Nokia Technologies Oy

Nokia Solutions and Networks Oy

Gerald Kunzmann

Saurabh Khare

Chaitanya Aggarwal

Anja Jerichow

Yannick Lair

Dario Bega

Konstantinos Samdanis

Iris Adam

Shubhranshu Singh

Xin Wang

Muhammad Majid Butt

German Peinado Gomez

Fabio Giust

Apostolos Papageorgiou

Bahare Masood Khorsandi

Systems, methods, apparatuses, and computer program products for network data analytics function (NWDAF) accuracy enhancement. A method may include selecting a network function that can provide accuracy information. The method may also include sending a request to the network function for one or more accuracy reports for one or more analytics predictions. The method may further include receiving the one or more accuracy reports from the network function. In addition, the method may include managing the one or more analytics predictions based on the one or more accuracy reports.

Network data analytics function accuracy enhancement

The present disclosure provides measures for analytics control. Such measures exemplarily comprise receiving, from a network entity consuming analytics, an analytics demand including an input data identifier indicative of input data on the basis of which said analytics are to be performed, obtaining the input data based on the input data identifier, performing said analytics on the basis of said input data, and providing, to said network entity consuming analytics, a result of said analytics.

Analytics control

The disclosure relates to an apparatus comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: receive (), from a model provider function, a user equipment identifier and a model identifier; generate () an access key to allow a user equipment identified by the user equipment identifier to access a model identified by the model identifier; store () the user equipment identifier and the model identifier along the access key to allow a user equipment identified by the user equipment identifier to access a model identified by the model identifier; and send (), to the user equipment, the access key.

Apparatus, method, and computer program

Example embodiments of the present disclosure relate to access token revocation in security management. In an example method, in response to providing, to a second device, an access token for the second device to access a NF service from a third device, a first device stores a mapping indicating an association among the access token, the second device and the third device. In response to determining that the second device is abnormal, the first device sends, to at least one target device based on the mapping, an indication of revoking the access token. In this way, at least one target device associated with revoked access token can be informed and potential damage caused by the abnormal NF can be eliminated.

Access token revocation in security management

Methods, systems, apparatuses, and computer program products are provided for authorized machine learning model retrieval for a communications network. In this regard, an access token request for one or more machine learning models related to a communications network is received from a network function service consumer (NFc). The access token request includes information to identify the one or more machine learning models. The NFc is then authorized with respect to the one or more machine learning models based on the information included in the access token request. Additionally, enhanced an access token for retrieving the one or more machine learning models is provided to the NFc based on valid authorization of the NFc with respect to the one or more machine learning models.

Authorized machine learning model retrieval for a communications network

An apparatus for use by a communication network element or communication network function configured to operate as an analytics entity and having an analytics logical function. The apparatus is caused to: receive a request, from a service consumer, for provision of a custom analytics service, process data retrieved from the request for determining whether a model for providing the requested custom analytics service is prepared, and in case the determination is negative, determine and select a model training entity having a model training logical function which is able to create a model for custom analytics and has access to data required for the requested custom analytics service, request, from the selected model training entity, to obtain a trained model capable of providing the requested custom analytics service and forward the information specifying the custom analytics service to the selected model training entity.

Mechanism for enabling custom analytics

Techniques for detection of abnormal network function service usage in a communication network are disclosed. For example, a method comprises obtaining, at a first network entity, one or more service requests previously received by a second network entity for a service which the second network entity is configured to provide in a communication network. The method further comprises obtaining, at the first network entity, an analysis of the one or more service requests previously received by the second network entity for the service. The method further comprises obtaining, at the first network entity, an expected service usage for the service from the analysis of the one or more service requests. The method may then compare incoming service requests to the expected service usage to detect a given condition, e.g., an abnormal condition, so that at least one action can be taken.

Detection of abnormal network function service usage in communication network

Techniques for data management in a network entity to authorize data consumers in a communication network are disclosed. For example, a method comprises receiving, at a network entity of a communication network, data generated by a data producer in the communication network, and storing, at the network entity, the data generated by the data producer. The stored data has metadata, associated with the data producer, appended thereto.

Data management for authorizing data consumers in communication network

According to an example aspect of the present invention, there is provided an apparatus comprising means for receiving from a requesting network function, by a network repository function, an access token request, wherein the access token request is related to a network function consumer requesting access to a service provided by a network function producer and comprises an identity of a vendor of the network function consumer requesting access to the service, means for verifying by the network repository function, based at least on the identity of the vendor of the network function consumer, that the network function consumer is allowed to access the service and means for transmitting to the requesting network function, by the network repository function, an access token upon successful verification, wherein the access token generated and signed by the network repository function comprises the identity of the vendor of the network function consumer and an identity of the vendor of the network function producer.

Enhanced authorization in cellular communication networks

According to an example aspect of the present invention, there is provided an apparatus comprising means for receiving, by a network function configured to provide centralized user consent authorization in a cellular communication system, a user consent authorization request from a logical network entity, wherein the user consent authorization request comprises an identity of at least one user equipment whose user consent is requested by the logical network entity, the logical network entity being a network function service consumer or an application function, means for retrieving user consent information concerning the at least one user equipment whose user consent is requested by the logical network entity, wherein said user consent information indicates individually whether the logical network entity is authorized to access data related to each of the at least one user equipment, means for determining, based on said user consent information, whether the logical network entity is authorized to access data related to each of the at least one user equipment and means for transmitting, based on said determination, a response signed by the network function to the logical network entity.

Authorization in cellular communication systems

According to an example aspect of the present invention, there is provided a method comprising, determining, by an apparatus configured to operate as a network function a cellular communication system, at least two disjoint network paths, wherein the at least two disjoint network paths are different paths, and comprise different physical resources, transmitting, by the apparatus, a subscription request to an analytics function of the cellular communication system, to request notifications about attacks or risks of attacks on at least one network function on at least one of the at least two disjoint network paths, receiving from the analytics function, by the apparatus, information about at least one compromised network entity and/or at least one network entity having a risk of being compromised on said at least one of the at least two disjoint network paths and performing, by the apparatus, attack mitigation based on said information.

Growing community of inventors

Munich, Germany

Gerald Kunzmann