Abstract: A method for providing one or more indications related to a random access procedure by a first node (101) to a second cell (122, 124), when served by a first cell (121). The second cell (122, 124) is a secondary cell. The first node (111) registers (1401) a first identifier of the second cell (122, 124) and one or more first indications indicating at least one of: i) a second identifier of the first cell (121), ii) a third identifier of a primary secondary cell (123), iii) a fourth identifier of a first network node (111) owning the first cell (121), iv) a fifth identifier of a second network node (112) owning the primary secondary cell (123), and v) an indicator of a cell group the second cell (122, 124) belongs to. The first node (111) also provides (1402) one or more second indications based on the registered identifier and indications.

Abstract: Systems and methods for inhomogeneous slice support are provided. In some embodiments, a wireless device: signals an indication that it supports non-uniform slice availability and receives an information on how it may act based on the indicated slice support. In this way, some embodiments allow the Radio Access Network (RAN) and/or CN to correctly handle legacy and new UE types in a system where new UEs may be able to support non uniform slice availability. These may enable the CN to manage the legacy UEs in a way that their legacy behavior does not create unnecessary slice requests, e.g., for slices that are not available in a given cell. These systems and methods may allow new UEs to be configured with information for allowed slices that are not uniformly available, and that the UE may access upon detection of information expressing availability of such slices in a given cell/Tracking Area.

Abstract: Embodiments include methods for a first network node of a wireless network. Such methods include sending, to a second network node in the wireless network, a first message comprising an indication of predicted future adjustments of mobility-related settings, of the first network node, for mobility of users between a coverage area of the first network node and an adjacent coverage area of the second network node. Such methods include receiving, from the second network node in response to the first message, a second message indicating one or more of the following: acknowledgement, confirmation, or rejection of the predicted future adjustments; and corresponding adjustments of mobility-related settings for the second network node. Other embodiments include complementary methods for a second network node and a third network node, as well as network nodes configured to perform such methods.

Abstract: Embodiments include methods for a first network node of a wireless network. Such methods include determining a predicted modification in coverage and/or capacity, during a subsequent time period, of one or more of the following served by the first network node: one or more cells, and one or more reference signal (RS) beams. Such methods also include sending, to a second network node of the wireless network, a first message comprising an indication of the predicted modification in coverage and/or capacity. Other embodiments include complementary methods for the second network node, as well as network nodes configured to perform such methods.

Abstract: Systems and methods for handling of heterogeneous support for Slice Maximum Bit Rate (S-MBR) enforcement are disclosed. In one embodiment, a method performed in a core network of a cellular communications system comprises, at an Access and Mobility Management Function (AMF), obtaining information about whether a Radio Access Network (RAN) node supports S-MBR enforcement and sending, to a Session Management Function (SMF), a message that comprises an indication of whether the RAN node supports S-MBR enforcement. The method further comprises, at the SMF, sending, to a Policy and Control Function (PCF), a message that comprises an indication of whether the RAN node supports S-MBR enforcement. The method further comprises, at the PCF, making a determination of whether to apply a mechanism to enforce S-MBR for Protocol Data Unit (PDU) session of a wireless communication device on a network slice based on the received indication, and operating accordingly.

Abstract: Embodiments include methods for a first network node of a wireless network. Such methods include receiving, from a second network node of the wireless network, a first message comprising traffic status information for the second network node and performing one or more of the following operations based on the traffic status information: predicting a change in load and/or interference in a coverage area of the first network node; adjusting configurations of one or more cells and/or one or more beams served by the first network node; requesting the second network node to adjust configurations of one or more cells and/or one or more beams served by the second network node; mobility load balancing with respect to one or more user equipment (UEs) served by the first network node; and configuring one or more UEs served by the first network node to use communication settings that are more robust to interference.

Abstract: Embodiments herein disclose e.g. a method performed by a UE for handling access to one or more radio network nodes: The UE initiates a random access, RA, procedure associated to a cell and according to a first configuration for a second radio access technology, RAT, while the UE is already connected to at least one cell of a first RAT. The UE logs random access related information of the random access procedure while the UE already has a RACH report stored for the first RAT, and transmits a RACH report based on the logged random access information or the stored RACH report, upon request from a radio network node when the UE has more than one medium access control, MAC, entity. The UE further signals to the radio network node, an indication that highlights for what RAT or radio network node the transmitted RACH report was constructed.

Abstract: Embodiments include methods for a user equipment (UE) configured to operate in a cell of a wireless network. Such methods include receiving, from a network node of the wireless network, one or more configurations for UE operation in the cell and determining one or more of the following information associated with at least the received configurations and with UE data traffic: UE energy efficiency (EE), and quality-of-service (QoS). Such methods also include sending, to the network node, the determined information or one or more indications thereof. In some embodiments, such methods also include receiving, from the network node, a further configuration for UE operation in the cell. Other embodiments include complementary methods for a network node, as well as UEs and network nodes configured to perform such methods.

Abstract: It is provided a method for enabling an SCTP packet to be encapsulated in a UDP packet the method being performed by a source network node. The method comprises the steps of: obtaining a source number based on an identifier of the source network node; obtaining a destination number based on an identifier of a destination network node; generating an SCTP packet, which comprises setting a source port of the SCTP packet to a predefined port number and setting a destination port of the SCTP packet to the destination number; generating a UDP packet, which comprises setting a source port of the UDP packet to the source number and setting a destination port of the UDP packet to the destination number; encapsulating the SCTP packet in the UDP packet; and sending the UDP packet for transport to the destination network node.

Abstract: Systems and methods for restricting a number of primary secondary cells (or primary cells in a secondary cell group) (PSCells) in a Mobility History Information (MHI) managed by a wireless device are disclosed. In some embodiments, a method performed by the wireless device for restricting a number of stored PSCells in MHI comprises storing PSCell history information in memory of the wireless device for a maximum number of PSCells. The PSCell history information is part of MHI stored for the wireless device. In response to the number of PSCells exceeding the maximum number of PSCells, the method further comprises removing at least some of the stored PSCell history information from the memory of the wireless device.

Abstract: Methods for managing quality-of-experience, QoE, measurements by a user equipment, UE. A first example method, carried out by a first radio access network, RAN, node, comprises transmitting (1010), to a second node in the RAN, configuration information for one or more RAN-visible QoE measurements configured for the UE by the first node. The second node may be associated with the first node with respect to at least one of: changing a configuration for the UE for multi-connectivity; mobility for the UE; RRC resume or RRC reestablishment for the UE; and switching transfer of data for the service from a path going to the UE via the first RAN node to a path going to the UE via the second RAN node.

Abstract: Techniques for managing quality-of-experience (QoE) measurements by a user equipment (UE). An example method, in a first node in a radio access network (RAN), comprises transmitting (1010), to a second node in the RAN, status information for measurements associated to one or more QoE measurements configured for the UE by the first node. The second node may be associated with the first node with respect to at least one of the following: changing a configuration for the UE for dual connectivity; mobility of the UE; RRC resume or RRC reestablishment of the UE; and switching the transfer of data for the service from a path going to the UE via the first RAN node to a path going to the UE via the second RAN node.

Abstract: Redirection and retry of registration is disclosed herein. In some embodiments, a User Equipment (UE) of a Next Generation Radio Access Network (NG-RAN) is adapted to transmit a Non-Access Stratum (NAS) registration request comprising one or more Single-Network Slice Selection Assistance Information (S-NSSAI), indicated as one or more requested S-NSSAI. The UE is further adapted to receive, in an Access Stratum (AS) protocol, an AS-level registration reattempt indication to instruct the UE to reattempt the NAS registration request in a target cell. The UE is also adapted to reattempt the NAS registration in the target cell, responsive to receiving the AS-level registration reattempt indication.

Abstract: Methods of operating a user equipment, UE, include storing mobility history information, MHI, independent of a radio resource control, RRC, state, wherein the MHI includes a cell identifier that is a serving cell and time information corresponding to how long the UE has stayed in the serving cell, logging public land mobile network, PLMN, specific MHI into the UE, and reporting at least a portion of the MHI to a network node. Analogous methods of operating a radio access network, RAN, node and core network node of a wireless communication system are also provided.

Abstract: Exemplary embodiments include methods performed by a central unit, CU, of a base station, for selecting a special cell, SpCell, to be used by a first distributed unit, DU, of the base station for serving a user equipment, UE. Such embodiments can include sending, to the first DU, a first request comprising an identity of a first cell, served by the first DU, as a preferred SpCell for the UE; and identities of one or more second cells served by the first DU. Such embodiments can also include receiving, from the first DU, a first response comprising a first indication that the first DU cannot configure the first cell as an SpCell for the UE, and a second indication that the first DU can configure zero or more third cells as an SpCell for the UE.

Abstract: According to some embodiments, a network node including a master node-distributed unit, MN-DU, and a MN-centralized unit, MN-CU, in communication with each other is provided. The network node includes processing circuitry configured to receive, at the MN-DU, first signalling that request for a master cell group, MCG, configuration associated with a wireless device to be modified, the first signalling indicating that the request for the MCG configuration modification is based at least on a change in secondary cell group, SCG, configuration associated with the wireless device, and modify, at the MN-DU, the MCG configuration based at least on the change in the SCG configuration associated with the wireless device.

Abstract: Embodiments include methods for beam-level mobility load balancing, MLB, in a radio access network, RAN. Optionally, such methods include receiving (1810) measurement reports from a plurality of user equipment, each measurement report comprising radio measurements related to a source beam associated with a source node and target beams associated with one or more target nodes. Such methods include exchanging (1820) beam-level load information with the target nodes and, based on the beam-level load information and (optionally) the reports, selecting (1830) one or more target beams, associated with a particular target node, for MLB operations with the source beam.

Abstract: A first network node and method therein for handling one or more services in a wireless communication network are disclosed. The first network node is configured to receive from a second network node an indication relating to application layer measurement configurations for one or more services for one or more wireless communication devices, determine a set of application layer measurement configurations for one or more wireless communication devices based on the received indication relating to application layer measurement configurations, and send the determined set of application layer measurement configurations or an indication of the determined set of application layer measurement configurations to the one or more wireless communication devices.

Abstract: A method, performed by a User Equipment (UE) in dual connected mode is provided. The method is for determining and transmitting an UpLink (UL) Packet Data Convergence Protocol (PDCP) delay. The UE is connected to at least two radio network nodes. The UE determines (430) the delay. The determined delay is associated with each of the radio network nodes to which the UE is connected. The UE then transmits (450), to at least one of the radio network nodes, the determined delay.

Abstract: Example embodiments presented herein are directed towards a wireless terminal and base station, and corresponding methods therein, for providing a handover for a subset of bearers associated with the wireless terminal. The subset of bearers is less than a total cumber of bearers associated with the wireless terminal. Thus, upon the completion of the handover procedure, at least one bearer will stay connected with a source base station.