Abstract: Apparatuses and methods in a communication system are disclosed. User equipment transmits a connection request to a radio access node, indicating to the radio access node that the apparatus supports resume or setup to a radio access node of a different system or different frequency range. The user equipment receives instructions to switch to a radio access node of a different system or a radio access node utilising a different frequency range and performs random access procedure followed by a radio resource control complete message transmission to the instructed radio access node.

Abstract: It is provided a method comprising at least one of a) and b): a) monitoring whether a service request to produce a producer service is received and producing the producer service if the service request is received, wherein the producer service is a service produced by the access network; and b) consuming a producer service from a core network or an access network, wherein the producer service is consumed by an access network.

Abstract: A method, apparatus and computer program is described comprising: receiving a first register request from a first node of a mobile communication system at a network repository function of a mobile communication system, wherein the first register request registers parameters or capabilities of the first node in the network repository function to enable the network repository function to provide information relating to said parameters or capabilities to a second node of the mobile communications system, wherein at least one of the first and the second node is an access node of the mobile communication system.

Abstract: Devices, methods and computer programs for small data trans-Client device Control Plane whether an ongoing small data transmission, SDT, transaction comprising one or more uplink, UL, small data transmissions with a control plane network node device is to be terminated. If yes, a radio resource control, RRC, message comprising termination information related to the determined termination of the on-ongoing SDT going SDT transaction is forwarded from the client device to the control plane terminated network node device.

Abstract: Various example embodiments relate to relate to network nodes (20A; 20B), methods and computer program products configured to hand over a communication link between a cell and user equipment (10) in a wireless communication network from a source cell (40A) to a target cell (40B; 40C).

Abstract: A network node 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 perform: transmitting a request to a plurality of nodes to prepare one or more cell candidates; receiving an indication from at least one of the plurality of nodes indicating a capacity to prepare one or more further cell candidates; and transmitting, to one or more of the at least one of the plurality of nodes, a further request to prepare at least one further cell candidate.

Abstract: Techniques of performing multi-shot SDT transactions include determining, by a distributed unit (DU) of a base station gNB) in a wireless network, a condition for terminating of a multi-shot small data transmission (SDT) and provide an indication of the termination to an entity within the wireless network.

Abstract: Systems, methods, apparatuses, and computer program products for a method of mobility between distributed units with a local control plane are provided. For example, a method can include detecting, at a target distributed unit, a handover based on an indication from a source distributed unit after a handover command has been sent to a user equipment to hand over from the source distributed unit to the target distributed unit. The method can also include sending, from the target distributed unit to a central unit user plane, a data transmission resume notification, to trigger to the central unit user plane to resume downlink data transmission toward the target distributed unit. The downlink data transmission was previously suspended by instructions from a source distributed unit to the central unit user plane when the handover was initiated from the source distributed unit to the target distributed unit.

Abstract: An apparatus, comprising at least one processor, and at least one memory storing instructions, the at least one memory and the instructions configured to, with the at least one processor, cause a target node to signal to an anchor node a first information related to a context relocation of a context of a terminal device.

Abstract: For performing a small data transmission triggered in an inactive state of a user equipment (S701, S703), a first transmission method or a second transmission method is selected at least based on a cell of a cellular communication system in which the small data transmission is to be performed by the user equipment (S705). Then the small data transmission is performed using the selected first or second transmission method (S707).

Abstract: Techniques are provided for enabling user equipment (UE) context retrieval in radio resource control RRC inactive status with a shared radio access network (RAN) database (DB) within a distributed database architecture. A version indicator in an inactive Radio Network Temporary Identifier (I-RNTI) is populated by the UE to indicate one or more I-RNTI versions, defined herein, and indicates the type of data in the remainder of the I-RNTI used for communicating the location of a RAN DB that stores the UE context, to a target network node. The target network node then uses the data in the I-RNTI, further dependent on the I-RNTI version, to retrieve the UE content from the RAN database. Certain embodiments utilize a RAN DB Area (RDBA) and/or RAN DB Set Area (RDSA), and certain embodiments utilize a network node set ID.

Abstract: In some example embodiments, there may be provided a method that includes receiving, by a central unit user plane function of a radio network node, a bearer context setup request message from a central unit control plane function of the radio network node, wherein the bearer context setup request message comprises at least one of a list of preemption candidates or a preemption criteria; and selecting, by the central unit user plane function at least one preemption candidate based on the bearer context setup request message. Related systems, methods, and articles of manufacture are also disclosed.

Abstract: Apparatus and method in a communication system are disclosed. One or more measurement reports are received (400) from a terminal device. One or more reference signals are received and measured (402) from the terminal device. The accuracy of the one or more received measurement reports is determined (404) based on comparison of the measurement reports and measured the reference signals and/or statistical analysis of the measurement reports.

Abstract: An apparatus, comprising at least one processor, and at least one memory storing instructions, the at least one memory and the instructions configured to, with the at least one processor, cause a serving secondary node to transmit to a target secondary node a preparation request indicating that an inter-secondary node conditional PSCell change is to be prepared.

Abstract: Disclosed is a method comprising transmitting a beam switch request from a first distributed unit to a second distributed unit. The first distributed unit then receives a beam switch acknowledgment from the second distributed unit. The first distributed unit transmits a beam switch notification to a central unit, wherein the first distributed unit and the second distributed unit are at least partly controlled by the central unit. The first distributed unit further transmits a beam switch command to a terminal device.

Abstract: There is provided an apparatus comprising determining, by a first access and mobility management function in a first network, that handover of a user equipment from the first access and mobility management function to a second access and mobility management function in a second network is required; sending, to the second access and mobility management function, a context update request for the user equipment, wherein the context update request comprises an indication that the source and target access node are the same; and receiving, from the second access and mobility management function, a context update response based on the context update request, the context update response comprising the indication that the source and target access node are the same.

Abstract: Systems, methods, apparatuses, and computer program products for user equipment context relocation at radio access network notification area edge are provided.

Abstract: Systems, methods, apparatuses, and computer program products for user equipment (UE) context duplication. In certain embodiments, when a UE may resume at a target network node within its configured radio area, a duplication of a UE context may occur at the target network node, and the target network node may allocate an additional/secondary identifier to the UE. The secondary identifier may indicate the UE's identity within the network. When configured with a secondary identifier, the UE may retain an original/primary identifier assigned by the anchor network node. The anchor network node may retain the UE context and may maintain user plane connectivity to a core network. The UE may use this primary identifier for operations within the configured radio area, whereas the secondary identifier may be used when resuming operations to a cell that is outside of the configured radio area.

Abstract: Systems, methods, apparatuses, and computer program products for user equipment (UE) context duplication. In certain embodiments, when a UE may resume at a target network node within its configured radio area, a duplication of a UE context may occur at the target network node, and the target network node may allocate an additional/secondary identifier to the UE. The secondary identifier may indicate the UE's identity within the network. When configured with a secondary identifier, the UE may retain an original/primary identifier assigned by the anchor network node. The anchor network node may retain the UE context and may maintain user plane connectivity to a core network. The UE may use this primary identifier for operations within the configured radio area, whereas the secondary identifier may be used when resuming operations to a cell that is outside of the configured radio area.

Abstract: Systems, methods, apparatuses, and computer program products for configured grant small data transmission reconfiguration without user equipment context in a distributed unit are provided. For example, a method can include receiving, at a first network element, data in a transmission from a user equipment. The method can also include storing a first indication of a first configuration used by the user equipment to perform the transmission. The method can further include sending, to a second network element, a resume request to set up communication context for the data transmission. The method can additionally include receiving, from the second network element, a second indication of a second configuration previously allocated to the user equipment. The method can also include comparing the first indication and the second indication. The method can further include proceeding with setting up the communication of the data based on the comparing.