Two-Factor Authentication in a Cellular Radio Access Network

    公开(公告)号:US20220086155A1

    公开(公告)日:2022-03-17

    申请号:US17539038

    申请日:2021-11-30

    Abstract: A method for authenticating radio access network devices is disclosed, comprising: authenticating, at a coordination server, a base station in a radio access network using a first authentication factor; selecting, following successful authentication of the base station using the first authentication factor, a challenge question based on historical information of the base station stored within a database; sending, from the coordination server to the base station, a request containing the challenge question to further authenticate the base station based on the historical information of the base station; receiving, from the base station at the coordination server, a response to the challenge question; verifying, at the coordination server, the correctness of the response using a key derived from the historical information; and granting the base station access to a core network of a mobile operator, thereby addressing security issues unsolved by one-factor authentication.

    SIM whitelisting and multi-operator core networks

    公开(公告)号:US11140611B2

    公开(公告)日:2021-10-05

    申请号:US16691599

    申请日:2019-11-21

    Abstract: A method may be disclosed in accordance with some embodiments, comprising: receiving, at a virtualizing gateway, a first service request from a first user equipment (UE) via a first eNodeB; creating, at the virtualizing gateway, an association from each of a plurality of UE identifiers to a desired core network; applying, at the virtualizing gateway, a first filter using a first UE identifier of the first UE, based on the association; forwarding, at the virtualizing gateway, based on the applied first filter, the first service request from the first UE to the first core network; receiving, at the virtualizing gateway, via a second base station, a second service request from a second user equipment (UE); applying, at the virtualizing gateway, a second filter using a second UE identifier of the second UE, based on the association; and forwarding, at the virtualizing gateway, based on the applied second filter, the second service request from the second UE to the second core network.

    CDMA/EVDO virtualization
    4.
    发明授权

    公开(公告)号:US10932164B2

    公开(公告)日:2021-02-23

    申请号:US15883083

    申请日:2018-01-29

    Abstract: Systems and methods are disclosed for a CDMA base station management gateway for integrating CDMA into an LTE Evolved Packet Core (EPC) core network. In one embodiment, a system is disclosed, comprising: a base station management gateway situated between a code division multiple access (CDMA) base transceiver station (BTS) and an Evolved Packet Core (EPC) core network, the base station management gateway also situated between an additional base station and the EPC core network, the base station management gateway The method may further comprise: a stateful interworking proxy configured to perform interworking of CDMA signaling to Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (EUTRAN) signaling by using an S2a/S2b interface toward the EPC and an A10/A11 interface towards the CDMA BTS; and a packet routing virtual function configured to enable mobile devices attached to the CDMA BTS to obtain IP connectivity via the EPC core network.

    Out-of-Band Monitoring and Provisioning
    6.
    发明申请

    公开(公告)号:US20190260632A1

    公开(公告)日:2019-08-22

    申请号:US16279601

    申请日:2019-02-19

    Abstract: A method is disclosed for out-of-band data communication with a base station in a wireless network, the method comprising: determining, at a base station in a cellular access network, the base station configured to use a coordination server and to a first core network for providing network access to user equipments (UEs), an occurrence of an event regarding a communication problem related to the base station; sending an out-of-band message, via an embedded UE module coupled to the base station attached to a second core network, to the coordination server, based on the occurrence of the event at the base station; updating, at the coordination server, a stored status for the base station, thereby enabling a status of the base station to be updated at the coordination server via an out-of-band message.

    Two-Factor Authentication in a Cellular Radio Access Network

    公开(公告)号:US20190149545A1

    公开(公告)日:2019-05-16

    申请号:US16192794

    申请日:2018-11-15

    Abstract: A method for authenticating radio access network devices is disclosed, comprising: authenticating, at a coordination server, a base station in a radio access network using a first authentication factor; selecting, following successful authentication of the base station using the first authentication factor, a challenge question based on historical information of the base station stored within a database; sending, from the coordination server to the base station, a request containing the challenge question to further authenticate the base station based on the historical information of the base station; receiving, from the base station at the coordination server, a response to the challenge question; verifying, at the coordination server, the correctness of the response using a key derived from the historical information; and granting the base station access to a core network of a mobile operator, thereby addressing security issues unsolved by one-factor authentication.

    Intelligent RAN Flow Management and Distributed Policy Enforcement

    公开(公告)号:US20180006954A1

    公开(公告)日:2018-01-04

    申请号:US15640429

    申请日:2017-06-30

    Abstract: A system is disclosed for providing configurable flow management, comprising: a first base station coupled to a user device and with an established control connection with the user device; and a coordinating node coupled to the first base station and coupled to a core network, thereby providing a gateway for the first base station and the user device to the core network, the core network further comprising a policy and charging rules function (PCRF) node with a database of policy rules, wherein the coordinating node is configured to retrieve policy rules from the PCRF node, to enable enforcement of retrieved policy rules on flows from the user device passing through the coordinating node, and to transmit policy rules to the first base station for enforcement at the first base station.

    Optimized train solution
    10.
    发明授权

    公开(公告)号:US11671878B2

    公开(公告)日:2023-06-06

    申请号:US17115030

    申请日:2020-12-08

    Abstract: The use of wireless backhaul poses special challenges for in-vehicle base stations. Users that are connected to an in-vehicle base station expect continuous service, even as the in-vehicle base station passes in and out of different wireless backhaul coverage zones, such as when a train passes from a train station with good coverage to a tunnel with poor coverage. The base station thus needs seamless backhaul handover. A system that enables an in-vehicle base station to receive continuous service across different backhaul coverage zones is needed. To solve this problem, a system enabling handover is described. The system involves double-tunneling mobile device data packets in an ESP-UDP IPsec tunnel encapsulated in a GTP-U tunnel. Traffic is transmitted from a mobile device to a specially configured base station that encapsulates mobile device data packets and sends them to the network via wireless backhaul using an LTE UE modem connection.

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