Congestion and overload reduction
    331.
    发明授权

    公开(公告)号:US11743763B2

    公开(公告)日:2023-08-29

    申请号:US17131710

    申请日:2020-12-22

    CPC classification number: H04W28/0289 H04W28/0247 H04W76/16 H04W76/18

    Abstract: A gateway server situated between a radio access network and a core network is disclosed that includes a radio access network packet interface, a load management module for monitoring load of a management server in the core network coupled to the radio access network packet interface, a packet forwarding module for forwarding requests to the management server coupled to the load management module, and a local packet core module coupled to the load management module and the packet forwarding module, the local packet core module being configured to respond to a mobile device, when an overload is detected at the management server, with a management server message requesting that the mobile device try again at a later time.

    Full Adaptive Target BLER LTE Feature
    332.
    发明公开

    公开(公告)号:US20230246751A1

    公开(公告)日:2023-08-03

    申请号:US18161887

    申请日:2023-01-30

    CPC classification number: H04L1/203 H04B17/336

    Abstract: A method of providing a full adaptive target BLER is described. In one embodiment, a method includes defining a first threshold; defining a second threshold; when voice traffic services are enabled, then setting the second threshold to a predetermined value; and when voice traffic service are not enabled, then setting the second threshold to a value corresponding to a current Signal to Interference and Noise Ratio (SINR) value.

    Support for CUPS PFCP session at UE level for serving gateway

    公开(公告)号:US11711685B2

    公开(公告)日:2023-07-25

    申请号:US17027519

    申请日:2020-09-21

    CPC classification number: H04W8/087 H04W76/10

    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.

    Optimized train solution
    336.
    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.

    Dynamic Multipath Searcher Revisit Rate for a WCDMA Receiver

    公开(公告)号:US20230163840A1

    公开(公告)日:2023-05-25

    申请号:US18057761

    申请日:2022-11-21

    CPC classification number: H04B7/2668

    Abstract: A method for dynamically adjusting the revisit rate of a rake receiver for an individual UE is disclosed, such that the time to initially acquire the UL transmission is optimized while the ongoing Central Processing Unit (CPU) loading during normal operation is minimized. The method may comprise operating a multipath searcher in a first mode of operation at a first time, the first mode being an acquisition mode, the multipath searcher operating with a revisit rate of 100 percent; and, operating the multipath searcher in a second mode of operation at a second time, the second mode being a steady-state mode and the multipath searcher operating with a revisit rate of less than 100 percent.

    Method to retrieve security keys of UE in gateways

    公开(公告)号:US11638181B2

    公开(公告)日:2023-04-25

    申请号:US17486907

    申请日:2021-09-27

    Inventor: Arjun Nandyal

    Abstract: Methods, systems, and computer readable media are presented for retrieving security keys in gateways. In one example embodiment, a method is presented. The method of retrieving security keys from a User Equipment (UE) in gateways includes retrieving, by a HetNet Gateway (HNG) as the HNG virtualizes an eNodeB towards n Mobility Management Entity (MME) through a first message and a second message exchange, a fresh Next Hop, Next Hop Chaining Count {NH, NCC} pair from the MME; and mocking, by the HNG, an X2 handover towards the MME by sending a third message with required Information Elements filled when a fourth message from the eNodeB reaches the HNG.

    Embedded 2G/NB-IoT Co-deployment with 4G/5G LTE

    公开(公告)号:US20230122251A1

    公开(公告)日:2023-04-20

    申请号:US17933480

    申请日:2022-09-19

    Inventor: Prashanth Rao

    Abstract: In a first embodiment, a method is disclosed, comprising: determining when and where to create a 2G/Narrowband-Internet of Things (NB-IOT) carrier at a 2G base station; starting up the 2G/NB-IOT carrier; creating an interference-free zone for a co-located 4G or 5G carrier co-located with the 2G base station; turning off the 2G/NB-IOT carrier; and reverting the interference-free zone. The method may further comprise embedding one or more 2G/NB-IOT carriers in a guard band of 4G/5G. The method may further comprise transmitting a 2G/NB-IOT carrier from a co-located base station. The method may further comprise using Self-organizing Network (SON) information to determine when a 2G/NB-IOT carrier should be started or shut down. The method may further comprise shutting down a 2G/NB-IOT carrier after use. The method may further comprise creating interference free zones in required regions of the spectrum. The method may further comprise creating interference free zones using a Relative Narrowband Transmit Power (RNTP) Information Element of a X2AP protocol. The method may further comprise creating interference free zones across multiple neighboring eNBs.

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