Optimized train solution
    421.
    发明授权

    公开(公告)号:US10231151B2

    公开(公告)日:2019-03-12

    申请号:US15686152

    申请日:2017-08-24

    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.

    Adjusting transmit power across a network

    公开(公告)号:US10142948B2

    公开(公告)日:2018-11-27

    申请号:US15438641

    申请日:2017-02-21

    Abstract: Systems and methods are disclosed for adjusting transmit power in a wireless network. In one embodiment, a method is disclosed that includes identifying a selected base station with a first coverage area for adjustment of transmit power; identifying a plurality of neighboring base stations with coverage areas nearby the first coverage area; retrieving a plurality of signal strength measurements from a plurality of mobile devices within the coverage areas of the plurality of neighboring base stations; determining, based on the plurality of measurements, an effect on the plurality of mobile devices within the coverage areas of the plurality of neighboring base stations; and sending an instruction for adjustment of transmit power to the selected base station.

    PHY error indication messaging
    424.
    发明授权

    公开(公告)号:US10135570B2

    公开(公告)日:2018-11-20

    申请号:US15479273

    申请日:2017-04-04

    Abstract: This disclosure introduces an advancement to the error indication message to provide detailed information about errors in configurations that are arriving from the Layer 2 to the Layer 1. A method is disclosed, comprising: performing physical layer control (PHY) of a wireless signal at a Layer 1 (L1) software module; performing medium access control (MAC) of the wireless signal at a Layer 2 (L2) software module; providing an application programming interface between the L1 software module and the L2 software module for receiving L1 configuration messages and providing error codes to the L2 software module; receiving a L1 configuration message at a Layer 1 software module; and providing an enhanced error code progressively from a L1 software module to the Layer 2 (L2) software module.

    RAN for Multimedia Delivery
    426.
    发明申请

    公开(公告)号:US20180316617A1

    公开(公告)日:2018-11-01

    申请号:US16012601

    申请日:2018-06-19

    Abstract: A method is disclosed for tearing down a TCP connection between a transmission control protocol (TCP) client in a radio access network (RAN) and a TCP server, comprising: receiving, at the TCP client, an indication to close the TCP connection; sending, from the TCP client to the TCP server, a TCP segment with a FIN bit set to indicate termination of the TCP connection; and closing, at the TCP client, the TCP connection without waiting for double the maximum segment lifetime period, thereby releasing the radio bearer resources and achieving radio bearer resource optimization.

    Out-of-band power down notification
    427.
    发明授权

    公开(公告)号:US10117173B2

    公开(公告)日:2018-10-30

    申请号:US14923392

    申请日:2015-10-26

    Inventor: Sumit Garg

    Abstract: A mobile base station is disclosed, comprising: a vehicle bus notification module; an access interface for communicating with a mobile device; a backhaul interface for communicating with an operator core network; and a processor, in communication with the vehicle bus notification module, the access interface, and the backhaul interface, further comprising instructions that, when executed by the processor, perform steps comprising: receiving a vehicle bus low power alert at the vehicle bus notification module; and sending a message via the backhaul interface to the operator core network to request a notification to be sent to the mobile device regarding power off of the mobile base station.

    X2 Brokering with Aggregation Optimization
    428.
    发明申请

    公开(公告)号:US20180242396A1

    公开(公告)日:2018-08-23

    申请号:US15961719

    申请日:2018-04-24

    Abstract: A method for providing stateful proxying is disclosed, comprising: associating a first base station with a first base station identifier at a signaling protocol gateway, and with a first Internet Protocol (IP) address of the signaling protocol gateway; associating a second base station with a second base station identifier at the signaling protocol gateway, and with a second IP address of the signaling protocol gateway; establishing a first signaling protocol connection between a third base station and the first base station via the signaling protocol gateway with the first base station using the first IP address of the signaling protocol gateway; and establishing a signaling protocol connection between the third base station and the second base station with the second base station using the second IP address of the signaling protocol gateway.

Patent Agency Ranking