Abstract: Computer program products, methods, and apparatuses, for providing and implementing the efficient detection of network component failures and restart conditions are described.

Abstract: A method, apparatus, and computer program product provide for network communication error originator identification with a header, such as an HTTP header. In the context of a method, the method causes a service request from a NF client to be transmitted to a NF server via one or more intermediary network proxy functions. The method receives a service response with error information identifying the type or identity of the originator of the error response or identifying the type or identity of network proxy function having relayed the error response. The method may also be enabled to redirect a service request to a different NF server or a different network proxy function, and to enable the NF client to determine whether to redirect the request to a different NF server or a different network proxy function.

Abstract: Embodiments of the present disclosure relate to methods, apparatuses and computer readable storage media for hop-by-hop security. A proposed method comprises receiving, at a first apparatus and from a second apparatus associated with a first network function, a message directed from the first network function to a second network function, the message comprising a first signature and network function information, the network function information at least comprising identification information of the first network function; in accordance with a successful validation of the first signature, updating the message with a second signature specific to a service communication proxy implemented by the first apparatus; and transmitting the updated message to a third apparatus associated with the second network function, the updated message comprising at least the second signature and the network function information.

Abstract: Systems, methods, apparatuses, and computer program products for load and/or overload control in 5GC SBA are provided. One method may include transmitting, from a network function (NF) service consumer, overload control information (OCI) comprising scope information to a network function (NF) service producer or service communication proxy (SCP). The scope information may include at least one of: scope set to a notification uniform resource identifier (URI), or scope set to one of network function (NF) service instance, network function (NF) service set, network function (NF) instance, or network function (NF) set, and optionally a service name.

Abstract: There is provided an apparatus that comprises means for receiving a request from a second network function including information relating to the second network function, determining, based on the information relating to the second network function, at least one proxy function and in response to the request, providing to the second network function information relating to the at least one determined proxy function.

Abstract: There is provided an apparatus with means for issuing (S601) a request message to a first proxy function for forwarding to a network server. The means are further configured for receiving (S603) a response message from the first proxy function. The response message comprises information about a signalling capacity of the first proxy function.

Abstract: It is provided a method, including monitoring if a trigger to start a transaction for a user equipment or for a user is received; requesting, from a data layer and based on an identification of the user equipment or the user, respectively, an identifier of a set of one or more nodes when the trigger is received; forwarding the trigger to at least one node among the one or more nodes of the set.

Abstract: It is provided a method, comprising monitoring if a received request comprises a notification indication, wherein the notification indication indicates that the request is one of a callback request and a notification request; handling the request as a service request if the request does not comprise the notification indication; handling the request as a notification or callback request if the request comprises the notification indication, wherein the handling as a service request is different from the handling as a notification or callback request.

Abstract: A mobile network entity, such as Mobility Management Entity MME, is for the support of Mobile-Terminated MT Data Delivery via an interface such as the T6a interface between a Service Capability Exposure Function SCEF and the mobile network entity, towards a User Equipment UE using extended idle mode DRX served by the mobile network entity is configured to receive from the SCEF a MT Data Delivery Request including information indicating a time frame within which a MT Data Delivery Response is awaited by the SCEF.

Abstract: Preference information is received at a network repository function from a first network function, the preference information indicating one or more optional preferences for a respective second network function or network function service. Information is provided to the first network function about one or more second network functions or network function services, the one or more second network functions or network function services being selected taking into account the preference information.

Abstract: According to an example aspect of the present invention, there is provided a method, comprising: receiving a first message from a service-consuming second network entity in a second mobile network for a service-providing first network entity in a first mobile network, the first message comprising a first callback resource identifier, generating a second callback resource identifier on the basis of the first callback resource identifier, wherein the second callback resource identifier comprises a domain name of a security edge node in the first network, and transferring a callback message from the first network entity to the security edge node, the callback message comprising the second callback resource identifier.

Abstract: Methods and apparatus, including computer program products, are provided for packet forwarding control protocol (PFCP) message bundling. In an example embodiment, an apparatus comprises at least one processor and at least one memory including computer program code. In some embodiments, apparatus can be configured to: determine that more than one control protocol messages should be sent between a control plane entity and a user plane entity or said user plane entity and said control plane entity; determine the control plane entity and the user plane entity support sending and receiving a single datagram carrying more than one control protocol messages; extend a header of each control protocol message to indicate that the datagram is carrying more than one control protocol messages; combine one or more message types and respective message elements of the more than one control protocol messages into the single datagram; and cause sending said single datagram.

Abstract: Methods, apparatuses and computer program products are described that facilitate sending and receiving notifications related to user equipment being added to or leaving a multicast group or multicast stream in a network. A method can include receiving, from a session controller, a request for reporting when protocol data unit (PDU) sessions are added to/removed from a downlink replication tree associated with an internet protocol multicast flow; determining whether said PDU session has been added to or removed from the downlink replication tree associated with the internet protocol multicast flow; and, in response to said determining, transmitting a message to a session management function indicative of that said PDU session has been added to or removed from said downlink replication tree. The message can include an internet protocol address associated with a source of said added or removed multicast flow and/or the multicast destination of said internet protocol multicast flow.

Abstract: An embodiment of the invention is a User Equipment UE, configured to: get ePDG selection information configured by the UE's HPLMN, said ePDG selection information including a list of PLMNs with an indication of whether the selection of an ePDG in a PLMN is preferred or mandatory or non-preferred, perform selection of an ePDG operated by a PLMN of a country the UE is located in, referred to as local PLMN, which has roaming agreement with the UE's HPLMN for untrusted WLAN access to EPC, based on said list of PLMNs configured in said ePDG selection information, and on a list of MCCs of said country and/or a list of local PLMNs.

Abstract: According to certain embodiments, a method and apparatus may include performing, by a first network entity, at least one benchmarking procedure of at least one network hop delay per at least one transmit resource towards at least one peer network node identified by at least one internet protocol destination address. The method and apparatus may further include deriving, by the first network entity, a second table, by, for each peer node associated with an internet protocol destination address, determining at least one existing configured mapping of at least one network instance into a transport resource Ti per internet protocol destination address. The method and apparatus may further include updating, by the first network entity, the first table and the second table for each internet protocol destination address and transmitting the updated second table to the second network entity.

Abstract: Embodiments of the invention include an entity such as TWAN entity, respectively ePDG, capable of serving a User Equipment UE at Trusted, respectively Untrusted, WLAN access to a packet Core Network such as EPC, said entity configured to: —perform DCN selection at said Trusted, respectively Untrustcd, WLAN access of said UE to said packet Core Network such as EPC.

Abstract: In an embodiment, there is provided a method for optimization of network signalling load and/or User Equipment power consumption in a packet mobile system wherein an User Equipment UE has access to a network comprising a Core Network CN accessed by a Radio Access Network RAN, a method wherein CN assistance information is provided by said CN to said RAN for an UE, said CN assistance information including information determined in said CN based on a learning by said CN of a traffic pattern and/or a mobility pattern of said UE, and said CN assistance information is used in said RAN to adjust RAN parameters enabling to control transitions between idle and connected state and/or power consumption in connected state for said UE.

Abstract: A mobile network entity configured to upon reception of a TFR message forwarding a SM towards a UE in extended idle mode DRX, including a SM-Delivery-Timer/Start-Time indicating the time used in the SM gateway SMSC to supervise the receipt of the TFR message, keep the SM for a specified time if the UE is expected to become reachable before the expiration of the timer, and page the UE. If the UE responds to this paging during this specified time, the mobile network entity configured to deliver the SM to the UE, and if the UE does not respond to this paging during this specified time, or if the UE is not expected to respond within this time, send towards a SM gateway SMSC a delivery failure and set a flag to record that the UE is currently not reachable.

Abstract: In an embodiment, a method is provided for overload control for Trusted WLAN access to EPC, comprising: when rejecting a request for an UE in single connection mode (SCM) for an authenticated and authorized user, the network signalling a back-off time to the UE for the requested APN when congestion control is active for the APN, upon reception of the back-off time, the UE not initiating new request for the congested APN, for the duration of the back-off time.

Abstract: An embodiment of the invention is a User Equipment UE, configured to: get ePDG selection information configured by the UE's HPLMN, said ePDG selection information including a list of PLMNs with an indication of whether the selection of an ePDG in a PLMN is preferred or mandatory or non-preferred, perform selection of an ePDG operated by a PLMN of a country the UE is located in, referred to as local PLMN, which has roaming agreement with the UE's HPLMN for untrusted WLAN access to EPC, based on said list of PLMNs configured in said ePDG selection information, and on a list of MCCs of said country and/or a list of local PLMNs.