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    Use of alternate VoIP call-placement service in response to IMS processing failure
    3.
    发明授权
    Use of alternate VoIP call-placement service in response to IMS processing failure 有权

    公开(公告)号：US11218516B1

    公开(公告)日：2022-01-04

    申请号：US16948342

    申请日：2020-09-14

    Applicant: Sprint Spectrum L.P.

    Inventor： Saravana Velusamy ,  Sreekar Marupaduga ,  Rajil Malhotra

    IPC: H04L29/06

    Abstract: A method and system for responding to a processing failure of an Internet Protocol (IP) Multimedia Subsystem (IMS). An example method includes a computing system detecting the processing failure of the IMS and responsively causing one or more user equipment devices (UEs) to forgo using the IMS for voice over IP (VoIP) call placement and to instead use an alternate VoIP calling service for VoIP call placement. For instance, a given UE may be configured by default to use the IMS for VoIP call placement, but the UE may detect an IMS processing failure and may responsively instead make a next VoIP call placement attempt using an alternate VoIP calling service, such as a third party VoIP calling application running on the UE.

    Method and system of imposing a policy rule for heavy usage
    4.
    发明授权
    Method and system of imposing a policy rule for heavy usage 有权
    强制使用政策规则的方法和制度

    公开(公告)号：US09596162B1

    公开(公告)日：2017-03-14

    申请号：US14519087

    申请日：2014-10-20

    Applicant: Sprint Spectrum L.P.

    Inventor： Saravana Velusamy ,  Rajil Malhotra ,  Naresh Madineni ,  Deveshkumar N. Rai

    IPC: G06F15/173 ,  H04L12/26 ,  H04L12/801 ,  H04L12/813

    CPC classification number: H04L43/0894 ,  H04L41/0893 ,  H04L43/16 ,  H04L47/10 ,  H04L47/20 ,  H04W28/0205

    Abstract: Disclosed is a method and system of imposing a policy rule for excessive usage in an access network. According to the disclosure, a policy enforcement point (PEP) may detect that usage by a given client device is threshold high and responsively request, from a policy decision point (PDP), a policy directive that specifies a policy rule to apply to the given client device. However, thereafter, the PEP may determine that the requested policy directive has not been received from the PDP and then responsively apply, to the given client device, a default policy rule for threshold-high usage.

    Abstract translation: 公开了一种在接入网络中过度使用的策略规则的方法和系统。 根据本公开，策略执行点（PEP）可以检测到给定客户端设备的使用是高阈值，并且从策略决策点（PDP）响应地请求指定应用于给定的策略规则的策略规则 客户端设备。 然而，此后，PEP可以确定尚未从PDP接收到所请求的策略指令，然后响应地向给定客户端设备应用阈值高使用的默认策略规则。

    Dynamic management and use of bearers for media communication
    5.
    发明授权
    Dynamic management and use of bearers for media communication 有权
    动态管理和使用媒体通信的承载

    公开(公告)号：US09462525B1

    公开(公告)日：2016-10-04

    申请号：US14335493

    申请日：2014-07-18

    Applicant: Sprint Spectrum L.P.

    Inventor： Rajil Malhotra ,  Asfaw Negeri ,  Ashish Bhan ,  Saravana Velusamy

    IPC: H04W76/02 ,  H04W36/16 ,  H04W88/16 ,  H04W28/08

    CPC classification number: H04W76/025 ,  H04W28/085 ,  H04W76/15 ,  H04W88/16

    Abstract: When a UE has a first bearer with a gateway via a first base station and the UE engages in session setup signaling with a session server via that first bearer to set up a media session, the network may establish for the UE a second bearer via a second base station, and may the second bearer for communication of media content of the session while using the first bearer for communication control signaling for the session. In practice, the first base station could be a macro base station that operates on licensed frequency spectrum, while the second base station could be a small cell that operates on unlicensed frequency spectrum. The disclosed process can thereby help to offload communication of session content to be via the small cell instead of via the macro base station, while maintaining session control signaling to be via the macro base station.

    Abstract translation: 当UE经由第一基站具有与网关的第一承载，并且UE经由该第一承载与会话服务器进行会话建立信令以建立媒体会话时，网络可以经由以下步骤为UE建立第二承载： 第二基站，并且可以使用用于会话的媒体内容的通信的第二承载，同时使用用于会话的通信控制信令的第一承载。 在实践中，第一基站可以是在许可频谱上操作的宏基站，而第二基站可以是在非许可频谱上操作的小小区。 所公开的处理可以有助于通过小型小区代替经由宏基站来卸载会话内容的通信，同时维持会话控制信令将经由宏基站。

    Dynamic migration of session data between firewalls to facilitate low-latency session continuity
    6.
    发明授权
    Dynamic migration of session data between firewalls to facilitate low-latency session continuity 有权

    公开(公告)号：US11638150B1

    公开(公告)日：2023-04-25

    申请号：US17249088

    申请日：2021-02-19

    Applicant: Sprint Spectrum L.P.

    Inventor： Anubhav Visen ,  Rajil Malhotra

    IPC: H04W12/08 ,  H04W12/088 ,  H04L69/326 ,  H04L9/40 ,  H04L67/148

    Abstract: A method and system to facilitate session continuity where a user-plane function (UPF) serves user-equipment devices (UEs) and communicates with a transport network by default through a first firewall. As each of various ones of the UEs establishes a respective TCP session via the first firewall, the UPF determines if the UE is likely to engage in latency-sensitive communication, such as if the UE is a Ultra-Reliable Low-Latency Communication (URLLC) device and if so causes the first firewall to record the UE's TCP session 5-tuple to a centralized data storage. Thereafter when the UPF switches to use a second firewall instead of the first firewall (e.g., because the first firewall goes out of service), the UPF causes the second firewall to get from the centralized data store the TCP session 5-tuple of each such UE, for access-control use by the second firewall, to help provide session continuity.

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