An example system includes a service proxy controller and a number of service proxy workers. The service proxy controller is configured for providing routing policies for a telecommunications network core. The telecommunications network core includes network functions communicating using a service-based architecture. Each service proxy worker is configured for routing telecommunications network core messages between a respective subset of the network functions by consuming the routing policies from the service proxy controller and enforcing the routing policies from the service proxy controller. Each service proxy worker is configured for providing network status reports to the service proxy controller based on the telecommunications network core messages.

Methods, systems, and computer readable media for providing a service proxy function in a telecommunications network core using a service-based architecture

Various examples pertaining to reflective quality of service (QoS) control in wireless communications are described. A user equipment (UE) receives from a wireless network control signaling that activates support of reflective QoS by the UE. The UE determines whether a predefined condition exists. The UE then indicates to the wireless network a change in a capability of the UE to support the reflective QoS responsive to the determining indicating that the predefined condition exists. When the UE receives from the wireless network control signaling that activates support of reflective QoS by the UE, the UE deletes one or more UE-derived QoS rules among a plurality of active UE-derived QoS rules each with a respective reflective QoS (RQ) timer running.

Reflective QoS control in wireless communications

Methods, systems, and computer readable media for network function (NF) service instance wide egress rate limiting include a process performed at a service communication proxy (SCP) and at a rate limiting policer. The process includes receiving service requests from consumer NFs and forwarding the service requests to SCP worker instances. The process further includes, at the SCP worker instances, requesting, from the rate limiting policer, which is separate from the SCP worker instances, producer NF service instance capacity for handling the service requests. The process includes, at the rate limiting policer, performing producer NF service instance wide egress rate limiting between the SCP worker instances and producer NF instances by granting or denying requests for producer NF service instance capacity from the SCP worker instances such that combined egress traffic from the SCP worker instances does not exceed rate capacities of the producer NF service instances.

Methods, systems, and computer readable media for producer network function (NF) service instance wide egress rate limiting at service communication proxy (SCP)

There is provided mechanisms for indicating evolved packet system (EPS) fallback capability. A method is performed by a user equipment (UE). The method comprises providing, towards a call session control function (CSCF), call status information with respect to EPS fallback capability of the UE. There is also provided a UE configured to perform such a method.

Indication of evolved packet system fallback capability

There is provided a method and apparatus for data transport control between wireless network systems, the method comprises: determining, by a first node, whether a predetermined condition is satisfied; and transmitting, by the first node, at least one of data transport command information and user equipment access information when the predetermined condition is satisfied

Method and apparatus for data transport control between wireless network systems

Apparatuses, methods, and systems are disclosed for establishing an IP multimedia subsystem session. One method includes receiving, at a first network entity from a user device, a first session initiation protocol message comprising a session description protocol, wherein the first session initiation protocol message is used to establish an internet protocol multimedia subsystem session for an application. The method includes transmitting, from the first network entity to a second network entity, a first message comprising an internet protocol address and an identifier for the application. The method includes receiving, at the first network entity from the second network entity, a status of a radio access technology of the user device, wherein the status of the radio access technology of the user device is received by the second network entity from a third network entity.

Establishing an ip multimedia subsystem session

Apparatuses, methods, and systems are disclosed for selecting a transport layer protocol for SIP messages. One apparatus 600 includes a processor 605 and a transceiver 625 that receives 805 a SIP message from a remote unit, the SIP message comprising a first request to initiate a session for an IMS MMTEL. The processor 605 determines 810 that the SIP message is communicated using TCP as a transport layer protocol and forwards 815 the first request to a network entity, wherein the first request is sent using UDP as the transport layer protocol.

Transport layer protocol for sip message

Apparatuses, methods, and systems are disclosed for determining what type of network connection is to be established from the operating system (OS) specific connection capability. One apparatus (300)includes a processor (305) and a transceiver (325) that communicates with a mobile communication network over one or more access networks. The processor (305) receives (805) a first request to establish the network connection, wherein the first request includes the first connection capability, and the first connection capability is an OS-specific parameter indicating a preferred connection characteristic. The processor (305) selects (810) a routing policy rule based on the first connection capability and sends (815) (via the transceiver (325)) a second request to the mobile communication network to establish a first type of network connection, wherein the first type of network connection is indicated by the selected routing policy rule.

Determining a type of network connection from an os-specific connection capability

Apparatuses, methods, and systems are disclosed for establishing a connection with a dual registered device. One method (1300) includes receiving (1302) a first request to establish an internet protocol multimedia subsystem session with a first device, wherein the first device is dual registered to: a first network access supporting 5G core network connectivity; and a second network access supporting evolved packet core network connectivity and circuit switched network connectivity, wherein the first device has connectivity to an internet protocol multimedia subsystem via either the first network access or the second network access. The method (1300) includes determining (1304) first information corresponding to a network access connectivity selected from the first network access and the second network access through which the first device has internet protocol connectivity with the internet protocol multimedia subsystem. The method (1300) includes transmitting (1306) a second request to a first network function to retrieve second information.

Establishing a connection with a dual registered device

Apparatuses, methods, and systems are disclosed for deriving an operating system identity. One method includes determining, at a remote unit, a type of operating system used by the remote unit. The method includes determining a domain name corresponding to the type of operating system. The method includes deriving an operating system identity by applying a hash function to the domain name and a predetermined value. The method includes transmitting a first message to a mobile communication network. In such embodiments, the first message includes the operating system identity.

Atarius Roozbeh

Papers

Establishing an ip multimedia subsystem session

Transport layer protocol for sip message

Determining a type of network connection from an os-specific connection capability

Establishing a connection with a dual registered device

Deriving an operating system identity