Neighbor Relations for Moving Cells
    211.
    发明申请

    公开(公告)号:US20210250822A1

    公开(公告)日:2021-08-12

    申请号:US17242095

    申请日:2021-04-27

    Abstract: Systems and methods for cell ID disambiguation are described. In one embodiment, a method for constructing a neighbor table is disclosed, comprising: receiving, at a coordinating node, a physical cell identifier (PCI) of a detected neighbor base station from a user equipment (UE); receiving, at the coordinating node, a global positioning system (GPS) position of a moving mobile base station; determining, at the coordinating node, a future projected area of location for the moving mobile base station using the GPS position; retrieving, at the coordinating node, the PCI of the detected neighbor base station using the future projected area of location; and assigning an unambiguous PCI for the moving mobile base station that does not conflict with the retrieved PCI.

    IuGW Architecture with RTP Localization

    公开(公告)号:US20210243663A1

    公开(公告)日:2021-08-05

    申请号:US17235890

    申请日:2021-04-20

    Abstract: A method for localizing a voice call is disclosed, comprising: receiving an originating leg setup message for an originating leg bearer from the first base station for a first user equipment (UE); creating a first call correlation identifier and storing the first call correlation identifier in association with the first UE; extracting a second call correlation identifier from a terminating leg setup message for a terminating leg bearer received from the core network; determining a real time protocol (RTP) localization status for the originating leg bearer and the terminating leg bearer based on matching the second call correlation identifier of the terminating leg against the stored first call correlation identifier of the originating leg; and sending transport layer assignment messages to the first base station to redirect RTP packets from the first UE to the second UE via the terminating leg bearer without the RTP packets transiting the core network.

    Inter-PGW Handover Architecture
    214.
    发明申请

    公开(公告)号:US20210219359A1

    公开(公告)日:2021-07-15

    申请号:US17217431

    申请日:2021-03-30

    Abstract: A method is disclosed for providing IP access across packet data network gateways (PGWs), comprising: receiving, from a UE, at a coordinating node, an attach request; sending a request to create a first new session to a first PGW; sending a request to create a second new session to a second PGW; receiving, from the first PGW and at the coordinating node, a first request for policies for the UE; receiving, from the second PGW and at the coordinating node, a second request for policies for the UE; opening a first data tunnel from the coordinating node to the first PGW; opening a second data tunnel from the coordinating node to the second PGW without closing the first data tunnel; and opening a data tunnel between the UE and the coordinating node for providing IP access to both the first PGW and the second PGW.

    Handovers with simplified network topology

    公开(公告)号:US11026136B2

    公开(公告)日:2021-06-01

    申请号:US15721728

    申请日:2017-09-29

    Abstract: Systems and methods for handovers with simplified network topology are disclosed. In a first embodiment, a method is disclosed, comprising: at a coordinating gateway during a handover of a mobile device from a first base station to a second base station, receiving a first handover request from the first base station; discarding a first shared security key received in the first handover request; sending a tunnel switching request to a core network node; obtaining precursors for a second shared security key from the core network node in a response to the switching request; sending a second handover request to the second base station with the precursors to calculate the second shared security key for securing a data connection for the mobile device following the handover; deriving the second shared security key from the obtained precursors at the first base station; and deriving the second shared security key from the obtained precursors at the coordinating gateway.

    Hand-in with topology hiding
    216.
    发明授权

    公开(公告)号:US10979948B2

    公开(公告)日:2021-04-13

    申请号:US15810003

    申请日:2017-11-10

    Abstract: Systems and methods for performing handover coordination between base stations are disclosed. In a first embodiment, a method is disclosed, comprising: receiving, at a base station, a first serving cell signal measurement and a first neighbor cell signal measurement from a particular user equipment (UE); sending an adjustment message, from the base station to the UE, containing a cell-specific offset of the serving cell and a cell-specific offset of the neighbor cell in a reporting threshold based on at least one handover adjustment factor received from a coordinating node; receiving, at the base station and subsequent to adjusting the cell-specific offsets, a second serving cell signal measurement and a second neighbor cell signal measurement; and deciding whether to trigger a handover event based on the first and the second serving cell signal measurement and the first and the second neighbor cell signal measurement and the cell-specific offsets.

    End-to-end prioritization for mobile base station

    公开(公告)号:US10972934B2

    公开(公告)日:2021-04-06

    申请号:US16460162

    申请日:2019-07-02

    Abstract: A method for utilizing quality of service information in a network with tunneled backhaul is disclosed, comprising: establishing a backhaul bearer at a base station with a first core network, the backhaul bearer established by a backhaul user equipment (UE) at the base station, the backhaul bearer having a single priority parameter, the backhaul bearer terminating at a first packet data network gateway in the first core network; establishing an encrypted internet protocol (IP) tunnel between the base station and a coordinating gateway in communication with the first core network and a second core network; facilitating, for at least one UE attached at the base station, establishment of a plurality of UE data bearers encapsulated in the secure IP tunnel, each with their own QCI; and transmitting prioritized data of the plurality of UE data bearers via the backhaul bearer and the coordinating gateway to the second core network.

    Support for CUPS PFCP Session at UE Level for Serving Gateway

    公开(公告)号:US20210092585A1

    公开(公告)日:2021-03-25

    申请号:US17027519

    申请日:2020-09-21

    Abstract: A method, system and computer readable medium for providing support for CUPS PFCP Session at UE Level for Serving Gateway are presented. In one embodiment, a method includes providing a Packet Forwarding Control Protocol (PFCP) session at a User Equipment (UE) level for a Serving Gateway (SGW); anchoring, by the SGW, the UE session; handling, by the SGW, buffering of Idle UE and UE Active-to-Idle transitions; using, by the SGW, a same PFCP session for all Packet Data Networks (PDNs); and using, by the SGW, a same Buffering Action Rule (BAR) for all PDNs.

    4G/5G Core Interworking
    219.
    发明申请

    公开(公告)号:US20210084714A1

    公开(公告)日:2021-03-18

    申请号:US17022077

    申请日:2020-09-15

    Abstract: Systems, methods and computer software are disclosed for 4G and 5G core interworking. In one embodiment a HetNet gateway (HNG) is disclosed. The HNG includes a virtual 4G core; a virtual 5G core; an interface to a core network; an interface to a 4G Radio Access Network (RAN); and an interface to a 5G RAN. The HNG provides interworking 4G to 5G such that a 5G RAN works with a 4G core.

Patent Agency Ranking