Telefonaktiebolaget Lm Ericsson (publ)

Marcus Ihlar

Robert Bengt Skog

Miguel Angel Muñoz De La Torre Alonso

Zaheduzzaman Sarker

Thorsten Lohmar

Veronica Sanchez Vega

Ala Nazari

John Orre

Anders E Eriksson

Maria Luisa Mas Rosique

Börje Ohlman

Szilveszter Nádas

Attila Mihály

Oscar Zee

Göran Eriksson

Magnus Westerlund

Ann-Christine Eriksson

Daniel Lindström

Karl-Åke Persson

Deyang Chen

Magnus Magnusson

Adeel Mohammad Malik

Linus Sunde

Simone Ferlin

Mirja Kuehlewind

Ruizhao Wu

Johan Orre

Karl-ÅKe Persson

A method by a virtual network device in a virtualized network to support shared caching in the virtualized network. The method includes receiving a request message for content, determining whether the content is available in a shared virtual cache, wherein the shared virtual cache is shared by a plurality of virtual network devices in the virtualized network, obtaining the content from an upstream network device in response to a determination that the content is not available in the shared virtual cache, storing the content in the shared virtual cache to make the content available to the plurality of virtual network devices, and sending a response message containing the content towards an originator of the request message for the content.

Shared caching in a virtualized network

Methods and apparatus are provided for content delivery. In one aspect, method of receiving content in a device comprises sending a request for the content to a first network node, receiving a redirection instruction from the first network node, wherein the redirection instruction indicates a content delivery network and indicates a data transfer policy, sending a request for the content to the content delivery network, wherein the request indicates the data transfer policy, and receiving data associated with the content from the content delivery network according to the data transfer policy.

Methods and apparatus for content delivery

A method of enabling the core network to determine the RAT type in a dual connection non-standalone configuration. The RAT type is either embedded in the GTP-U header by the RAN which is then extracted by the PGW-U or it is derived by the PGW-U by using a Reinforcement Language Agent activated by the SPR, through the PCRF and the PGW-C.

Methods of and devices for enabling a core network of a mobile communication network to perform mobility actions based on a radio access technology, RAT, with which a user equipment, UE, connects to said core network

Method and device(s) for supporting estimation of latency over a communication path in a communication network between a data flow shaping node, providing a data flow in bursts towards a data flow target node, and a probe node. The devices(s) initiate to transmit, by the data flow shaping node, a sample burst being a burst of said bursts that differs in a predefined manner from preceding and subsequent bursts so that the data flow target node in response to the sample burst transmits a certain pattern of acknowledgement packets that differs compared to patterns of acknowledgement packets transmitted by the data flow target node in response to said preceding and subsequent bursts. The device(s) initiates to identify, by the probe node, receipt of potential acknowledgement packets according to said certain pattern.

Methods and arrangements for supporting estimation of latency over a communication path in a communication network

A method for deactivating Server Name Indication, SNI, encryption in a telecommunication network, wherein said telecommunication network comprises a Domain Name System, DNS, server, said method comprising the steps of receiving, by said DNS server, from a User Equipment, UE, a DNS query comprising a Domain Name to be converted to an Internet Protocol, IP, address, determining, by said DNS server, that SNI encryption is to be deactivated for subsequent traffic associated with said Domain Name, forwarding, by said DNS server, said DNS query to an external DNS server, wherein said DNS query comprises said Domain Name and a request for deactivating SNI encryption, receiving, by said DNS server, from said external DNS server, a DNS answer, wherein said DNS answer comprises said converted IP address and wherein said DNS answer is free from encryption keys for encrypting SNI and forwarding, by said DNS server, said DNS answer comprising said converted IP address to said UE, wherein said DNS answer is free from encryption keys such that said UE is not able to encrypt said SNI in said subsequent traffic.

Methods and nodes for deactivating server name indication, SNI, encryption in a telecommunication network

The present disclosure relates to techniques for shaping video data traffic in a packet switched communications transport network. In some embodiments, a device determines a cell load level associated with a base station node that is representative of a data traffic load of a cell of the base station node. The device sets, based at least on the determined cell load level associated with the base station, one or more burst transmission parameters for video data transmitted by a traffic shaping node to the base station node. The device transmits video data to the base station node using the set one or more burst transmission parameters, wherein transmitting video data occurs in one or more burst transmissions that each include a plurality of packets that include video data.

Techniques for adaptive bitrate video traffic shaping

Method and device(s) for supporting estimation of latency over a communication path in a communication network between a data flow shaping node and a probe node. The communication path comprising a data flow target node configured to receive a data flow from a data flow source node via the communication path. The data flow shaping node being configured to provide the data flow in bursts towards the data flow target node. The device(s) initiate to identify a suitable burst interval being a burst interval for which the probe node receives no potential acknowledgement packets during a predefined quiescent period, associated with the suitable burst interval, that covers an end portion of the suitable burst interval and/or a begin portion of a subsequent burst interval.

A technique for handling data traffic in a core network domain of a communication network is described. An apparatus comprised by the technique is configured to be located in the core network domain and to receive data traffic sent under control of a transport layer protocol that is configured to apply a congestion control algorithm, CCA. The apparatus is further configured to analyze the data traffic to obtain a data traffic analyzation result, to obtain, based on the analyzation result, CCA information about the CCA that can be or is applied by the transport layer protocol, and to perform a traffic handling action for the data traffic taking into account the obtained CCA information.

Technique for controlling and performing data traffic handling in a core network domain

Methods and device(s) () for managing Round Trip Time, RTT, associated with provision of a data flow () from a server device (), via a multi-access communication network (), to a client device (). Said device(s) () being communicatively connected to the multi-access communication network () that is configured to provide the data flow () to the client device () using a resource of the multi-access communication network () that is shared by multiple devices (--). The device(s) () initiates, in response to identification that the data flow () belongs to a certain type, introduction of an artificial delay in the RTT.

Methods and arrangements for managing round trip time associated with provision of a data flow via a multi-access communication network

A proxy server () receives, from a sending device, a packet intended for a receiving device (). The proxy sewer () sends, to the receiving device (), a promise frame () indicating that the proxy server () will deliver the packet to the receiving device () later. The receiving device () receives the promise frame () from the proxy server (), and sends an acknowledgement of the packet to the sending device via the proxy sewer (). The proxy server () forwards the acknowledgement of the packet from the receiving device () to the sending device, and delivers the packet to the receiving device () after having forwarded the acknowledgement to the sending device. The receiving device () receives the packet from the proxy server () after having sent the acknowledgement of the packet to the sending device via the proxy server ().

Packet acknowledgment techniques for improved network traffic management

A network node for user data traffic handling (UPF), receives () traffic for an application, wherein the traffic is to be sent to a logical server associated with the application, wherein the logical server resides on a network server (), and wherein the application has a corresponding application function (AF). On detecting () that the received traffic includes an encrypted server name indication such that the associated logical server cannot be identified, the network node requests () from the corresponding application function information identifying the application. In response to receiving () information identifying said application, the network node subsequently handles the traffic () based on the identified application.

User data traffic handling

Methods and apparatus are provided for content delivery. In one aspect, a method in a traffic monitor in a communications network comprises responsive to a notification that content is being delivered to a device from a content delivery network according to a data transfer policy, the notification including an indication of the data transfer policy, monitoring delivery of the content from the content delivery network to the device and, responsive to a detection that the delivery of the content violates the data transfer policy, performing a notification action.

Methods and apparatus for monitoring content delivery

A network assistance node (), a wireless device (), a network node (), an opposite node () and methods therein, for handling communication of data between the wireless device and the opposite node over a radio bearer in a cell. When detecting () that a potential data class is requested which tolerates a certain delay for delivering the data, the network assistance node obtains () from the network node availability of a potential data bearer dedicated for the potential data class, which availability is dependent on whether a cost related parameter associated with the wireless device fulfils a threshold condition. The network assistance node then reports () availability of the potential data class to the wireless device and the opposite node, indicating that the potential data bearer is available for data of the potential data class.

Methods, network assistance node, wireless device, network node and opposite node, for handling data communication between the wireless device and the opposite node

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.

Discovery of a collaborative proxy node in a 3GPP communication network

Methods and apparatus are provided for content delivery. In one aspect, a method in a device of receiving Adaptive Bit Rate (ABR) content comprises receiving an ABR manifest associated with the content, the ABR manifest describing segments of content and specifying a plurality of policies and respective associated data transfer rules, receiving an indication identifying one of the policies, and requesting segments of the content from a content delivery network in accordance with the content delivery rules associated with the policy identified by the indication.

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Älvsjö, Sweden

Marcus Ihlar