Telefonaktiebolaget Lm Ericsson (publ)

Hongxia Long

Jian Li

Jinyang Xie

Thorsten Lohmar

Cheng Wang

Zhongwen Zhu

Michael John Slssingar

Kun Chen

Wei Feng

Robbie Ling

Li Lv

Robert Feng

Mingkai Long

Zhichun Ma

Aurelie Zanin

Embodiments of the present disclosure provide methods and apparatuses for service discovery. The method comprises determining to initiate an authentication of a user equipment (UE); and sending an authentication request message including an encrypted or unencrypted identity of a subscriber of the UE, a serving network name and routing information of a data management node to an authentication server.

Method and apparatus for service discovery

Embodiments of the present disclosure provide methods and apparatuses for handover. A method at a first access and mobility management entity comprises obtaining at least one authentication and authorization status for a terminal device for at least one network slice of a network. The method further comprises sending the at least one authentication and authorization status for the terminal device for at least one network slice of the network to a second access and mobility management entity during a handover procedure.

Method and apparatus for handover

Methods and apparatuses for event exposure are disclosed. According to an embodiment, a network exposure function (NEF) entity receives, from an application function (AF) entity, a first request for subscribing to an event exposure of location reporting for a terminal device. The first request indicates at least one location reporting accuracy for 5th generation (5G) non-3rd generation partnership project (non-3GPP) access of the terminal device. The NEF entity sends, to a unified data management (UDM) entity, a second request for subscribing to an event exposure of location reporting for the terminal device. The second request indicates the at least one location reporting accuracy. The NEF entity receives, from an access and mobility management function (AMF) entity, location information of the terminal device and sends the location information of the terminal device to the AF entity.

Methods and apparatuses for event exposure of location reporting for a terminal device

The present disclosure provides a method () in an authentication node for tracing a User Equipment, UE. The method () includes: receiving () a tracing activation instruction to activate tracing of the UE based on an equipment identifier of the UE; obtaining () trace requirement data associated with the UE; receiving () from a network node a first signaling message containing the equipment identifier of the UE; and generating () a trace record related to the UE based on the trace requirement data in response to receiving the first signaling message.

Methods and network nodes for tracing user equipment

The present disclosure provides a method () in a Network Function (NF) node for subscription to notification of data change in a Unified Data Management (UDM) node. The method () includes: transmitting () to the UDM node a request for retrieval of a user subscription data or a request for registration with the UDM node, the request for retrieval or the request for registration including a callback Uniform Resource Identifier (URI) for use by the UDM node to notify the NF node of the data change; and receiving () from the UDM node a response to the request for retrieval or the request for registration.

Methods and nodes for notification subscription

Methods and apparatuses for short message service (SMS) delivery are disclosed. According to an embodiment, a unified data management (UDM) entity maintains a short message service (SMS) waiting context for a terminal device. The SMS waiting context is information related to a re-attempt of a mobile terminating (MT) SMS delivery from at least one SMS service center (SMS-SC) to the terminal device due to a failure of the MT SMS delivery.

Methods and apparatuses for SMS delivery

The present disclosure generally relates to interworking between core networks (CNs) and more particularly, to a method for supporting interworking between CNs and to apparatus and computer program products adapted for the same purpose. According to one aspect, an apparatus for supporting interworking between core networks (CNs) includes: a storage device configured to store a computer program comprising computer instructions; and a processor coupled to the storage device and configured to execute the computer instructions to: —a) in response to a CN registration state change for a user equipment (UE), determine whether the UE subscribes to a notification service for the CN registration state change; and —b) if subscribing to the notification service, notify the CN registration state change of a network function (NF) node performing a function associated with the CN registration state change.

Method, apparatus and computer program product for supporting interworking between core networks

Embodiments of the present disclosure relates to a method and an apparatus for a network function managing NIDD session. The method comprises: receiving (S) a request for establishing a NIDD session, wherein NIDD refers to non-internet protocol data delivery; and selecting (S) a user plane function, UPF, or a network exposure function, NEF, for establishing the NIDD session. According to embodiments of the present disclosure, the selection between the different mechanisms for NIDD session may be configured explicitly. Thus, the efficiency of managing NIDD session is improved.

Method and apparatus for network function managing NIDD session

The present disclosure provides methods for event subscription management in a network comprising a set of NF nodes, and corresponding NF nodes. The method comprises receiving a subscription request of an event for a user from an event subscriber, in response to receipt of the subscription request, transmitting, to a second network function node, a query request for querying whether the event for the user has been subscribed; and if a response to the query request from the second network function node indicates that the event for the user has been subscribed, transmitting, to the second network function node, an updating request for updating a subscriber list of the event for the user by the second network function node to include the event subscriber into the subscriber list. The present disclosure further discloses a corresponding method which comprises receiving a query request from a first network function node for querying whether an event for a user has been subscribed, in response to reception of the query request, checking whether an indicator indicating the event for the user has been subscribed has been set, and transmitting a check result to the first network function node. The present disclosure further provides corresponding computer readable medium.

Methods, network function nodes and computer readable media for event subscription management

The invention relates to a BMSC in an MBMS system with improved unicast/broadcast switching comprising a broadcast decision, counting and aggregation functions taking into account resources available for broadcasting, importance and priority of content, QoS requirements for content as well as trends in consuming of content. The invention further relates to a BMSC server and software products implementation as well as a watchdog implementation providing the improvements.

Advanced switching policies for eMBMS mood

It is presented a method for checking capacity for a multimedia session. The method comprises the steps of: receiving a capacity request for a multimedia session, the capacity request comprising a desired bandwidth, a requested Quality of Service Class Identifier, QCI, a requested time window and a desired location in terms of at least one service area, each service area being served by a plurality of radio base stations; checking whether there is sufficient capacity in each service area for the desired bandwidth and desired QCI during the desired time window of the request by reading available 0 capacity in an aggregated capacity database, the aggregated capacity database comprising available bandwidth capacity on a service area level and by reading available radio capacity on a radio resource level in a resource capacity database; and sending a response based on whether there is sufficient capacity or not.

Checking capacity for a multimedia session

It is provided a method for reporting quality of experience of receiving digital content over a cellular network. The method is performed in a wireless terminal and comprises the steps of: detecting an end of the reception of the digital content; obtaining a device identifier of the wireless terminal; generating a reception reporting message comprising the device identifier and quality of experience metrics related to the reception of the digital content; and transmitting the reception reporting message to a network node. Corresponding, wireless terminal, network node, computer programs and computer program products are also provided.

Reporting quality of experience of receiving digital content

It is presented a method for assisting access to access protected services in a cellular multimedia delivery system. The method is performed in a wireless device and comprises the steps of: obtaining a set of one or more service identifiers, each service identifier being associated with a service; for each service identified by one of the service identifiers, determining if the service is access protected by reading a configuration associated with the service, independent of any delivery method associated with the service; and transmitting, to a key manager server, a request for service keys for all services which have been determined to be access protected. A corresponding wireless device, compute program and computer program product are also presented.

Method, wireless device, computer program and computer program product for assisting access to access protected services

The invention relates to a method () in a streaming client () for handling video streaming data. The method () comprises: receiving (), decoding () and buffering () video streaming data comprising frames of image data; displaying () the frames of image data on a display () of the streaming client (); receiving () an input requesting a pause in the reception of video streaming data; selecting (), among decoded frames of image data, an optimal frame of image data; continuing () displaying frames of image data available in a buffer () of the streaming clientuntil the selected optimal frame of image data is encountered; and displaying () the selected optimal frame of image data as a still picture on the display () of the streaming client (). The invention also encompasses a streaming client (), computer program () and computer program products ().

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Kunshan, China

Hongxia Long