Apple Inc.

At&t Mobility Ii LLC

Sreevalsan Vallath

Sarma V Vangala

Tarik Tabet

Samy Khay-Ibbat

Navid Damji

Swaminathan Balakrishnan

Deepankar Bhattacharjee

Dawei Zhang

Wei Zeng

Rafael L Rivera-Barreto

Prateek Sharma

Muthukumaran Dhanapal

Madhusudan Chaudhary

Li Su

Thanigaivelu Elangovan

Paul V Flynn

Srinivasan Nimmala

Syed Aon Mujtaba

Jianxiong Shi

Lakshmi N Kavuri

Rajesh Ambati

Faraz Faheem

Chunxuan Ye

Fangli Xu

Yuchul Kim

Haijing Hu

Murtaza A Shikari

Zhu Ji

Ralf Rossbach

Naveen Kumar R Palle Venkata

Wanping Zhang

Raghuveer Mallikarjunan

Yingjie Zhao

Ajay Singh

Divyaprakash P Bhojkumar

Haitong Sun

Wei Zhang

Johnson O Sebeni

Jia Tang

Rohan C Malthankar

Carola Faronius

Arthur Richard Brisebois

Wen Zhao

Sree Ram Kodali

Ping Wang

Ajoy K Singh

Shivesh Makharia

Zhibin Wu

Yuqin Chen

Vijay Venkataraman

Vikram Bhaskara Yerrabommanahalli

Tianyan Pu

Christian W Mucke

Venkateswara Rao Manepalli

Ioannis Pefkianakis

Franco Travostino

Luciano Miguel Verger

Tahir Shamim

Harshit Chuttani

Sanjay K Verma

Longda Xing

Murali Narasimha

Arun Godfrey Mathias

Kee-Bong Song

Guoqing Li

Farouk Belghoul

Sami M Almalfouh

Vinay R Majjigi

Prashant H Vashi

Cesar Perez

Daniel R Borges

Srinivasan Vasudevan

Veerendra Boodannavar

Yaoqi Yan

Alan Tseng

Wenping Lou

Francisco J Gonzalez

Adesh Kumar

Vivek Ramanna

Wael S Barakat

Vijendrakumar K Ashiwal

S Aon Mujtaba

Si Li

Jishan Gao

Chiranjeevi M Kosuri

Neeraj D Vaghela

Sairam T Gutta

Gaurav Pathak

Raghuveer Mallikarjun

Neha Goel

Seyedamirhossein Hosseini

Ishwinder Singh

Described herein are solutions for reducing packet loss for low latency, low loss, scalable throughput (LAS) traffic. A user equipment (UE) can determine whether a base station is capable of supporting LAS traffic and can implement rate adaptation in different ways based on the LAS capabilities of the base station and active queue management (AQM) policies of the base station. A base station can establish protocol data unit (PUD) sessions between the UE and different instances of a network slice based on whether the base station receives packets from applications capable of LS4 rate adaptation. These and many other features and examples are described in additional detail.

Systems, methods, and devices for packet drop prevention with L4S

A processor determines that a UE operates in a DRX cycle including a DRX-on duration followed by a DRX-sleep duration. The processor configures a plurality of periodic uplink CG occasions within the DRX cycle. Each uplink CG occasion supports uplink transmission of a predefined size. The processor reads a data buffer to determine a size of accumulated data. At a given uplink CG occasion, the processor compares the size of accumulated data with an upper threshold data size and a lower threshold data size. Responsive to a first comparison result, the processor transmits the accumulated data over one or more uplink CG occasions starting from the given uplink CG occasion. Responsive to a second comparison result, the processor transmits a BSR at the given uplink CG occasion. Responsive to a third comparison result, the processor transmits neither the accumulated data nor the BSR at the given uplink CG occasion.

Processor and user equipment for reducing power consumption during DRX

A base station may operate in a context where the propagation delay between the base station and user equipment (UE) devices is large. The base station configures UE devices with a common delay. The base station receives a random access preamble from a UE device. The base station determines a time slot in which the random access preamble was transmitted, based on a configured correspondence between allowable time slots and subsets of an available set of preambles. The base station computes a Random Access Radio Network Temporary Identifier (RA-RNTI) based on parameter values including an index, of the determined time slot. The base station employs the computed RA-RNTI to address a random access response for the UE device.

Resolution of mismatch in calculation of random access radio network temporary identifier

Techniques described herein may enable a user equipment (UE) to optimize radio access technology (RAT) and radio resources (e.g., bandwidth parts (BWPs)) when communicating with the network. This may be based on one or more factors or conditions, such as whether the UE is currently using 4th generation (4G) RAT or 5th generation (5G) RAT, whether the UE is in an active mode or idle mode, a BWP used by the UE, whether an application or network service requires a certain throughput, a type of application being used by the UE, an amount of network congestion, and so on. RAT optimization may also be based on whether the UE is using a frequency range 1 (FR1) or frequency range 2 (FR2), whether the UE is stationary or moving, whether the UE is experiencing beam failures, uplink (UL) switches, link quality measurements (LQMs), reference signal received power (RSRP) measurements, and so on.

Systems, methods, and devices for optimizing radio access technology and resource selection

A method for managing a QoE for a UE in a communications network is provided. The method includes determining, based at least on data received in a communications session, one or more parameters affecting the QoE. The method includes determining weights corresponding to the one or more parameters. The method includes computing an expected QoE for the UE based on the determined weights corresponding to the one or more parameters. The method includes determining that the expected QoE satisfies a threshold. The method includes transmitting, to one or more network nodes in the communications network, the determined weights corresponding to the one or more parameters. The method also includes adjusting the communications session at the UE.

Managing quality of experience in communications networks

This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A user equipment device (UE) may transmit to abase station (BS) a first buffer status report (BSR) indicating an amount of uplink data buffered by the UE for transmission to the BS, and may subsequently transmit to the BS a first BSR update message indicating that an additional amount of uplink data has been buffered by the UE subsequent to transmission of the first BSR. The first BSR update message may be transmitted prior to expiration of a timer authorizing transmission of a second BSR following the first BSR. The UE may receive from the BS an uplink grant allocating resources for transmission of at least a portion of the uplink data buffered by the UE. The uplink grant may have a size based on the first BSR and the first BSR update message.

User equipment (UE) supplemental BSR for reduced latency in high-propagation-delay networks

A user equipment (UE) device may perform random access to a base station in the context where propagation delay between the base station and the UE device is large. The UE device randomly selects a random access preamble from an available set of preambles. The UE device selects a time slot for transmission of the random access preamble based on a configured correspondence between allowable time slots and subsets of the available set. The UE device transmits the random access preamble to a base station in the selected time slot, with timing advance to compensate for a common delay. Thus, the base station, knowing the configured correspondence, is able to determine the time slot in which the random access preamble was transmitted. The UE device receives a random access response that has been addressed with a Random Access Radio Network Temporary Identifier (RA-RNTI).

Random access preamble transmission using a timing-based partition of preamble space

A user equipment device may determine whether to power down one or more components based at least on a scheduling parameter that includes an indication of cross-slot scheduling. The device may power down the one or more components prior to decoding control information during a slot for which the scheduling parameter indicates that cross-slot scheduling is in place.

Cross-slot scheduling for new radio

A device may obtain, through wireless signaling from a network, a time-domain wireless-resource allocation (TWRA) pattern allocated to the device by the network and corresponding to a future time interval (TTI) for which the device has not yet decoded corresponding control information. This enables the device to conduct wireless communications during the TTI using resources allocated according to the obtained TWRA pattern, without first having to decode control information to identify the TWRA pattern. The device may obtain the TWRA pattern by obtaining an indication from the network that the TWRA pattern remains associated with future wireless communications of the device until indicated otherwise by the network, and/or by transmitting to the network an indication of preferred parameters associated with the future wireless communications and the TWRA pattern, and/or by transmitting to the network a request to have the network change from a different TWRA pattern to the TWRA pattern.

Reduced power consumption by obtaining time domain resource allocation patterns in advance via additional signaling

This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A base station may receive from user equipment device (UE) a random access initiation message, having a characteristic that is configured to indicate to the base station a requested size of a subsequent uplink grant to be provided by the base station for transmission of uplink data by the UE. For example, the characteristic may include a predetermined preamble included in the random access initiation message, such that a requested grant size is indicated by which preamble the UE selects from a plurality of possible preambles. As another example, the characteristic may include which RACH occasion is selected by the UE to transmit the random access initiation message. In response, the base station may allocate resources for use by the UE based on the characteristic.

Base station (BS) RACH procedures for reduced latency in high-propagation-delay networks

This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A base station (BS) may receive from a user equipment (UE) a first buffer status report (BSR) indicating an amount of uplink data buffered by the UE for transmission to the BS, and may subsequently receive a first BSR update message indicating that an additional amount of uplink data has been buffered by the UE subsequent to transmission of the first BSR. The first BSR update message may be received prior to expiration of a timer authorizing transmission of a second BSR following the first BSR. In response, the BS may allocate resources for transmission to the UE, based on the first BSR and the first BSR update message. The BS may provide an uplink grant identifying the allocated resources.

Base station (BS) supplemental BSR procedures for reduced latency in high-propagation-delay networks

This disclosure relates to techniques for reducing latency in a high-propagation-delay wireless communication system. A user equipment device (UE) may transmit to a base station a random access initiation message, having a characteristic that is configured to indicate to the base station a requested size of a subsequent uplink grant to be provided by the base station for transmission of uplink data by the UE. For example, the characteristic may include a predetermined preamble included in the random access initiation message, such that a requested grant size is indicated by which preamble the UE selects from a plurality of possible preambles. As another example, the characteristic may include which RACH occasion is selected by the UE to transmit the random access initiation message. In response, the base station may allocate resources for use by the UE based on the characteristic.

User equipment (UE) RACH procedures for reduced latency in high-propagation-delay networks

A user equipment (UE) is configured with a carrier aggregation (CA) functionality and UE connected to a network via a base station that serves as a primary serving cell (PCell) providing a primary component carrier (PCC) to the UE. The UE determines a plurality of bands that are supported by the UE for use in the CA functionality, generates an individual band information element (IE) including band information for the bands, determines at least one representative CA combination having an order, the order indicating a total number of component carriers (CCs), the at least one representative CA combination forming a basis to extrapolate a plurality of CA combinations having the order based on the band information, generates a representative CA combination IE including the at least one representative CA combination and transmits the individual band IE and the representative CA combination IE to the base station.

Carrier aggregation capability advertisement

This disclosure relates to techniques for providing a framework for supporting custom signaling between a wireless device and a cellular network. A wireless device and a cellular base station may establish a wireless link. The wireless device and the cellular base station may perform custom signaling in accordance with the custom signaling framework.

Framework for supporting custom signaling between a wireless device and a cellular network

A user equipment (UE) passively determines the presence of a cellular network bottleneck in a downlink channel and may take appropriate actions to mitigate the bottleneck. The UE may analyze the transport block size (TBS) of slots of received downlink traffic and assign states the to various slots based on this analysis. Based on these assigned states, the UE may identify a burst of network traffic from network traffic received from the cellular network, and the UE may also determine the burst duration as well as a busy estimation. The UE may determine that the cellular network is experiencing a bottleneck based at least in part on the burst duration and the busy estimation.

Detecting cellular network bottlenecks using data allocation patterns

Growing community of inventors

Dublin, CA, United States of America

Sreevalsan Vallath