Abstract: There is provided an apparatus configured to receive, from a first network entity associated with a first domain in a communication network, a request to communicate; determine a second network entity to which to send the request; determine that the second network entity is associated with a second domain in the communication network; and enforce at least one access policy for routing the request to the network entity, wherein the apparatus is a first service communication proxy trusted in both the first and second domains.

Abstract: There are provided measures for optimization of network function profile administration and registration. Such measures exemplarily comprise, at a network repository function entity, receiving, from a control entity, network entity profile template information, storing said network entity profile template information, wherein said network entity profile template information comprises a network entity profile template including an identifier of said network entity profile template and a profile content of said network entity profile template, said profile content including at least one profile attribute, receiving, from a network entity, a network entity registration request comprising said identifier of said network entity profile template, and generating a network entity profile for said network entity based on said at least one profile attribute.

Abstract: Systems, methods, apparatuses, and computer program products for securing user plane (e.g., MB2-U) interface between a group communication service application server (GCS AS) and Broadcast Multicast Service Center (BM-SC) are provided. One method may include transmitting a message via a control plane, to an application server, indicating whether to establish a security association on a user plane in an interface between the GCS AS and the BM-SC. The method may also include providing, to the GCS AS, a target internet protocol (IP) address and possible port as a target for the security association.

Abstract: Systems, methods, apparatuses, and computer program products for implementing a physical service communication proxy domain A method may include interconnecting a first network element with one or more service communication proxy domains, each associated with one or several internet protocol addresses or fully qualified domain names used for the interconnection. The method may also include registering the first network element with a network repository function by sending a service operation to the network repository function. Further, the service operation may include profile information of the first network element. In addition, the profile information may include one or more service communication proxy domains, each associated with one or several internet protocol addresses or fully qualified domain names.

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: Systems, methods, apparatuses, and computer program products for UPF control with coexistence of policy control and packet filters dynamically generated at the SMF. For example, if the SMF obtains an event subscription with traffic descriptors from another entity, and if there is no installed PDR with the same traffic descriptor, the SMF may construct a PDR with an action according to the subscribed event. The SMF may configure the UPF with the constructed PDR. In certain embodiments, to construct the PDR, the SMF may copy the PDR that would have previously matched the incoming traffic described by the traffic descriptor in the notification subscription, and associates the PDR with a higher priority, the traffic descriptor and a notification action according to the subscribed event. To configure the UPF, the SMF may provide the PDR with the higher priority, the received traffic descriptor, and the notification action, according to some embodiments.

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: Systems, methods, apparatuses, and computer program products for event subscription notification(s) are provided. One method may include providing, from a first network entity, a policy control request trigger about subscriptions for event exposure to a second network entity. The method may also include receiving a notification, from the second network entity, about the policy control request trigger, and installing or updating at least one policy and charging control (PCC) rule based on the information received in the notification from the second network entity.

Abstract: Methods and apparatus, including computer program products, are provided for transport method selection of asynchronous notifications. In some example embodiments, there may be provided a method that includes sending, by a client, a hypertext transfer protocol request for at least one asynchronous notification to be sent by a server to the client, the hypertext transfer protocol request including at least one proposed transport method for carrying the at least one asynchronous notification; determining, by the client, whether a first transport method selected by the server from the at least one proposed transport method is successfully established; and when the determination is that the first transport method is not established successfully, sending, by the client, another hypertext transfer protocol request to the server, the other hypertext transfer protocol request including at least one other proposed transport method. Related systems, methods, and articles of manufacture are also described.

Abstract: Systems, methods, apparatuses, and computer program products for discovering a network function (NF) acting as a network function service consumer are provided. One method may include, when a NF service consumer subscribes to notifications from a NF service producer, receiving, by the NF service producer, subscription information including a name of a consumer service of the NF service consumer that subscribes to notifications of the NF service producer. The receiving of the subscription information with the name of the consumer service allows the NF service producer to discover a corresponding NF service from an alternative NF instance within a NF set.

Abstract: It is provided a method, comprising detecting if a first signaling indicating the desire to send plural first media streams including an audio stream is received from a sender; informing the resource function processor that at least a subgroup of the first media streams including the audio stream originates from the sender if the first signaling is received from the sender; instructing a resource function processor to perform voice activity detection on the audio stream if the first signaling is received from the sender; instructing the resource function processor to apply a policy on the subgroup of the first media streams, wherein the policy includes passing or discarding at least some of the first media streams of the subgroup and/or selecting destinations for the media streams depending on a result of the voice activity detection on the audio stream.

Abstract: Methods and apparatus, including computer program products, are provided for handovers including fallbacks. In some example embodiments, there is provided an apparatus comprising at least one processor and at least one memory including program code which when executed causes the apparatus to at least: receive, during creation or modification of a bearer, a message including a handover threshold based at least in part on a type of codec for the bearer; receive, from a user equipment, a measurement report providing an indication of a condition of the bearer and/or perform a measurement, by the base station, providing the indication of the condition of the bearer; determine, based at least on the handover threshold, whether to initiate a handover. Related apparatus, systems, methods, and articles are also described.

Abstract: Various communication systems may benefit from the transfer of sender or receiver communication parameters. For example, such transfer of sender communication parameters may be useful in connection with single radio voice call continuity (SRVCC) and reverse SRVCC. A method can include receiving, at an intermediate entity from a first entity, signaling including at least one parameter describing a user plane payload format that the first entity wants to receive and an encoding that the first entity wants to receive. The method can also include forwarding, by the intermediate entity, the at least one parameter in signaling to a second entity.

Abstract: There are disclosed measures of network entity selection, for example including furnishing an identity of a network entity being pre-selected by a first network apparatus, and providing verification information for said pre-selected network entity identity, enabling to verify whether the pre-selected network entity identity is applicable for network entity selection at a second network apparatus.

Abstract: An apparatus and a method are provided by which a packet is received, a service identification in the packet is detected, it is decided based on the detected service identification whether a tunnel protocol extension header is to be generated or not, and, when the tunnel protocol extension header is to be generated, the tunnel protocol extension header is generated, the received packet is encapsulated with the generated tunnel protocol extension header and the encapsulated packet is forwarded.

Abstract: Enhanced media plane optimization in web real time communication scenarios There are provided measures for enhanced media plane optimization in web real time communication scenarios. Such measures exemplarily comprise receiving a first session description message comprising at least one media line indicative of multiple media streams transportable in a same stream control association, and generating, based on said first session description message, a second session description message indicative of a possibility for a separate transport of said multiple media streams and of a possibility for a joint transport of at least some media streams of said multiple media streams in the same stream control association.

Abstract: A method establishes a video telephone connection in a data network that includes a telephone network and an IP network based on the internet protocol. The expression video telephony connection is to be taken generally in this context and encompasses multimedia telephony in addition to pure video telephony.

Abstract: There are disclosed measures of network entity selection, for example including furnishing an identity of a network entity being pre-selected by a first network apparatus, and providing verification information for said pre-selected network entity identity, enabling to verify whether the pre-selected network entity identity is applicable for network entity selection at a second network apparatus.

Abstract: An apparatus and a method are provided by which a packet is received, a service identification in the packet is detected, it is decided based on the detected service identification whether a tunnel protocol extension header is to be generated or not, and, when the tunnel protocol extension header is to be generated, the tunnel protocol extension header is generated, the received packet is encapsulated with the generated tunnel protocol extension header and the encapsulated packet is forwarded.