Abstract: Systems and methods for managing timers for Session Initiation Protocol (SIP) that facilitates network communications in an IP Multimedia Subsystem (IMS) are disclosed. Based on monitored network traffic, network performance measures can be determined to form a basis for dynamic configuration of SIP timers, which may reflect real time network status and optimize SIP based network communication.

Abstract: Processes and systems for identifying and removing non-functional Internet-of-Things (IoT) devices from a cellular network are discussed herein. In one example, a probability distribution function of a data profile transmitted by a type of IoT devices is generated. The probability distribution function may be chosen based on a known distribution such as a Gaussian, Bessel, or linear regressive model. The probability distribution function may be empirically generated by applying data received from IoT devices to a machine learning model using supervised or unsupervised learning. After generating the model representing the expected data profile of data received from a type or class IoT devices, data transmitted by the IoT devices may be applied to the model to determine whether the IoT devices are functional or non-functional. Non-functional IoT devices may be removed from the cellular network.

Abstract: Processes and systems for determining perceived signal strength indicator values of a cellular signal transmitted by a base station within a coverage region are discussed herein. In one example, user equipment measures signal strength indicator values for a cellular signal in a coverage region. A base station receives the signal strength indicator values measured by the user equipment and generates a signal strength indicator map using the received values and respective locations of the user equipment that measured the received values. Data indicative of the signal strength indicator map is transmitted to user equipment to guide users of user equipment to move to a region in the coverage region that has a greater perceived signal strength indicator for the cellular signal.

Abstract: Systems and methods for performing Evolved Packet System (EPS) fallback from a 5G system to an Evolved Packet Core (EPC) system are disclosed. The method, performed in a mobile device, detects a communication at the mobile device. The method then determines whether either the mobile device or a base station supports the communication over new radio. Directly in response to determining that either one of the mobile device or the base station does not support the communication over new radio, the method generates and transmits an EPS fallback message from the mobile device to the base station, wherein the EPS fallback message instructs the base station to initiate a fallback procedure from the 5G system to the EPC system.

Abstract: Systems and methods for maintaining and dynamically updating an inactivity timer at a user equipment to detect a one-way audio or mute call to improve call experience are disclosed. The method enables the user equipment to perform an action (e.g., enable, disable, drop call, don't drop call, etc.) when a one-way audio or mute call is detected. Instead of hardcoding values for the timer and/or action parameters within the user equipment (for example, by an original equipment manufacturer (OEM)), these parameter values can be dynamically determined and communicated to the user equipment by a telecommunications service provider based on one or more of the following factors: network health, network congestion, current events, type of call (emergency v. non-emergency), type of customer (business, premium, residential, etc.), service-level agreement, and so on.

Abstract: Devices, systems, and methods relate to performing Internet Protocol (IP) Media Subsystem (IMS) bearer activation and radio bearer activation at different times. In some embodiments, a radio bearer is activated after the IMS bearer is activated. The radio bearer that is activated after the IMS bearer is activated may utilize a different Radio Access Technology (RAT) than an initial radio bearer. In certain instances, a device initiates activation of the radio bearer upon receiving confirmation that the IMS bearer is activated, or initiates activation of the radio bearer a predetermined period of time after initiating activation of the IMS bearer. In various embodiments, staggered IMS bearer activation and radio bearer activation can prevent collisions at components of an Evolved Packet Core (EPC).

Abstract: Systems and methods for characterizing communications in a network are disclosed. The method includes obtaining records from multiple sources within the network; correlating the records according to one or more attributes of the communications facilitated by the network; and calculating one or more detailed metrics based on the correlation.

Abstract: Systems and methods are described herein for determining dropped call rates (DCR) for various communications networks, such as IP Multimedia Networks (IMS), which include Voice over LTE (VoLTE) networks. For example, the systems and methods utilize data (e.g. abnormal cause codes) generated by layers of the IMS networks, such as a Session Initiation Protocol (SIP) layer of the IMS network, when determining dropped call rates for IMS networks.

Abstract: Systems and methods are described herein for determining dropped call rates (DCR) for various communications networks, such as IP Multimedia Networks (IMS), which include Voice over LTE (VoLTE) networks. For example, the systems and methods utilize data (e.g. abnormal cause codes) generated by layers of the IMS networks, such as a Session Initiation Protocol (SIP) layer of the IMS network, when determining dropped call rates for IMS networks.

Abstract: Systems, methods, and computer-readable media are described for delivering wireless telecommunications services using the Voice over Long Term Evolution (VoLTE) protocol, the Video over Long Term Evolution (VoLTE) protocol, and other such protocols that implement the Real-Time Transport Protocol (RTP) to deliver packet flows to mobile devices. Metrics relating to the RTP packet flow may be generated, and may be collected from a mobile device periodically or on an as-needed basis. The RTP-based metrics may be utilized to determine that an LTE inter-frequency handover should be performed. Inter-frequency handover criteria may specify thresholds for RTP metrics within an individual reporting period, or may be used to determine that an inter-frequency handover will occur if a rolling or weighted average of RTP metrics satisfies a threshold.

Abstract: Systems and methods for managing timers for Session Initiation Protocol (SIP) that facilitates network communications in an IP Multimedia Subsystem (IMS) are disclosed. Based on monitored network traffic, network performance measures can be determined to form a basis for dynamic configuration of SIP timers, which may reflect real time network status and optimize SIP based network communication.

Abstract: A system for communicating to an Internet Protocol Multimedia Subsystem (IMS) network mobility events occurring in a telecommunications access network. A mobile device connects to a first base station and registers on an IMS network. A component in the IMS network, such as a telephone application server (TAS), stores the first identifier. In addition, the TAS creates or modifies a call detail record (CDR) to indicate that the mobile phone is connected to the base station. After a handover occurs from the first base station to a second base station, the mobile device transmits to the IMS network a second identifier that identifies the second base station. The mobile device transmits the identifier of the second base station to the TAS within the IMS network via an XCAP PUT or POST request. After receiving the second identifier, the TAS stores the identifier and modifies a CDR to reflect the identifier.

Abstract: A system for communicating to an Internet Protocol Multimedia Subsystem (IMS) network mobility events occurring in a telecommunications access network. A mobile device connects to a first base station and registers on an IMS network. A component in the IMS network, such as a telephone application server (TAS), stores the first identifier. In addition, the TAS creates or modifies a call detail record (CDR) to indicate that the mobile phone is connected to the base station. After a handover occurs from the first base station to a second base station, the mobile device transmits to the IMS network a second identifier that identifies the second base station. The mobile device transmits the identifier of the second base station to the TAS within the IMS network via an XCAP PUT or POST request. After receiving the second identifier, the TAS stores the identifier and modifies a CDR to reflect the identifier.

Abstract: Systems and methods for managing timers for Session Initiation Protocol (SIP) that facilitates network communications in an IP Multimedia Subsystem (IMS) are disclosed. Based on monitored network traffic, network performance measures can be determined to form a basis for dynamic configuration of SIP timers, which may reflect real time network status and optimize SIP based network communication.

Abstract: Systems, methods, and computer-readable media are disclosed for managing performance of communications over a Voice over Long Term Evolution (VoLTE) network. A packet flow associated with a VoLTE call may be monitored, and an interruption in the packet flow that exceeds a threshold duration may be determined to be an abnormal termination of the VoLTE call. Information regarding the abnormal VoLTE call termination may be propagated through various network platforms to an enhanced Node B (eNB), where an abnormal VoLTE call termination event may be logged. The abnormal VoLTE call termination event may be utilized when analyzing the performance of the VoLTE network.

Abstract: A wireless communication device is configured to determine a speed at which it is moving based on timing advance values, which are provided by a base station in order to synchronize TDMA communications. The timing advance values are received at periodic intervals, and indicate by how much time the device should advance its data bursts so that they arrive at the base station within the correct TDMA timeslot. Each timing advance value can be multiplied by the length of a timeslot and by the propagation speed of radio waves to determine the distance of the device from the base station. The speed of the device can be determining by analyzing changes in this distance over time. When the device detects that it is moving at greater than a threshold speed, the device disables certain activities or functions that might be distracting to a driver of a vehicle.

Abstract: The disclosed system provides a facility to communicate to an Internet Protocol Multimedia Subsystem (IMS) network an indication of mobility events occurring in a telecommunications access network. A mobile device connects to a first base station (e.g., an “eNodeB”) and registers on an IMS network. A component in the IMS network, such as a telephone application server (TAS), stores the first identifier. In addition, the TAS creates or modifies a call detail record (CDR) to indicate that the mobile phone is connected to the base station. After a handover occurs from the first base station to a second base station, the mobile device transmits to the IMS network a second identifier that uniquely identifies the second base station. The mobile device transmits the identifier of the second base station to the TAS within the IMS network via, e.g. an XCAP PUT or POST request.

Abstract: Systems and methods for managing communications among a central entity and multiple local entities in a telecommunication core network are disclosed. Localized central entities may be established across the core network based on localization patterns of telecommunication devices. The localized central entities may duplicate a portion of central entity data and provide local entities more efficient access to the data.

Abstract: A wireless communication device is configured to determine a speed at which it is moving based on timing advance values, which are provided by a base station in order to synchronize TDMA communications. The timing advance values are received at periodic intervals, and indicate by how much time the device should advance its data bursts so that they arrive at the base station within the correct TDMA timeslot. Each timing advance value can be multiplied by the length of a timeslot and by the propagation speed of radio waves to determine the distance of the device from the base station. The speed of the device can be determining by analyzing changes in this distance over time. When the device detects that it is moving at greater than a threshold speed, the device disables certain activities or functions that might be distracting to a driver of a vehicle.

Abstract: Systems and methods are described herein for determining dropped call rates (DCR) for various communications networks, such as IP Multimedia Networks (IMS), which include Voice over LTE (VoLTE) networks. For example, the systems and methods utilize data (e.g. abnormal cause codes) generated by layers of the IMS networks, such as a Session Initiation Protocol (SIP) layer of the IMS network, when determining dropped call rates for IMS networks.