Abstract: Embodiments of the present disclosure relate to routing in integrated access and backhaul (IAB) communication. According to embodiments of the present disclosure, two or more IAB donors share topology information for inter IAB network routing. The IAB donors allocate addresses to IAB nodes with dual connectivity based on the topology information. In this way, it avoids address collisions when routing in the inter IAB networks.

Abstract: Disclosed are methods for controlling downlink transmissions in an integrated access and backhaul network. An example method may include determining to control a first downlink transmission for a first interface between a second apparatus associated with a user plane of the central unit of the donor and a node in the integrated access and backhaul network, and transmitting, to the second apparatus, a first non UE-associated signaling request to control the first downlink transmission for the first interface, the first non UE-associated signaling request including information associated with the node. Related apparatuses and computer readable media are also disclosed.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable storage media for transferring traffic in integrated access and backhaul (IAB) communication. According to embodiments of the present disclosure, a first Central Unit-Control Plane (CU-CP) of a first IAB donor transmits, to a second CU-CP of a second IAB donor, a request to transfer target traffic via a Distributed Unit (DU) of the second IAB donor. The request comprises first information of the target traffic. The first CU-CP receives, from the second CU-CP, second information to be used for configuring the target traffic. This solution can improve the reliability and robustness of the IAB communication.

Abstract: Embodiments of the present disclosure relate to devices, methods, apparatuses and computer readable media for communication during inter-donor topology adaptation. A first device transmits, to a second device, first information about a first communication interface between the first device and a third device, receives, from the second device, an indication that context information associated with at least one fourth device and the first communication interface is retained, and uses the context information in communication via a second communication interface between the first device and the second device. The second device receive the first information, transmit, to the third device, a request for obtaining the context information, and receive the context information from the third device.

Abstract: There is provided a method at a first network node, comprising: receiving, from a second network node, a message comprising a requested quality of service (QoS) profile and one or more alternative QoS profiles, wherein the QoS profiles are associated with a communication with a user equipment; determining that the requested QoS profile cannot be provided by the first network node for a communication between the first network node and the user equipment; determining that at least one of the one or more alternative QoS profiles can be provided by the first network node for a communication between the first network node and the user equipment; transmitting, to the second network node, an indication that an alternative QoS profile can be provided by the first network node; and, transmitting, to the second network node, an indication for configuring the user equipment based on the requested QoS profile.

Abstract: An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive (1400) a request to create context for a migrating node and optionally at least one child node of the migrating node; allocate (1402) addresses to the migrating node and optionally the at least one child node of the migrating node; and send (1404) the addresses allocated to the migrating node and optionally the at least one child node of the migrating node, prior to the migrating node migrating from a source to a target.

Abstract: There are provided measures for control of data rate boosts in radio access networks. Such measures exemplarily comprise, at an access node in a mobile network, receiving (S51), from a core network entity in said mobile network, an indication in relation to a data rate boost with respect to an uplink flow of a terminal, and preparing (S52) said data rate boost based on said indication.

Abstract: Systems, methods, apparatuses, and computer program products relating to packet data unit (PDU) session, for example, in 5G or new radio access technology (NR). One method may include receiving a configuration for how to handle flows to two network nodes for transmission. The method may include directing the flows of an incoming PDU session to two network nodes for the transmission.

Abstract: Embodiments of the present disclosure relate to for inter-CU topology adaptation. A first device establishes a communication interface between the first device and a second device. The first device receives from the second device a handover complete message indicating that a handover of the second device from a third device to the first device is completed. The first device transmits to the second device a command indicating the second device to activate cells configured by the first device.

Abstract: Various communication systems may benefit from improved quality of service flow. A method may include receiving an indication at a radio resource control entity or service data adaptation protocol layer entity in a radio protocol of a receiver from a transmitter. The indication can include instructions to relocate a quality of service flow from a source to a target data radio bearer. The method may also include starting a timer associated with the quality of service. In addition, the method may include buffering data packets received as part of the quality of service flow from the target data radio bearer during a duration of the timer. Further, the method may include allowing for the transmission of the buffered data packets of the quality of service flow received from the target data radio bearer to an upper protocol layer after the duration of the timer has lapsed or stopped.

Abstract: An apparatus comprising: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to: receive (1400) a request to create context for a migrating node and optionally at least one child node of the migrating node; allocate (1402) addresses to the migrating node and optionally the at least one child node of the migrating node; and send (1404) the addresses allocated to the migrating node and optionally the at least one child node of the migrating node, prior to the migrating node migrating from a source to a target.

Abstract: A technique of performing a handover within a 5G network include at least one of the following approaches. In one approach, a source gNB resets any mapping indicators from the forwarded SDAP PDUs, i.e., forwarded downlink data packets. Accordingly, subsequent uplink data packets will not be mapped according to the mapping tables of the source gNB. In another approach, the UE is configured to ignore mapping indicators of the forwarded downlink data packets. That is, in response to receiving a handover command message from the source gNB, the UE does not respond to updates of mapping tables from the source gNB. Again, subsequent uplink data packets will not be mapped according to the mapping tables of the source gNB.

Abstract: There is provided a method at a first network node, comprising: receiving, from a second network node, a message comprising a requested quality of service (QoS) profile and one or more alternative QoS profiles, wherein the QoS profiles are associated with a communication with a user equipment; determining that the requested QoS profile cannot be provided by the first network node for a communication between the first network node and the user equipment; determining that at least one of the one or more alternative QoS profiles can be provided by the first network node for a communication between the first network node and the user equipment; transmitting, to the second network node, an indication that an alternative QoS profile can be provided by the first network node; and, transmitting, to the second network node, an indication for configuring the user equipment based on the requested QoS profile.

Abstract: Methods and apparatus, including computer program products, are provided for localized routing. In some example embodiments, there is provided a method. The method may include receiving, by a target base station, localized routing context information for a user equipment, wherein the localized routing context is received from at least one of a user gateway or a controlling mobility gateway; and sending, by the target base station, updated localized routing context information to at least one other base station, wherein the updated localized routing context information is sent via a local interface between the target base station and the at least one other base station. Related apparatus, systems, methods, and articles are also described.

Abstract: A technique of performing a handover within a 5G network include at least one of the following approaches. In one approach, a source gNB resets any mapping indicators from the forwarded SDAP PDUs, i.e., forwarded downlink data packets. Accordingly, subsequent uplink data packets will not be mapped according to the mapping tables of the source gNB. In another approach, the UE is configured to ignore mapping indicators of the forwarded downlink data packets. That is, in response to receiving a handover command message from the source gNB, the UE does not respond to updates of mapping tables from the source gNB. Again, subsequent uplink data packets will not be mapped according to the mapping tables of the source gNB.

Abstract: Systems, methods, apparatuses, and computer program products relating to packet data unit (PDU)session, for example, in 5G or new radio access technology (NR).One method may include receiving a configuration for how to handle flows to two network nodes for transmission. The method may include directing the flows of an incoming PDU session to two network nodes for the transmission.

Abstract: Various communication systems may benefit from improved quality of service flow. A method may include receiving an indication at a radio resource control entity or service data adaptation protocol layer entity in a radio protocol of a receiver from a transmitter. The indication can include instructions to relocate a quality of service flow from a source to a target data radio bearer. The method may also include starting a timer associated with the quality of service. In addition, the method may include buffering data packets received as part of the quality of service flow from the target data radio bearer during a duration of the timer. Further, the method may include allowing for the transmission of the buffered data packets of the quality of service flow received from the target data radio bearer to an upper protocol layer after the duration of the timer has lapsed or stopped.

Abstract: Methods and apparatus, including computer program products, are provided for localized routing. In some example embodiments, there is provided a method. The method may include receiving, by a target base station, localized routing context information for a user equipment, wherein the localized routing context is received from at least one of a user gateway or a controlling mobility gateway; and sending, by the target base station, updated localized routing context information to at least one other base station, wherein the updated localized routing context information is sent via a local interface between the target base station and the at least one other base station. Related apparatus, systems, methods, and articles are also described.

Abstract: Disclosed herein are apparatus, method, and computer program whereby a cellular network base station operates with closed subscriber group indicator indicating off. The cellular network base station transmits information to a user equipment indicating the availability of a local service area network at a location in which the user equipment is currently located.