T-mobile Usa, Inc.

Wafik Abdel Shahid

Ming Shan Kwok

Yasmin Karimli

Thomas P Lucht

Wei-Ming Lan

Scott Francis Migaldi

Boris Antsev

Shuqing Xing

Gunjan Nimbavikar

John J Humbert

Suresh Thanneeru

Kyeong Hun An

Shujaur Rehman Mufti

Hsin-Fu Henry Chiang

Jun Liu

Zeeshan Jahangir

Hsin Fu Henry Chiang

Neng-Tsann Ueng

Boua Lor

Syed Toaha Ahmad

Terri L Brooks

Joshua Finger

Nishant Patel

Carl Williams

Jean Cheryl Trakinat

Gina Tran

Hang Hoi Yau

Geoffrey Todd Gibson

Mehmet Hinc

A user equipment (UE) may support establishing an E-UTRAN New Radio-Dual Connectivity (EN-DC) connection with a telecommunication network that involves both a Long-Term Evolution (LTE) connection and a fifth generation (5G) connection. However, the EN-DC connection may drain a battery of the UE more quickly than the LTE connection would alone. Accordingly, an EN-DC switcher executing on the UE can determine when the UE should use the LTE connection alone or use the EN-DC connection, for example based on factors that may indicate when a user of the UE is less likely to perceive improved throughput or other benefits of the EN-DC connection.

Battery management using selective EN-DC enablement

Systems, devices, and techniques described herein relate to handover between Non-Standalone (NSA) and Standalone (SA) networks. An example method includes receiving, from a User Equipment (UE), a measurement report indicating that a signal threshold has been satisfied. In response to receiving the measurement report, handover of a communication session from a first core network to a second core network may be initiated. A message confirming that the communication session has been handed over from the first core network to the second core network can be received. In response to receiving the message, handover of the communication session can be initiated between a single radio bearer associated with a first Radio Access Technology (RAT) and a dual radio bearer associated with the first RAT and a second RAT.

Handover between non-standalone and standalone networks

A roadside unit (RSU) receives, from a first set of on-board units (OBUs) of a first set of vehicles, messages describing events triggered by the first set of OBUs in response to basic safety messages (BSMs). Each BSM is received by a vehicle from the RSU or another vehicle over a PC5 interface. Each vehicle is operating at less than a threshold distance from the RSU. A timestamp is assigned to each event. A feature vector is extracted from the timestamped events. A machine learning model generates an update to functionality of the RSU based on the feature vector. The machine learning model is trained to update the functionality for vehicular management. The RSU is operated using the updated functionality to communicate with a second set of OBUs of a second set of vehicles for preventing vehicular collisions among the second set of vehicles.

Generation of C-V2X event messages for machine learning

The disclosed technology provides a system and method for determining an uplink (UL) waveform for a mobile device to use for UL transmission in carrier aggregation or dual connectivity modes, where the UL waveform is selected to eliminate or minimize the deleterious effects of intermodulation distortion (IMD). The system identifies frequency bands scheduled for use by the mobile device for concurrent UL transmissions and for DL transmissions and determines if the combination of frequency bands can lead to high IMD. If the combination can lead to high IMD, the system can instruct the mobile device to switch to a Discrete Fourier Transform (DFT)-spread Orthogonal Frequency Division Multiplexing (OFDM) (DFT-s-OFDM) waveform for UL transmissions; if the combination would not likely lead to high IMD, the system can instruct the mobile device to switch to a Cyclic Prefix OFDM (CP-OFDM) waveform for the UL transmissions.

5G new radio uplink intermodulation distortion mitigation

Systems and methods are provided for centralized uplink technology control. A method includes receiving, over a network, from at least one wireless device, a capability report identifying wireless device uplink capabilities and determining uplink capabilities for the network. The method includes identifying matching network and wireless device uplink capabilities identifying radio frequency (RF) parameters for the wireless device and selecting an uplink technology for the wireless device from the matched network and wireless device uplink capabilities based on the RF parameters in order to optimize functionality of the wireless device.

Automated management of uplink technologies for optimal experience

A user equipment (UE), such as a mobile phone, may support multiple power classes. Power classes can define maximum output power levels for uplink transmissions. A base station of a radio access network (RAN) can, based on metrics reported by the UE, dynamically instruct the UE to switch to using a different power class. For example, the base station may instruct the UE to switch from using a first power class with a higher maximum output power to using a second power class with a lower maximum output power, in order to preserve battery life of the UE in situations in which the second power class provides sufficient output power for uplink transmissions to reach the base station.

Dynamic switching of user equipment power class

Systems, devices, and techniques described herein relate to intelligently allocating network resources to Quality of Service (QoS)-sensitive data traffic. An example method includes identifying a request to deliver QoS-sensitive services to a User Equipment (UE) over at least one delivery network. The at least one delivery network may include at least one reserved resource and at least one pooled resource. The QoS-sensitive services are determined to be delivered over the at least one pooled resource. In addition, delivery of the QoS-sensitive services is caused over the at least one pooled resource.

Intelligent allocation of network resources

A radio access network (RAN) configured to support real-time communications over a Long-Term Evolution (LTE) connection is described herein. When a request for a data transmission is received and a real-time communication session over the LTE connection is established, the RAN utilizes the LTE connection, not a New Radio (NR) connection, for the data transmission. When a request for a further real-time communication is received and there is an active data transmission session over the NR connection, the RAN performs at least one of ceasing to allocate traffic to the NR connection for downlink or reconfiguring the data transmission session to send data over the LTE connection.

5G avoidance during LTE-based real-time communications

A 5-Generation (5G) cellular communication device may at times be used with a legacy subscriber identifier module (SIM) that does not support 5G subscriber identity privacy features. To obtain a subscriber identifier for authentication, the device attempts to obtain or generate a concealed subscriber identifier with the support of the current SIM. If this is not possible, as may be the case with legacy, non-5G SIMs, the device determines whether the home network specified by the SIM is the network of the provisioning operator. If so, the device obtains an unconcealed subscriber identifier from the SIM, encrypts it with the provisioned home network key, and uses the resulting concealed subscriber identifier for authentication. If the home network specified by the SIM is a network other than that of the provisioning network operator, the device obtains the unconcealed subscriber identifier from the SIM and uses it for authentication.

System and methods for subscriber identifier authentication and privacy

Techniques for measuring and reducing signal misalignment in a dual connectivity environment are discussed herein. When using Non-Standalone Architecture (NSA), a device initially communicates with a network using a Long-Term Evolution (LTE) connection. After the LTE connection is established, an LTE base station may instruct the device to measure signal strength of a neighboring New Radio (NR) cell during a specified LTE measurement gap. When the NR cell is implemented by an indoor NR base station, the NR signal may not be sufficiently synchronized with the LTE signal and the device may be unable to measure the NR signal during the measurement gap. In these cases, the device can determine the frame timing difference between the LTE and NR signals, obtain an adjusted measurement gap that reduces any measurement gap misalignment, and attempt to measure the signal strength of the NR cell using the adjusted measurement gap.

Non-Standalone Architecture frame alignment

Techniques for dynamically adjusting Connected Mode Discontinuous Reception (CDRX) parameters are discussed herein. For example, a base station may receive information associated with downlink data to be sent to a user equipment (UE) and/or information associated with the UE itself. The base station may adjust CDRX parameters to be implemented on the UE based on the received information in order to maximize performance of the UE. In some examples, the base station may adjust CDRX parameters based on a traffic type (e.g., voice traffic, video traffic, data traffic, etc.) associated with the downlink data, UE state parameters associated with the UE, and/or Received Signal Strength Indicator (RSSI) data associated with the UE.

Connected mode discontinuous reception enablement and parameter adaptation

A mobile communication network receives capability information from a user equipment (UE) where the capability information indicates a version of the UE which the network uses to determine a 3GPP Release version of the UE. Based on the 3GPP release version, the network determines what type of system information (e.g., System Information Blocks (SIBs)) the UE requires, and transmits the required system information to the UE. Legacy UEs receive only legacy SIBs and non-legacy UEs receive one or more non-legacy SIBs in addition to the legacy SIBs.

UE-capability-based system information block transmission

Solutions for access traffic steering, switching, and splitting (ATSSS) include: receiving, from a user equipment (UE), channel performance information for: a first channel passing from the UE, through a radio access network (RAN) and a packet routing node, to an external remote node, a second channel passing from the UE, through a local wireless node, a routing node, and the packet routing node, to the external remote node, and a third channel passing from the UE, through the local wireless node and an external computer network, to the external remote node; based on at least the channel performance information, selecting an initial channel from among the first channel, the second channel, and the third channel; and instructing the UE to steer a protocol data unit (PDU) session between the UE and the external remote node to at least the initial channel.

Intelligent access traffic steering, switching, and splitting (ATSSS)

A computer server receives messages from a computer device located in proximity to the computer server. The messages are generated by at least one vehicle and translated into IP packets using an N2 control plane interface and an N3 user plane interface implemented in the computer device. A message can include a direction of operation of a vehicle. From a mobile device, information is received describing motion of a user of the mobile device. The information includes a trajectory of the user. The mobile device and the vehicle are located at less than a threshold distance from the computer device. A potential collision is determined between the vehicle and the user based on the direction of operation of the vehicle and the trajectory of the user. An alert is sent to the mobile device indicating the potential collision.

C-V2X mobile edge computing interface for mobile services

Systems, methods, and devices can be utilized to schedule at least one Hybrid Automatic Repeat Request (HARQ) transmission and at least one HARQ feedback message in the same Physical Resource Block (PRB). A HARQ transmission can be scheduled in a mini-slot of the PRB. Accordingly, latencies associated with transmitting and receiving the PRB can be reduced, while the high reliability of HARQ can be retained. Implementations can be applied to 5G technologies such as Ultra Reliable Low Latency Communications (URLLCs) and enhanced Mobile BroadBand (eMBB), as well as other low-latency communications. A method can include determining a location of a device; selecting, based at least in part on the location of the device, a mini-slot size; scheduling, in one or more mini-slots having the mini-slot size in a PRB, a HARQ transmission; and transmitting, to the device, the HARQ transmission in the one or more mini-slots of the PRB.

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Kenmore, WA, United States of America

Wafik Abdel Shahid