公开(公告)号：US20230336657A1

公开(公告)日：2023-10-19

申请号：US18298482

申请日：2023-04-11

Applicant: DISH Wireless L.L.C.

Inventor： Xiangang Dai ,  Kenneth William Weber, JR. ,  Dawood Shahdad

IPC: H04W84/04 ,  H04M3/22

CPC classification number: H04M3/2281 ,  H04W84/042

Abstract: Systems and methods for performing a call trace with a cloud-implemented cellular network core are provided. In one example, a method includes: receiving input of a cloud computing region of a cloud computing platform for call trace, identifying a plurality of instantiations of a pod within a cellular network core function of a cellular network core, the cellular network core function being executed on the cloud-computing platform, and executing a call trace for the plurality of instantiations of the pod within the cellular network core function. The cellular network core of a cellular network is implemented across multiple cloud computing regions, and the cellular network core is implemented on the cloud computing platform that includes a plurality of cloud computing regions that includes the cloud computing region.

公开(公告)号：US20250088594A1

公开(公告)日：2025-03-13

申请号：US18243300

申请日：2023-09-07

Applicant: DISH Wireless L.L.C. ,  DISH Network Technologies India Private Limited

Inventor： Jaya Chandra Chikatmarla ,  Sruthi Nair ,  Xiangang Dai ,  Kumar Anshuman ,  Dawood Shahdad

IPC: H04M15/00 ,  H04W4/24

Abstract: According to various embodiments, systems and methods disclosed herein can extract an actual address of a visitor location register (VLR) and an actual address of a mobile switching center (MSC) from signaling messages from a circuit-switched (CS) network in a foreign country and forward the actual addresses to a wireless network (e.g., a 5G network) whose subscriber is roaming in the foreign country through the CS network. The wireless network can use the actual address to determine the identity of the roaming country and the identity of the CS network so that the wireless network can exercise roaming control (e.g., authorizing or rejecting roaming calls) and billing users of the roaming subscribers based on which countries they are roaming in.

公开(公告)号：US20240373297A1

公开(公告)日：2024-11-07

申请号：US18524473

申请日：2023-11-30

Applicant: DISH Wireless L.L.C.

Inventor： Dawood Shahdad ,  Xiangang Dai

IPC: H04W36/00 ,  H04W76/50

Abstract: Systems, methods, and non-transitory, machine-readable media facilitate continuation of voice services in the event of failure of a subscriber data layer in a wireless network. A cellular network core may include one or more servers. An emergency server may be configured to, during non-emergency operations of the cellular network core, collect subscriber mapping data. The subscriber mapping data may correspond to subscriber phone numbers and international mobile subscriber identities (IMSIs) for particular user equipment (UE). The emergency server may be further configured to, during non-emergency operations of the cellular network core, store the subscriber mapping data in storage, where the storage is not shared with the cellular network core. The emergency server may be further configured to, during an emergency mode, use a mapping of the subscriber phone numbers and/or the IMSIs for the particular UE to facilitate completion of one or more voice calls.