Abstract: A wireless device registers with a first PLMN having a first PLMN identity. A first plurality of RA procedures is performed while registered with the first PLMN. First information related to the first plurality of RA procedures is stored. The wireless device registers with a second PLMN having a second PLMN identity different than the first PLMN identity after registering with the first PLMN and after performing the first plurality of RA procedures. The first information is discarded responsive to registering with the second PLMN. A second plurality of RA procedures is performed while registered with the second PLMN. Second information related to the second plurality of RA procedures is stored. An information message is transmitted to the second PLMN. The information message includes a plurality of RACH reports corresponding to the second plurality of RA procedures based on the second information.

Abstract: Embodiments include methods performed by an evolved Node B (eNB) configured with a Long-Term Evolution (LTE) radio access technology (RAT). Such methods include managing access to resources of the LTE RAT by a user equipment (UE) served by the eNB, based on one or more radio resource management (RRM) policies for the LTE RAT. Such methods also include sending, to a next-generation Node B (gNB) configured with a New Radio (NR) RAT, a request to establish dual connectivity with the UE as a secondary node (SN), wherein the request includes a Subscribers Profile ID for RAT/Frequency Priority (SPID) that is associated with the one or more RRM policies. Other embodiments include complementary methods performed by a gNB, as well as eNBs and gNBs configured to perform such methods.

Abstract: A method performed by a target network node includes receiving, from a source network node, a handover request associated with a wireless device. The target network node transmits, via a core network node, a handover reject message to the source network node. The handover reject message comprises a cause value for rejecting the handover request.

Abstract: A network node (1700) configured to operate as a source network node (32) of a reconfiguration procedure transmits signaling to a target network node (34) of the reconfiguration procedure. The signaling indicates (i) whether or not the target network node (34) is to provide feedback information (44) to the source network node (32) and/or (ii) which one or more types of feedback information (44) the target network node (34) is to provide to the source network node (32). Based on the received feedback information (44), the network node may train a model to predict predicted information, predict the predicted information using the model, and make a decision based on the predicted information.

Abstract: Embodiments include methods for a user equipment (UE), particularly for performing quality of experience (QoE) measurements configured by a wireless network. Such methods include receiving, from a radio access network node (RNN) in the wireless network, a request for QoE measurement reports that are available at the UE and that are associated with one or more services provided by the UE application layer. Such methods also include sending one or more QoE measurement reports to the RNN in accordance with the request. Other embodiments include complementary methods for a RNN, as well as UEs and RNNs configured to perform such methods.

Abstract: Embodiments include methods for a user equipment (UE) to perform quality of experience (QoE) measurements configured by a wireless network. Such methods include receiving, from a radio access network node (RNN) in the wireless network, a QoE measurement configuration for one or more services provided by the UE application layer. Such methods include performing application-layer QoE measurements for the one or more services according to the QoE measurement configuration and sending, to or via the RNN in accordance with QoE measurement configuration, one or more messages comprising: one or more QoE measurement reports comprising results of the QoE measurements; and network assistance information (NAI) related to one or more paths that carry data associated with the one or more services. Other embodiments include complementary methods for RNNs and measurement functions, as well as UEs, RNNs, and measurement functions configured to perform such methods.

Abstract: An example of this disclosure provides a method (500) performed by a base station control unit (CU). The method comprises receiving (502) a request from a base station distributed unit (DU) to store information for a first plurality of cells to be served by the base station DU. The method also comprises sending (504) a response to the base station DU, wherein the response indicates that storing information for the first plurality of cells would exceed a maximum number of cells that can be stored by the base station CU.

Abstract: A method by a gNB-DU node is provided where the method includes receiving a UE context setup request from a gNB-CU node, the UE context setup request comprising an identification of frequency bands and measurement objects for the frequency bands. The method includes selecting frequency bands to optimize performance throughput. The method includes sending a UE context setup response to the gNB-CU node, the UE context setup response comprising a list of measurement object IDs associated to the frequency bands selected.

Abstract: A network node (16) obtains, for each of one or more wireless devices, radio performance information (18) indicating measured radio performances that multiple cells respectively provided to the wireless device (20A) while the wireless device (20A) was simultaneously connected to the multiple cells in multi-connectivity operation under certain conditions. Based on the obtained radio performance information (18), the network node (16) builds a prediction model (24) which models radio performance that a cell will provide under one or more conditions. The network node (16) then makes or configures another network node to make decisions on mobility, scheduling and/or radio configuration of wireless devices based on the prediction model (24).

Abstract: According to certain embodiments, a method for allocating TEIDs by a CU-CP of a network node includes receiving, from a CU-UP, at least one uplink TEID (UL TEID) associated with a DRB. The at least one UL TEID is sent to a distributed unit (DU). At least one downlink TEID (DL TEID) associated with the DRB is received from the DU. The at least one DL TEID associated with the DRB is then sent to the CU-UP.

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: Systems and methods related to balancing random access resources between 2-step Random Access Channel (RACH) and 4-step RACH. In one embodiment, a method performed by a first network node comprises obtaining information related to 2-step RACH and/or 4-step RACH, for cell(s) and/or beam(s) controlled by the first network node. The method further comprises determining, based on the obtained information, first assistance information for 2-step and/or 4-step RACH configuration, for the cell(s) and/or the beam(s) controlled by the first network node. The method further comprises transmitting, to a second network node, second assistance information for the 2-step and/or 4-step RACH configuration, for the cell(s) and/or the beam(s) controlled by the first network node. The second assistance information comprises the first assistance information or information that indicates one or more parts of the first assistance information.

Abstract: A method in a radio access network, RAN, node for paging user equipment in an area spanning across a plurality of radio access technologies, RATs, comprises determining the capabilities of a user equipment to which a paging message is intended, and transmitting the paging message to the UE via one or more RATs which the UE is determined as being capable of communicating with.

Abstract: According to certain embodiments, a method is disclosed for use in a network node. The method comprises obtaining network slice availability associated with one or more neighboring network nodes. The network slice availability indicates which of a plurality of network slices is supported by each of the one or more neighboring network nodes. The method further comprises managing slice connectivity of a wireless device based on the network slice availability of the one or more neighboring network nodes.

Abstract: A simulated Public Warning System (PWS) message is defined for efficient PWS testing. The simulated PWS message mimics a conventional PWS message, but indicates that it is not to be propagated across an air interface to UEs. However, the simulated PWS message is otherwise propagated through the network as a PWS message. This allows for testing the generation and propagation of PWS messages, without wasting valuable air interface and battery resources. In some embodiments, network nodes may initiate testing by requesting a simulated PWS message. An Access and Mobility management Function (AMF) node in a wireless communication network collects and reports network status to a PWS entity. The AMF node ascertains the functionality of network functions, nodes, and interfaces to which it is connected, independently from receiving reports of such functionality, and an indication of any detected fault or failure is sent to the PWS entity.

Abstract: Embodiments include methods for a first radio network node (RNN) in a wireless network to configure quality of experience (QoE) measurements by user equipment (UEs). Such methods include receiving, from a measurement function in the wireless network, a QoE measurement configuration (QMC associated with one or more service types; and configuring one or more UEs with the QMC. Such methods also include sending to a second RNN in the wireless network, a first request for handover of a particular one of the UEs from a first cell served by the first RNN via a first radio access technology (RAT) to a second cell served by the second RNN via a second RAT. The first request includes the QMC. Other embodiments include complementary methods performed by a second RNN or by a UE, as well as first RNNs, second RNNs, and UEs configured to perform such methods.

Abstract: A method performed by a Radio Access Network (RAN) node for handling a service request from a User Equipment, UE, in a wireless communications network. The RAN node supports a first network slice in a first Area, A1. The RAN node connects (902) to the UE via A1. The RAN node sends (903) to a Core Network (CN) node, a service request from the UE. The service request relates to one or more network slices that the UE requests in a certain Area. The RAN node receives (904) an indication from the CN node. The indication indicates the one or more network slices requested by the UE together with any one or more out of: —A list of network slices that are allowed to be accessed by the UE in the current A1, and—an indication of a new area priority policy associated to the one or more network slices that are requested by the UE. The RAN node decides (905) how to handle the service request from the UE based on the indication received from the CN node.

Abstract: A method performed by a first network node in a radio access network is provided. The method includes determining to initiate a procedure with a first set of at least one neighboring network node. The method further includes, responsive to the determining, sending to the first set of at least one neighboring network node a first message including timing accuracy information for at least one synchronization source of the first network node on at least one of a per cell basis, a per network node basis, or a per neighboring network node for a cell served by the first network node.

Abstract: A method performed by a first network node. The first network node operates in a communications network. The method is for handling a measurement configuration. The first network node sends an indication to a second network node operating in the communications network. The indication indicates a transmission status of one or more Channel State Information-Reference Signal (CSI-RS) configurations of the first network node. The second network node receives the indication. The third network node receives another indication from the second network node. The third network node is managed by the second network node. The another indication indicates a transmission status of the one or more CSI-RS configurations of the first network node and configures the wireless device based on the received other indication.

Abstract: A shared Radio Network Node, RNN, and a method for managing overload in a core network. The shared RNN is configured to serve a wireless device, and the wireless device and the RNN are operating in a wireless communications network connected to the core network. The RNN receives a connection request from the wireless device, wherein the connection request comprises a mapping parameter configured to map to an MME connected to the RNN. Further, the MME is logically partitioned into several MMEs and configured to support multiple MME Codes, MMECs, each of which MMECs is pointing at a sharing operator. The mapping parameter comprises an MMEC configured to map to one MMEC supported by the MME. Further, the RNN rejects or redirects the connection request when the MMEC configured to map to one MMEC supported by the MME is associated with an overload action.