Abstract: Methods and apparatus are provided. In an example aspect, a method of transmitting data is provided. The method comprises determining if a first channel on a first cell is occupied and, if the first channel on the first cell is occupied for at least a predetermined period, transmitting the data on a second channel on a second cell.

Abstract: A technique for communicating data between a first radio device (100) and a second radio device (110) is provided. A method aspect of the technique performed by the first radio device (100) comprises a step of establishing (302) a first radio communication path between the first radio device (100) and the second radio device (110), wherein the first radio communication path comprises a first radio access network, RAN, link (502) between the first radio device (100) and a first base station (200) of a RAN (500) for serving the first radio device (100). Furthermore, a second radio communication path is established (304) between the first radio device (100) and the second radio device (110), the second radio communication path being different from the first radio communication path, wherein the second radio communication path comprises a first sidelink, SL (504), between the first radio device (100) and the second radio device (110).

Abstract: A hybrid automatic repeat request (HARQ) process for cells configurable for multiple uplink grants is provided. A new rule to define the HARQ process identifiers (IDs) for configured grant is introduced, in cases when multiple configured grant configurations are used. In some embodiments, a method performed by a wireless device for a HARQ process in a cell configurable for multiple configured uplink grants is provided. The method comprises receiving an uplink grant comprising a HARQ process ID; determining that a HARQ process associated with the HARQ process ID is configured for a configured uplink grant based on a HARQ process ID offset; and starting or restarting a configured grant timer for the HARQ process. Selectively starting the configured grant timer depending on whether an identified HARQ process belongs to one of the multiple configured grant configurations, enables the gNB flexibility to schedule retransmissions or not.

Abstract: At least one Packet Data Convergence Protocol (PDCP) packet duplication leg is configured with a logical channel prioritization (LCP) restriction, restricting a logical channel in the duplication leg to which transmission resources are intentionally not available. Stale packets, (not transmitted due to a lack of resources) are discarded, so the current packet is always at the top of the queue. PDCP duplication can then be activated quickly when needed, such as in survival time mode, as it has already been configured, and the current packet is always ready for transmission. The transmission resources can be dynamically allocated by the network by transmitting a DCI command (e.g., the Configured Grant type 2 activation or dynamic grant with a specific PHY-priority-index). Alternatively, the transmission resource can be allocated beforehand, but scarcely, such that it occurs (i.e., is available) every N-th packet, and so there is a duplication for every N-th packet.

Abstract: Methods and apparatus are provided. In an example aspect, a method of transmitting data is provided. The method comprises determining if a first channel on a first cell is occupied and, if the first channel on the first cell is occupied for at least a predetermined period, transmitting the data on a second channel on a second cell.

Abstract: A method performed by a terminal in a wireless network for determining whether to cancel a scheduling request is provided. The method includes determining that a scheduling request is triggered for requesting an uplink resource for transmission of data to a network node. The method further includes, responsive to an uplink grant from the network node, transmitting the scheduling request to the network node without a cancellation of the scheduling request occurring due to a buffer status report indicator included in a protocol data unit of the terminal.

Abstract: According to an aspect, there is provided a method performed by a wireless device for performing Packet Data Convergence Protocol, PDCP, entity re-establishment. The wireless device is acting as a Packet Data Convergence Protocol, PDCP, receiving entity. The method comprises receiving (101) a request to perform PDCP entity re-establishment; responsive to the request, resetting (103) a header compression protocol by discarding any contexts associated with the header compression protocol, and refraining (105) from transmitting feedback associated with the header compression protocol to a PDCP transmitting entity.

Abstract: A method performed by a network node for handling configuration of a data connection for a UE in a communication network. The network node estimates a probability of a handover of the UE from a source node to a target node. The network node further estimates a handover latency (E) of the UE. At a time based on the estimated probability, the network node modifies the configuration of the data connection to accommodate for a handover interruption time delay based on the estimated handover latency (E).

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: A method is performed by a wireless device for transmitting PDCP packets over a multi-hop path to a receiver, in accordance with particular embodiments. The method begins with receiving PDCP signalling indicating that at least one transmitted PDCP packet has not been received. For example, the PDCP signalling may comprise a PDCP status PDU, or may comprise PDCP data recovery or PDCP re-establishment RRC signalling. In response to receiving the PDCP signalling indicating that at least one transmitted PDCP packet has not been received, the wireless device retransmits the at least one transmitted PDCP packet that has not been received, even if said transmitted PDCP packet has been acknowledged by a lower protocol layer. A method is also performed by a network node in accordance with particular embodiments.

Abstract: A wireless communication network activates or deactivates PDCP duplication for a pre-configured RLC entity using L1 signaling, delivered in Downlink Control Information (DCI), transmitted up to every subframe on the Physical Downlink Control Channel (PDCCH). Hence. PDCP duplication can be activated or deactivated for a secondary RLC in the UE much faster than by using MAC CE or RRC. Upon receipt of the L1 signal, the UE activates or de-activates PDCP duplication for or more (or all) RLC entities.

Abstract: A terminal device for a wireless communication network is configurable with a plurality of transmission time intervals. An example method comprises: receiving a grant message comprising an indication of radio resources in which the terminal device can transmit one or more wireless messages, the radio resources being configured according to a first transmission time interval of the plurality of transmission time intervals; determining the presence of data to transmit, the data being associated with a logical channel; determining a maximum transmission time interval associated with the logical channel; and, responsive to a determination that the maximum transmission time interval associated with the logical channel is less than the first transmission time interval, transmitting a scheduling request message. The scheduling request message is configured according to a second transmission time interval of the plurality of transmission time intervals, shorter than the first.

Abstract: Systems and methods are disclosed for data burst volume indication for Time Sensitive Communication (TSC). In one embodiment, a method performed by Radio Access Network (RAN) node comprises receiving, from a core network (CN) node, one or more parameters, in additional to a maximum data burst volume (MDBV) parameter, that describe one or more data volume characteristics of a Quality of Service (QOS) flow. In this manner, compared to always assuming the worst-case scenario with the MDBV, the RAN node has a more accurate understanding of the traffic characteristics, which allows the RAN node to optimally schedule radio resources to cater to the data volume.

Abstract: Methods (100, 300) and apparatus (400, 500) are provided. In an example aspect, a method (100) performed by a receiver (400) of receiving packets is provided. The method (100) comprises receiving (102) packets, wherein each packet includes an identifier that identifies a respective group of a plurality of groups, buffering (104) the packets in a buffer, and delivering (106) the packets from the buffer to a higher layer or application. Delivering (106) the packets to a higher layer or application comprises delivering each packet in a delivery time period associated with the group identified by the identifier of the packet.

Abstract: A technique for communicating protocol data units, PDUs, of a PDU session (702) through a wireline connection (506) between a residential gateway, RG (512), and a user plane function, UPF (522), of a core network, CN (720), of a radio communications system is described. The PDU session (702) extends between the UPF (522) and the RG (512) registered as a user equipment, UE (513), at the CN (720). As to a method aspect of the technique, one or more QoS parameters associated with at least one QoS flow (704) of the PDU session (702) are translated to one or more time-sensitive networking, TSN, attributes. The one or more TSN attributes are sent to an entity (502) for centralized user configuration, CUC, of a TSN domain (500) comprising the wireline connection (506) between the RG (512) and the UPF (522).

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: 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: 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: Systems and methods related to Time-Sensitive Networking (TSN)-cellular communication system Quality of Service (QoS) mapping are disclosed. In some embodiments, a method performed for operating a cellular communications system as a virtual TSN node in a TSN system comprises, at a TSN application function, receiving one or more TSN QoS parameters for the virtual TSN node from a controller associated with the TSN system and providing the one or more TSN QoS parameters to a core network function in a core network of the cellular communications system. The method further comprises, at the core network function, receiving the one or more TSN QoS parameters, mapping them to one or more QoS policies and/or one or more rules in the cellular communications system, and applying the one or more QoS policies and/or the one or more rules in the cellular communications system.

Abstract: Systems and methods for dynamic and flexible configurations for configured grants are provided. In some embodiments, a method performed by a wireless device for configuring uplink grants includes receiving, from a network node, one or more indications to enable one or more configured grant configurations per cell and/or per BWP where at least one configured grant configuration indicating a plurality of transmission occasions within a period. The method also includes transmitting at least one transmission based on the at least one configured grant configuration.