Method and Apparatus for Anomaly Detection in a Network

    公开(公告)号:US20220200857A1

    公开(公告)日:2022-06-23

    申请号:US17643936

    申请日:2021-12-13

    Abstract: An apparatus for anomaly detection in a network, using an autoencoder including an encoder and a decoder. The apparatus includes a processor and a memory including computer program code, causing the apparatus to: providing the decoder with network configuration parameters used to obtain calculated network performance indicators, obtaining reconstructed network performance indicators from the decoder based on the network configuration parameters used to obtain the calculated network performance indicators, comparing the reconstructed network performance indicators with the calculated network performance indicators, detecting an anomaly when observing a deviation between the reconstructed network performance indicators and the calculated network performance indicators, providing the encoder with the calculated network performance indicators, obtaining estimated network configuration parameters from the encoder based on the calculated network performance indicators, detecting that the anomaly is related to the network configuration parameters.

    MACHINE LEARNING BASED HANDOVER PARAMETER OPTIMIZATION

    公开(公告)号:US20210289406A1

    公开(公告)日:2021-09-16

    申请号:US17188264

    申请日:2021-03-01

    Abstract: Disclosed is a method comprising obtaining a plurality of handover parameter values, using a first machine learning model to select a subset of handover parameter values from the plurality of handover parameter values, obtaining historical information of a plurality of terminal devices, determining a first set of optimal handover parameter values for the plurality of terminal devices from the subset of handover parameter values, tagging the first set of optimal handover parameter values with the historical information of the plurality of terminal devices to obtain a labelled dataset, and training a second machine learning model with the labelled dataset, wherein the trained second machine learning model is capable of predicting a second set of optimal handover parameter values for a first terminal device based on historical information of the first terminal device.

    RADIO MAP IMPROVEMENTS
    5.
    发明公开

    公开(公告)号:US20240302483A1

    公开(公告)日:2024-09-12

    申请号:US18666510

    申请日:2024-05-16

    CPC classification number: G01S5/02524

    Abstract: Disclosed is a solution for managing a radio map based on radio fingerprinting measurements. A method comprises: acquiring a radio map of an area, the radio map based on radio frequency measurements performed between at least one access node of a wireless network and terminal devices within the area; detecting at least one gap in the radio map and determining geographical coordinates of the at least one gap; causing transmission of a message comprising at least one information element requesting for additional measurements and comprising the geographical coordinates of the at least one gap; in response to the message, receiving at least one radio frequency measurement report related to at least one terminal device and comprising radio frequency measurement data and at least one measurement location where the radio frequency measurement data has been measured; and updating the radio map on the basis of the radio frequency measurement data.

    Apparatus and Method for Detecting PRACH Storm Attacks

    公开(公告)号:US20230413056A1

    公开(公告)日:2023-12-21

    申请号:US18210725

    申请日:2023-06-16

    CPC classification number: H04W12/121 H04W74/0833 H04W12/63

    Abstract: A method for a physical random access channel (PRACH) attack detection includes detecting by a base station a plurality of preambles sent by devices through a PRACH; launching by the base station a random access (RA) procedure for at least one device for which a preamble has been detected; decoding by the base station at least one radio resource control (RRC) connection request received in the context of a launched RA procedure; determining by the base station a first metric and a second metric, wherein the first metric is the number of RRC connection requests successfully decoded over time, wherein the second metric is the number of preambles detected over the same time and for which a RA procedure has been launched; determining whether there is a suspicion of storm attack over the PRACH based on a result of a comparison of the first and second metrics.

    RADIO EMISSION CONTROL
    8.
    发明申请

    公开(公告)号:US20240389034A1

    公开(公告)日:2024-11-21

    申请号:US18664998

    申请日:2024-05-15

    Abstract: To provide fairness between served apparatuses while keeping radio frequency exposure below a defined limit, an apparatus collects, per a sampling period, historical data on tokens at the sampling period, the historical data including at least number of tokens requested during the sampling period, wherein a token is indicative of an amount of radiated power for transmission of a data element. The collected historical data is transmitted to a wireless network. The wireless network determines hindsight based estimations for maximum token consumptions that should have been allowed, and then determines for a control policy, using at least numbers of tokens requested in the historical data received and corresponding hindsight based estimations determined, updated weight values, and transmit them to the apparatus. The apparatus then updates its control policy correspondingly, applies it, collects historical data, and transmits it to the wireless network to obtain updated weight values.

    RADIO MAP IMPROVEMENTS
    9.
    发明公开

    公开(公告)号:US20240012088A1

    公开(公告)日:2024-01-11

    申请号:US18345570

    申请日:2023-06-30

    CPC classification number: G01S5/02524

    Abstract: Disclosed is a solution for managing a radio map based on radio fingerprinting measurements. A method comprises: acquiring a radio map of an area, the radio map based on radio frequency measurements performed between at least one access node of a wireless network and terminal devices within the area; detecting at least one gap in the radio map and determining geographical coordinates of the at least one gap; causing transmission of a message comprising at least one information element requesting for additional measurements and comprising the geographical coordinates of the at least one gap; in response to the message, receiving at least one radio frequency measurement report related to at least one terminal device and comprising radio frequency measurement data and at least one measurement location where the radio frequency measurement data has been measured; and updating the radio map on the basis of the radio frequency measurement data.

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