Abstract: Methods, devices, and system related to wireless communications are disclosed. In one example aspect, a device for wireless communication includes a processor that is configured to determine an estimation of an interference signal for a connection between the device and a receiving device in a wireless communication system, construct an interference elimination signal based on the estimation of the interference signal, and perform a data transmission to the receiving device with the interference elimination signal to enable the receiving device to eliminate the interference signal in the data transmission. The estimation of the interference signal is determined by building a probabilistic model of the interference signal using at least an interference template associate with a characteristic of the device or one or more measurements of a channel condition collected within a predefined observation window.

Abstract: A computer-implemented method of reducing disruption in a cellular network. The method includes receiving a node table including IMS nodes. The IMS nodes include nodes designated as voice nodes and nodes designated as message nodes. The method includes transmitting the node table to user devices in the cellular network, and receiving a first register request from a user device including an IP address of a message node. In response to receiving the first register request, the method includes transmitting the first register request to the IP address of the message node included in the first register request, and receiving a second register request from the user device, the second register request including an IP address of a voice node. The method includes transmitting the second register request to the IP address of the at least one of the one or more voice nodes included in the second register request.

Abstract: Systems and methods are provided for enhancing radio base station performance measurements with additional granularity. Radio base station key performance indicators (KPIs) are provided that may be broken down by user equipment (UE) type or model, public land mobile network (PLMN) identification (ID), service type, and the like. To do so, the attributes in radio resource control (RRC) messages between UEs & 4G/5G base stations (i.e., an eNodeB or a gNodeB) can be leveraged to define key flags from different signaling steps and enrich KPI pegging. The key flags from the various RRC signaling steps can be used by counters, at the base station, to identify various key service and network level KPI metrics based on UE type or model, PLMN ID, service type, and the like.

Abstract: The disclosed system receives, from a controller associated with an unmanned vehicle, a first instruction to deliver to the unmanned vehicle. The first instruction is delivered to a network through a radio frequency channel associated with the network. The controller provides a coverage area in which the controller can directly communicate with the unmanned vehicle, however, the unmanned vehicle is outside of the coverage area associated with the controller. The system converts the first instruction received through the radio frequency channel to a second instruction encoded in a second medium. The system delivers the second instruction to the unmanned vehicle using a first antenna operating in the second medium. The unmanned vehicle includes a receiver configured to operate in the second medium. The first antenna is oriented to provide coverage in a geographical area in which the network does not provide radio frequency coverage.

Abstract: Providing a data traffic session over a wireless network using service-aware traffic session timers includes: receiving, from a user equipment (UE), at a wireless network node, a session message for the data traffic session; based on at least content within the session message, determining a data traffic session type; based on at least the data traffic session type and a stage of the data traffic session, selecting a timer value from a set of timer values, the set of timer values each specific to a type of data traffic session; and based on a timer at the wireless network node reaching the selected timer value, performing a predetermined timer expiration action for the data traffic session. In some examples, the data traffic session type may be a non-emergency voice call, an emergency call, a video call, a wireless customer service call, or a messaging session.

Abstract: In various embodiments, a system for identifying a vertical height of a user equipment using network-side components, instead of device-side components, is described. The system may include a fixed antenna of a node and a processor. The antenna sends a first beam having a first set of beam characteristics and receives a first signal strength indication from the user equipment based upon the first beam. The antenna then sends a second beam having a second set of beam characteristic and receives a second signal strength indication from the user equipment based upon the second beam. The processor may then analyze the first signal strength and the second signal strength to determine the vertical height of the user equipment, such as by a trigonometric calculation based upon an inclination of the beams and various known distances.

Abstract: Systems and methods are provided for an improved tracking area update(TAU) procedure for minimizing service interruptions for wireless devices. In embodiments herein, wireless devices set a delay timer upon experiencing a triggering event. Upon termination of the triggering event, the wireless devices are able to complete the TAU procedure if the delay timer has not yet expired.

Abstract: Methods, devices, and system related to wireless communications are disclosed. In one example aspect, a method for wireless communication includes receiving, by a first access node in a first type of communication network, a request from a wireless device to establish a voice session with an Internet Protocol Multimedia System (IMS); initiating, by the first access node, an IMS voice session establishment for the wireless device; configuring, by the first access node, a Quality of Service (QoS) for the IMS voice session using a Protocol Data Unit (PDU) session modification request; and determining, in part based on one or more capabilities of the wireless device, to refrain from triggering a fallback to a second type of communication network for the IMS voice session establishment.

Abstract: Systems may comprise a connectivity manager application operating on a User Equipment (UE) for optimal and secure performance of local applications and improving user experience by optimizing application performance (e.g., detecting data stall events). The systems may monitor incoming internet protocol (IP) packets for one or more applications operating on the UE. The connectivity manager application may detect a drop in a rate at which the IP packets are received over a period of time and determine to reregister and/or reattach to a different node within a network or at a new network.

Abstract: Providing a data traffic session over a wireless network using service-aware traffic session timers includes: receiving, from a user equipment (UE), at a wireless network node, a session message for the data traffic session; based on at least content within the session message, determining a data traffic session type; based on at least the data traffic session type and a stage of the data traffic session, selecting a timer value from a set of timer values, the set of timer values each specific to a type of data traffic session; and based on a timer at the wireless network node reaching the selected timer value, performing a predetermined timer expiration action for the data traffic session. In some examples, the data traffic session type may be a non-emergency voice call, an emergency call, a video call, a wireless customer service call, or a messaging session.

Abstract: Systems and methods for deriving and providing mobile device locations are disclosed. The method includes a communication network detecting one or more triggering conditions. Based on the triggering conditions, the network may derive a current location of the mobile device. The current location may be sent to the mobile device and/or another device communicating with the mobile device.

Abstract: Methods, devices, and system related to wireless communications are disclosed. In one example aspect, a device for wireless communication includes a processor that is configured to determine an estimation of an interference signal for a connection between the device and a receiving device in a wireless communication system, construct an interference elimination signal based on the estimation of the interference signal, and perform a data transmission to the receiving device with the interference elimination signal to enable the receiving device to eliminate the interference signal in the data transmission. The estimation of the interference signal is determined by building a probabilistic model of the interference signal using at least an interference template associate with a characteristic of the device or one or more measurements of a channel condition collected within a predefined observation window.

Abstract: Methods, devices, and systems related to wireless communications are disclosed. In one example aspect, a device for wireless communication includes a processor that is configured to receive an enquiry message from a base station enquiring capability information of the terminal device and transmit a response message to the base station indicating one or more templates of capability information determined according the one or more radio access technologies and a list of frequency bands.

Abstract: A system for routing real-time cellular network services including a voice CSCF including a voice P-CSCF server, a voice I-CSCF server, and a voice S-CSCF server. The system included a message CSCF including a message P-CSCF server, a message I-CSCF server, and a voice S-CSCF server. The system includes a traffic node including one or more processors in communication with a memory containing processor-executable instructions to receive a register request from a user device, where the register request includes one of a voice indicator or a message indicator. The memory also contains processor-executable instructions to identify whether the register request includes the voice indicator or the message indicator and transmit the register request to the voice CSCF when the voice indicator is identified and transmit the register request to the message CSCF when the message indicator is identified.

Abstract: Systems and methods are provided for performing channel estimation in a multiple input multiple output (MIMO) based cellular radio technology (e.g., 4G, 5G). Initially, the reference transmission receive power (RSRP) is reported for each antenna element, rather than as a single RSRP. This enables the base station to understand the channel condition for each MIMO transmission/reception. Using that understanding, the base station can determine the radio-frequency (RF) power level per antenna port to provide more enhanced transmission towards a specific UE, resulting in a better service experience. In other words, more accurate channel estimation based on actual RF conditions of a particular UE can be derived so the base station can tune to the actual need of the UE.

Abstract: A user equipment (UE) can determine when to send an initial request for a voice communication to an Internet Protocol (IP) Multimedia Subsystem (IMS) core of a telecommunication network. For instance, the UE can identify when a call setup instruction should be sent to the IMS to cause a communication channel to be established. The UE can determine whether the UE will experience a change to another radio frequency band or radio technology based on test data, and delay sending the call setup instruction for a time period during which the test data can be analyzed.

Abstract: In various embodiments, a system for identifying a vertical height of a user equipment using network-side components, instead of device-side components, is described. The system may include a fixed antenna of a node and a processor. The antenna sends a first beam having a first set of beam characteristics and receives a first signal strength indication from the user equipment based upon the first beam. The antenna then sends a second beam having a second set of beam characteristic and receives a second signal strength indication from the user equipment based upon the second beam. The processor may then analyze the first signal strength and the second signal strength to determine the vertical height of the user equipment, such as by a trigonometric calculation based upon an inclination of the beams and various known distances.

Abstract: Systems and methods are provided for dynamically adjusting a 4G LTE reference signal power level to match a 5G New Radio (NR) coverage footprint to avoid voice over 4G fallback failures for 5G subscribers. Initially, a subscriber making a voice call while in NR coverage may be directed to fall back to LTE in a process known as voice over evolved packet system fallback (VoEPSFB). If the LTE signal strength is worse due to non-optimal settings of the LTE reference signal, the subscriber experiences call setup failure. After the call setup failure, the UE transitions back to the gNodeB. Since the gNodeB knows the UE attempted to fall back to LTE (as well as how soon the UE transitioned back to the gNodeB), a notification is triggered that instructs the LTE base station to increase its reference signal power level.

Abstract: Systems, devices, and techniques described herein relate to use of an optimized security mode command (SMC) procedure for securing communications. When connecting to a different cellular network (e.g., from a 5th generation (5G) Radio Access Network (RAN)) to a different cellular network (e.g., a 4th generation (4G) RAN), a User Equipment (UE) performs the SMC procedure without processing subsequent commands until a period of time has elapsed. Instead of allowing the UE to process subsequent commands received close in time to receiving the SMC, the subsequent commands may be delayed/suspended so that the UE has time to perform the SMC procedure and establish secure communications with the 4G LTE network. According to some examples, the delay is set to a period of time (e.g., 1 ms, 10 ms, or some other value) such that the subsequent command does not interfere with performing the SMC procedure.

Abstract: Methods, devices, and system related to adaptive determination of payload sizes based on usage patterns of the contents are disclosed. In one example aspect, an apparatus for wireless communication includes a processor that is configured to transmit a first data packet associated with a first network content to a user device, receive a request from the user device indicating a switch to a second network content from the first network content, determine a usage pattern associated with the first network content based on information included in at least the first data packet and the request, and adaptively change, based on the usage pattern, a payload size of a second data packet associated with a subsequent transmission of the first network content.