Abstract: In one aspect, an MME throttles (or otherwise controls) the amount or frequency of UL data that a UE transmits in the control plane, such as by communicating to the UE rate control information (e.g., a throttling factor or throttling delay). For instance, the MME may throttle NAS messages with user data (i.e., NAS Data PDUs) sent using control plane CIoT EPS optimization by adding a throttling factor and/or a throttling delay in a NAS message sent to the UE.

Abstract: In one aspect, an MME throttles (or otherwise controls) the amount or frequency of UL data that a UE transmits in the control plane, such as by communicating to the UE rate control information (e.g., a throttling factor or throttling delay). For instance, the MME may throttle NAS messages with user data (i.e., NAS Data PDUs) sent using control plane CIoT EPS optimization by adding a throttling factor and/or a throttling delay in a NAS message sent to the UE.

Abstract: A method for default bearer translation with GBR bearer translation. A GBR bearer is known in UE, 5G-RAN, and SMFs from the existing QoS flow parameters from one or more QoS flows for a PDU session that includes an assigned value for guaranteed bit rate. In case a PDU session has multiple associated QoS flows that each include an assigned value for GBR, then each flow is determined as a candidate GBR bearer for the target E-UTRAN access. Each GBR bearer candidate is arranged in a priority order based on, for example, the QoS flow parameters (e.g., ARP), and the resulting EPS QCI when translating QoS flow parameters in 5G to a 4G representation. Hence common priority rules for 1:1 mapping between 5G representation and 4G representation can be used by the nodes having knowledge of the PDU session and the QoS flows characterized as GBR QoS flows.

Abstract: A basestation in a cellular communications network is operable to send a message to a Mobility Management Entity, relating to a suspension or resumption of a connection of a UE, wherein the message contains key renewal information. The Mobility Management Entity receives the message, and determines whether a key renewal condition is met. If the key renewal condition is met, the MME forwards a new NH, NCC pair to the base station. If a message received from the MME includes a NH, NCC pair, the basestation derives keying information using the NH, NCC pair for future use in deriving keys.

Abstract: During PDN connection establishment in the EPC, a UE and a session management entity (SME) (e.g., PGW-C+SMF) exchange information. In case the SME supports more than one S-NSSAI, before the SME provides an S-NSSAI to the UE, the SME should check such that the selected S-NSSAI is among the UE's subscribed S-NSSAIs by retrieving the Subscribed S-NSSAI from a UDM using, for example, the Nudm_SDM_Get service operation.

Abstract: The embodiments herein relate to a method performed by a first node (103, 105) for handling Quality of Service, QoS, information. The first node (103, 105) receives information for a 5G QoS flow from a second node (108). The information comprises 5G or 4G QoS information, or both 5G and 4G QoS information, or priority information. The first node (103, 105) determines whether there are any available 4G bearer IDs. When there are no available 4G bearer IDs, the first node (103, 105) determines an action for handling the information.

Abstract: This disclosure is directed to a method performed by a wireless communication device, WCD. The method comprises: receiving a base station message transmitted by a base station; and determining whether the received base station message includes information indicating that Non Access Stratum, NAS, type requests are supported by the base station, and also to a method in a base station communicating with a wireless communication device, WCD, residing in a cell served by the base station, the method comprising: generating, by the base station, a message comprising system information; transmitting, by the base station, the message comprising the system information, wherein the system information comprises information indicating that Non Access Stratum, NAS, type requests are supported by the base station.

Abstract: A method for operating a User Equipment (UE) is disclosed, wherein the UE is served by a source first network function in a first network and requires to register with a target second network function in a second network. The method comprises generating a registration request with integrity protection for at least a part of the registration request (1200), and sending an integrity protected part of the registration request to the source first network function via the target second network function (1202). Also disclosed are methods of operating first and second network functions.

Abstract: A method is described performed by a wireless communication network for recovering a public warning system when a radio network node comprising radio circuitry for communication with served user equipments, UEs, has been newly added or restarted in the network. The method comprises sending, by the radio network node to a core network node, information indicating that the radio network node has been restarted or added to the network, the information including one or more tracking area identifiers, TAI, identifying one or more tracking areas that the radio network node supports and/or a radio network node identifier, ID, identifying the radio network node in the communication network, and, in case the radio network node ID is sent but not the one or more TAIs, acquiring, by the core network node the one or more TAIs based on the received radio network node ID.

Abstract: A method for registering a UE in a visited network. The method includes the UE selecting a home network slice identity (h-NSI), wherein the h-NSI is associated with an index value. The method also includes the UE obtaining the index value with which the selected h-NSI is associated, and after obtaining the index value, the UE transmitting a registration message towards a control node, the registration message comprising a requested NSI (r-NSI) (e.g., an S-NSSAI) and the obtained index value. The method further includes the UE receiving a registration response message comprising an allowed NSI (a-NSI) and an index value associated with the a-NSI.

Abstract: A method for registering a UE in a visited network. The method includes the UE selecting a home network slice identity (h-NSI), wherein the h-NSI is associated with an index value. The method also includes the UE obtaining the index value with which the selected h-NSI is associated, and after obtaining the index value, the UE transmitting a registration message towards a control node, the registration message comprising a requested NSI (r-NSI) (e.g., an S-NSSAI) and the obtained index value. The method further includes the UE receiving a registration response message comprising an allowed NSI (a-NSI) and an index value associated with the a-NSI.

Abstract: A Radio Access Network, RAN, node, a Core Network, CN, node and respective methods performed thereby are provided for paging a wireless device in a wireless communication network. The method performed by the RAN node comprises exchanging paging strategy information with a CN node, performing a RAN paging procedure of the wireless device according to the exchanged paging strategy information, and updating the paging strategy information based on the outcome of the performed paging procedure.

Abstract: It is presented a method for error handling during a Mobile Terminated, MT, call to a User Equipment, UE, in a cellular system. The method is performed by a network device being an alternative Mobility Management Entity, MME, of the cellular system. The method comprises the steps of: failing to forward a paging request to a serving MME, at which the UE is registered; and paging the UE using a Circuit Switched, CS, paging. A corresponding network device, User Equipment, computer program and computer program product are also presented.

Abstract: A first node in a connection network and a method for providing said first node with information related to a geographical position of a user terminal, which connection network comprises said first node, a second node and an access network, wherein: the first node has access to at least one user terminal via a wireless interface provided by the access network; and the second node is connected to the first node and has access to at least one external network, which method is characterized by the steps of: sending a session request from the second node to the first node; and sending a session response from the first node to the second node after receiving said session request, which session response comprises information related to a geographical position of the terminal associated with the session in question.

Abstract: The embodiments herein relate to a method implemented in radio access node. The radio access node receives a list of prioritized Public Land Mobile Network (PLMN) Identities (IDs). The list of prioritized PLMN IDs comprises a PLMN ID of a serving PLMN and one or more PLMN IDs for one or more PLMNs of one or more shared networks. The radio access node instructs the wireless device to search for suitable cells for handover on at least one PLMN identified in the list of prioritized PLMN IDs and receives a list of suitable cells for handover. The radio access node determines a target PLMN ID and a target cell ID based on the list of suitable cells and the list of prioritized PLMN IDs. The radio access node initiates handover of the wireless device to a target cell identified by the target cell ID in the target PLMN.

Abstract: A basestation in a cellular communications network is operable to send a message to a Mobility Management Entity, relating to a suspension or resumption of a connection of a UE, wherein the message contains key renewal information. The Mobility Management Entity receives the message, and determines whether a key renewal condition is met. If the key renewal condition is met, the MME forwards a new NH, NCC pair to the base station. If a message received from the MME includes a NH, NCC pair, the basestation derives keying information using the NH, NCC pair for future use in deriving keys.

Abstract: An intermediate network node manages location data of mobile terminals in a wireless communication network and includes a processing unit and a memory, which contains instructions executable by the processing unit, whereby the network node is operative to establish connection with one or more mobility management nodes in the network, establish connection with any one of network nodes requesting location data indicating the location of at least one mobile terminal, receive a request for the location data indicating the location of the at least one mobile terminal from a requesting network node of said network nodes, obtain a set of location information indicating the location of the at least one mobile terminal from at least one of the mobility management nodes, produce the requested location data from the obtained set of location information, and provide the produced location data to the requesting network node of said network nodes.

Abstract: This disclosure is directed to a method performed by a wireless communication device, WCD. The method comprises: receiving a base station message transmitted by a base station; and determining whether the received base station message includes information indicating that Non Access Stratum, NAS, type requests are supported by the base station, and also to a method in a base station communicating with a wireless communication device, WCD, residing in a cell served by the base station, the method comprising: generating, by the base station, a message comprising system information; transmitting, by the base station, the message comprising the system information, wherein the system information comprises information indicating that Non Access Stratum, NAS, type requests are supported by the base station.

Abstract: The teachings relates to method (40) in a target network (node16) of a target core network in a first domain during handover, in the first and in a second domain, of a communication device (20) from a source radio access network to a target radio access network. The source radio access network comprises a source access node (11) and the target radio access network comprises a target access (node12). The method (40) comprises determining (41) whether the communication device (20) has access admission to the target core network; when a hand over fails generating (42) a hand over failure message comprising an information element “Independent domain HandOver”, where in the information element is set to a predefined value indicating whether the hand over failed due to lack of access rights or for other reasons than lack of access rights. The teachings also relates to devices and further to methods in source nodes.

Abstract: A radio resource control suspend operation and a radio resource control resume operation. The terminal (702, 1300) and the communication network (110) stores respective radio resource control information related to a configured connected state of the terminal (702, 1300). The method comprises performing an admission control process during the radio resource control resume operation, where the admission control process comprises a procedure for examining whether the connected state is to be resumed according to the stored radio resource configuration information or if a radio resource reconfiguration procedure is to be performed for resuming the connected state.