Optimized routing for law enforcement support

    公开(公告)号:US11678195B2

    公开(公告)日:2023-06-13

    申请号:US17356759

    申请日:2021-06-24

    CPC classification number: H04W12/80 H04L63/30 H04W64/003

    Abstract: An improved lawful intercept (LI) infrastructure is described. In response to a valid LI provisioning request, a subscriber management component statically allocates a user equipment (UE) subject to the LI provisioning request to an edge location comprising a high-speed gateway and a Mediation and Delivery Function (MDF), which coordinates the delivery of intercepted communications. The subscriber management component maintains this allocation for the life of the LI provisioning request and reverses the UE to a dynamic gateway allocation scheme when the LI provisioning request ends. As a result, only a subset of edge locations must be equipped with MDFs, and the handover is transparent to the UE.

    Providing LTE network devices with downlink channels in an unlicensed spectrum

    公开(公告)号:US11051288B2

    公开(公告)日:2021-06-29

    申请号:US16117985

    申请日:2018-08-30

    Abstract: A small cell device may communicate with a user device (e.g., a smartphone, a tablet computer, etc.) via a range extender device that extends the effective range of the small cell device to the user device. The small cell device, the range extender device, and the user device may communicate with one another using channels of a licensed spectrum (e.g., traditional LTE channels). The range extender device may determine channel conditions corresponding to an unlicensed spectrum (e.g., 5 Gigahertz (GHz) Spectrum) and communicate the channel conditions to the small cell device. Based on the channel conditions, the small cell device and the range extender device may select downlink-only channels of the unlicensed spectrum and cause the downlink capabilities of the channels of the unlicensed spectrum to be augmented by the downlink capabilities of the downlink-only channels of the unlicensed spectrum.

    Lawful intercept in future core interworking with evolved packet system

    公开(公告)号:US11128672B2

    公开(公告)日:2021-09-21

    申请号:US16682569

    申请日:2019-11-13

    Abstract: A method, a device, and a non-transitory storage medium are described in which a inter-networked lawful intercept service is provided. The inter-networked lawful intercept service may include providing lawful intercept information from a proxy call session control function to a future generation core network device. The proxy call session control function may be resident in an Internet Protocol Multimedia Subsystem network. The proxy call session control function may use a Diameter message that includes the lawful intercept information. The future generation core network device may be a policy control function. The lawful intercept information may be further provided to other core network devices, such as a session management function and a use plane function.

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