Abstract: There is provided mechanisms for enabling discovery of a collaborative proxy node in a 3GPP communication network. A method is performed by a network exposure function. The method comprises obtaining, from a content providing application function, a request for a cooperative performance enhancement service to be performed for application traffic between the application function and a user equipment, the cooperative performance enhancement service being performed by the cooperative performance enhancement node. The method comprises providing, upon having authorized the request, parameters as obtained in the request to a policy control function, thereby enabling discovery of the cooperative performance enhancement node.

Abstract: The embodiments herein relate to optimized procedure for Packet Flow Description (PFD) management. In one embodiment, there proposes a method (800) for managing Packet Flow Description (PFD), comprising: receiving (S801) from a Session Management Function (SFM) (201) or a User Plane Function (UPF) (302) a demand message indicating the demand for at least one PFD mle for an application; detecting (S802) the at least one PFD mle for the application; and notifying (S803) information regarding the at least one PFD rule to the SMF (201) or the UPF (302). The embodiments herein may achieve an optimized procedure for PFD Management which optimizes the delivery of PFD rules, by reducing the amount of signaling and by reducing the number of hops between the producer (AF) and the consumer (UPF).

Abstract: A technique for transmitting and using a session identifier of a session between a user plane gateway and a control plane gateway is disclosed. In a method implementation, a third gateway, GW, in a Control Plane, CP, of an Evolved Packet Core, EPC, transmits, to a fourth GW in the CP, a session identifier of a first session established between a second GW in a User Plane, UP, of the EPC and the third GW, wherein the second GW is co-located with a first GW in the UP and wherein the first GW has a communication interface to the fourth GW. The fourth GW may receive the session identifier from the third GW and provide the session identifier to the first GW. The first GW may receive a data packet, forward the data packet to the second GW and provide, to the second GW, the ession identifier. The second GW may receive the data packet from the first GW and obtain the session identifier from the first GW.

Abstract: A method for operating a policy control entity (100) in a cellular network, the method comprising: —receiving subscriber data comprising a policy with an indication that a conditional Quality-of-Service handling is to be applied to a data packet session exchanged between a user equipment of a subscriber and an application in dependence on at least one condition, the sub-scriber data further comprising a charging indication used for charging the subscriber for the data packet session in dependence on the fact whether the conditional Quality-of-Service handling has been applied to the data packet session, —generating a policy and charging rule for the data packet session, the policy and charging rule comprising the conditional Quality-of-Service handling of the data packet session in dependence on the condition and the charging of the subscriber in dependence on the fact whether the conditional Quality-of-Service handling has been applied or not, —transmitting the generated policy and charging rule to a session

Abstract: The invention relates to a method for operating a gateway wherein the method comprises to detect a downlink data packet session transmitted to the first user entity, and to amend the lifetime indicator in at least some of the data packets of the detected downlink data packet session such that the data packets for which the lifetime indicator has been amended, have reached the end of the lifetime and cannot be transmitted further when arriving at the first user entity.

Abstract: The invention relates to a method for operating a user equipment (100) requesting a data packet flow from an application entity transmitted through a cellular network to the user equipment, comprising: —transmitting (S20) a first request to a translating entity (700) configured to translate a name of the application entity providing the data packet flow to an address of the application entity through which the application entity can be reached, the first request requesting an identification of a user plane entity (200) configured to handle the data packet flow in the cellular network, —receiving (S24) a response to the first request, the response comprising a user plane identifier identifying the user plane entity (200), —transmitting (S26) a policy request to the identified user plane entity (200), the policy request comprising a flow identifier allowing an identification of the data packet flow in the cellular network, and policy information indicating a policy to be applied to the data packet flow in the c

Abstract: Methods and apparatus are provided to enable a consumer network function (consumer NF) to discover instances of a NWDAF 90 co-located with NFs in the 5GC 30 of a communication network 10. Existing procedures and messages between NFs are leveraged to distribute lists of NWDAFs 90 co-located with a NF, such as a UPF 35, AMF 40 or SMF 45. A NF can provide a list of NWDAF instances for a particular UE 15 that are co-located with either the same NF or a separate producer NF when the communication procedure for the UE 15 is invoked. Over time, the consumer NFs build a database associating the co-located NWDAFs in other NFs with corresponding UEs 15 served by the consumer NF. When the consumer NF needs analytic data for one or more UEs 15 served by the consumer NF, the consumer NF can use a UE ID to look up the co-located NWDAFs for the UE 15 and subscribe with the co-located NWDAF instances to receive analytics data for the UE 15.

Abstract: A method performed by a gateway node for handling application data traffic of a session between a UE and an application server in a wireless communications network is provided. Upon establishing the session, the gateway node obtains from a policy node, an identity identifying one or more rules provisioned for the UE. The identity is associated with the session and with a UP based API to be used for the session. The gateway node receives through the UP based API, a message from the UE. The message comprises the identity and a flow identifier identifying the application data traffic related to the identity. The message requests the one or more rules to be enforced by the gateway node. Upon detecting application data traffic associated with the flow identifier, the gateway node enforces the one or more rules, according to the obtained identity, for the detected application data traffic between the UE and the application server.

Abstract: A method of enabling functionality at a User Plane Function, UPF, by a Session Management Function, SMF, in a telecommunication network. The method includes receiving, by the UPF, a session creation/modification message for creating/modifying a session between the UPF and the SMF, wherein the session creation/modification message includes a session functionality indication for indicating functionality to be enabled for said session, and enabling, by the UPF, the functionality during the session between said UPF and the SMF.

Abstract: A method of classifying traffic data in a network comprises at a Network Data Analytics Function (NWDAF), receiving information relating to traffic data with a known classification from one or more first network functions, and developing a model for classifying future traffic data based on the information relating to the traffic data with a known classification. The method also involves at a second network function, storing a representation of the developed model. The method also involves at a third network function, receiving the representation of the developed model from the second network function, and installing the representation of the developed model at a fourth network function. The method also involves at the fourth network function, classifying traffic data using the developed model.

Abstract: The embodiments herein relate to Sx protocol extension to support node PDR. In one embodiment, there proposes a method (500) in a first network node (301) configured as control plane function (CPF). The first network node (301) is coupled to a second network node (302) configured as user plane function (UPF) via an Sx interface. The method (500) comprising transmitting (S501) a message associated with a Packet Detection Rule (PDR) to the second network node (302) via the Sx interface, wherein the PDR is applicable to more than one Sx session. With embodiments herein, the CPF-UPF signaling throughput can be minimized significantly, and the memory footprint per Sx session can be decreased.

Abstract: A method of detecting Quick User Datagram Protocol Internet Connections, QUIC, traffic in a telecommunication network between a User Equipment, UE, and a Content Provider, CP, wherein said UE has an established application session with said CP, for a particular application, using QUIC as transport protocol, wherein said method comprises the steps of receiving, by a User Plane Function, UPF, comprised by said telecommunication network, from said CP, a list of connection identifiers that identify said established application session between said UE and said CP, receiving, by said UPF, a QUIC packet comprising a connection identifier, detecting, by said UPF, said QUIC traffic by determining that said connection identifier of said received QUIC packet is comprised by said list of connection identifiers.

Abstract: The invention relates to a method, for controlling at least one path in a multipath environment by a path control entity, wherein the at least one one path is used for transmitting an encrypted video stream comprising a sequence of video segments. The method comprises the following steps: estimating a resolution used in the video stream based on the video segments, and determining that the resolution used in the video stream has changed during the transmission. When it is determined that the resolution used in the video stream has changed, an adaptation of a number of the at least one path used for transmitting the video stream in the multipath configuration is initiated based on the determined change of the resolution.

Abstract: The embodiments herein relate to a method performed by a PCF node (101) for enabling user plane traffic classification in a communications system (100) supporting CUPS with multiple UPF nodes (105). The PCF node receives, from a SMF node (103), a policy request for a UE (114). The PCF node (101) obtains, from a UDR (108), an indicator indicating COMU for the UE (114), and transmits, to the SMF node (103), a policy response comprising the indicator indicating COMU.

Abstract: A technique for dynamically classifying and re-classifying a data packet flow on a user plane of a core network domain is described. According to an apparatus aspect, a device is provided for dynamically classifying and re-classifying a data packet flow, wherein the device is configured to classify and re-classify the data packet flow using packet detection rules (PDRs) and wherein each PDR is associated with at least one action to be applied to data packets matching the PDR. The device is configured to receive one or more first data packets of a data packet flow, to determine that the received one or more first data packets match a first PDR to classify the data packet flow according to the first PDR, and to trigger application of at least one first action associated with the first PDR to the one or more first packets.

Abstract: Methods and apparatus for traffic enhancement to apply to an application, to be delivered using a QUIC session, between a wireless device and a server. A request to activate a policy for the application between the wireless device and the server is received from the wireless device, the request including an application identifier and an indication to request an enhancement function. In response to the request to activate the policy, an authorization of traffic enhancement with information of a proxy node is transmitted to the wireless device to provide the enhancement function upon the network node identifying the proxy node.

Abstract: There is provided mechanisms for enabling discovery of a collaborative proxy node in a 3GPP communication network. A method is performed by a network exposure function. The method comprises obtaining, from a content providing application function, a request for a cooperative performance enhancement service to be performed for application traffic between the application function and a user equipment, the cooperative performance enhancement service being performed by the cooperative performance enhancement node. The method comprises providing, upon having authorized the request, parameters as obtained in the request to a policy control function, thereby enabling discovery of the cooperative performance enhancement node.

Abstract: A Policy Control Function, PCF, for use in a 5G core network, is configured to allow a consumer to retrieve from the PCF subscriber session information and Application Detection and Control rules relating to a subscriber session. Specifically, the PCF is configured to: receive (303) a request from a Session Management Function, SMF, for session management policies applying to the subscriber session; retrieve (305) policy data from a Unified Data Repository, UDR; and, based on the retrieved policy data, generate said Application Detection and Control rules relating to the subscriber session, and send (307) said Application Detection and Control rules to the TDF, thereby allowing the TDF to act as the consumer.

Abstract: A method, an operator network (101) and nodes (120, 140, 160) for managing trafficare disclosed. The network exposure node (160) receives (A010) a Packet Flow Description (PFD) rule for a server application (190). The PFD rule comprises one or more protocol parameters for classification of traffic using a protocol related to said one or more protocol parameters. The one or more protocol parameters comprise for example an indication relating to common names (CNS), an indication relating to a domain name system (DNS) domain name, a server name indication (SNI), an indication relating to fraud prevention, an indication relating to a server IP address. The network exposure node (160)transmits (A020) the PFD rule to the session node (140), which transmits (A040), towards the user data node (120), a management request comprising the PFD rule. The user data node (120) receives (A080), from the client application (115), traffic destined to the server application (190).

Abstract: An aspect provides a method by user plane function (UPF) in a core network (CN) of a communication network for registering the UPF at a network repository function (NRF) of the CN. The UPF is to selectively route uplink data traffic in one or more data sessions from a user equipment (UE) to one of a plurality of session anchor network functions (NFs). The method by the UPF comprises sending (1701) a registration request to the NRF. The registration request comprises registration information comprising an indication of a type of filter supported by the UPF to selectively route uplink data traffic from a UE to a particular session anchor NF. The type of filter relates to an application identity; and an indication of a value for the indicated type of filter.