN through the radio base station is established or initiated to establish.

Abstract: A method of receipt status reporting in a communication device (110), comprising configuring (S1) said communication device for periodic receipt status reporting by associating a first status report type with a value of a first reporting periodicity parameter and associating a second status report type with a value of second reporting periodicity parameter, said first status report type being different from said second status report type and said first reporting periodicity parameter being different from said second reporting periodicity parameter, and periodically (S2) sending receipt status reports of said first type according to said associated value of said first reporting periodicity parameter and receipt status reports of said second type according to said associated value of said second reporting periodicity parameter.

Abstract: A transmitting node (110) transmits a message (210) instructing a radio node (105) that data will be transmitted to the radio node (105) according to the same Downlink Control Information (DCI) each period (250). The message (210) includes a duration of the period (250). The transmitting node (110) further transmits the DCI to the radio node (105) for the periodic transmission (260). The radio node (105) receives the message (210) and the DCI from the transmitting node (110), and decodes each of a plurality of transmissions of the periodic transmission (260) according to the DCI.

Abstract: A communication device receives an uplink grant from a node of a cellular network. The uplink grant indicates uplink radio resources allocated to the communication device in reoccurring time intervals. For each of these time intervals, the communication device selects between an active mode and an inactive mode. In the active mode the communication device performs an uplink transmission in the allocated uplink radio resources. In the inactive mode the communication device performs no uplink transmission in the allocated uplink radio resources.

Abstract: There is disclosed a method in a first net work node (120A) operating in a split bearer environment, the first network node (120A) being communicatively connected with a second network node (120B) via an internode interface (135A, 135B). The method comprises obtaining, by the first network node (120A), expected queuing times of packet data convergence protocol, PDCP, packet data units, PDUs at the first network node (120A) and at the second network node (120B). The method comprises determining, by the first network node (120A) and according to the estimated expected queuing times, forwarding of a flow of PDCP PDUs destined for a User Equipment, UE, (100).

Abstract: A method, performed by a wireless device is described. The method is for handling a failure in a secondary cell serving the wireless device. The secondary cell and a primary cell serve the wireless device with carrier aggregation (CA) in a wireless communications network. The wireless device determines the failure in the secondary cell. The determination is based on a determination of a radio link control failure. The wireless device initiates sending an indication to a network node. The network node is one of a first network node and a second network node. The indication is based on the determined failure of the secondary cell. A method, performed by the network node is also described. The network node receives the indication and initiates a second procedure.

Abstract: A scheduling node transmits, to a radio node configured for sub-subframe operation, a semi-persistent scheduling (SPS) configuration message configuring the radio node for sub-subframe-based SPS. The SPS configuration message comprises an identifier of the radio node and indicates a pattern of sub-subframes in which a resource allocation for the radio node repeats. The radio node receives the SPS configuration message and configures the radio node for sub-subframe-based SPS according to the SPS configuration message.

Abstract: In a method for adapting a mobile network, a terminal is connected to a first access node of the mobile network via a first connection and to a second access node via a second connection. The first access node controls a data transmission for the terminal and the second access node assists in the data transmission for the terminal. The method comprises determining whether a quality of at least one of the first connection and the second connection is degraded, acquiring quality degradation information about the degradation of the quality of at least one of the first connection and the second connection based on the step of determining, and adapting the mobile network based on the step of acquiring.

Abstract: In some aspects, methods, apparatuses, and computer program products are provided for handling RLC failures in PDCP duplication where there are two logical channels on which a PDCP entity can send packets. In some aspects, the radio network node may determine a mapping between the primary and secondary logical channels and serving cells, and how this mapping can be configured for the wireless device. In some aspects, the wireless device may take different actions depending on which of a primary and a secondary logical channel, i.e. RLC entity, fails. In some aspects, the wireless device operating in PDCP duplication may notify the radio network node about the failure of a radio link supporting the secondary logical channel without triggering the RLF procedure.