Qualcomm Incorporated

Motorola Corporation

Motorola Solutions, Inc.

Meshnetworks, Inc.

Arris Enterprises LLC

Shyamal Ramachandran

Thomas Klingenbrunn

Srinivasan Balasubramanian

Arvind Swaminathan

Vitaly Drapkin

Xipeng Zhu

Min Wang

Bhupesh Manoharlal Umatt

Masato Kitazoe

Aziz Gholmieh

Gavin Bernard Horn

Tom Chin

Kuo-Chun Lee

Uppinder Singh Babbar

Daniel Amerga

Amit Mahajan

Arvind Vardarajan Santhanam

Miguel Griot

Young Cheul Yoon

Guenael T Strutt

Swaminathan Sureshchandran

Srivatsa Venkata Chivukula

Zhong Ren

Jun Wang

Raghu Narayan Challa

Philippe J Sartori

Osok Song

Avinash Joshi

Lorenzo Casaccia

Eugene Visotsky

Nitin Pant

Keith J Goldberg

Krishna Rao Mandadapu

Muralidharan Murugan

Abhishek Bhatnagar

Kiran Patil

Dinesh Dharmaraju

Pradeep Sagane Gowda

George Cherian

Arnaud Meylan

Peerapol Tinnakornsrisuphap

Parag Arun Agashe

Haris Zisimopoulos

Fatih Ulupinar

Reza Shahidi

Mungal Singh Dhanda

Francesco Grilli

Amir Aminzadeh Gohari

Hrishikesh Gossain

Adrian Edward Escott

Ajith Tom Payyappilly

Manoj Madhukar Deshpande

Qingxin Chen

Luis Fernando Brisson Lopes

Supratik Bhattacharjee

Kirankumar Bhoja Anchan

Thawatt Gopal

Ravindra Manohar Patwardhan

Peter Stanforth

Francesco Pica

Ramachandran Subramanian

Aparna Pandey

Pertti O Alapuranen

Charles R Barker

Francis M Ngai

Feilu Liu

Masakazu Shirota

Surong Zeng

Wolfgang Granzow

Navid Ehsan

Neha Goel

Gurvinder Singh Chhabra

Arun Prasanth Balasubramanian

Hariharan Sukumar

Vamsi Dokku

Sathish Krishnamoorthy

Mouaffac Ambriss

Mukesh Kumar Mittal

Mutaz Zuhier Afif Shukair

Cherng-Shung Hsu

Nieyan Geng

Joshua Tennyson MacDonald

Uttam Pattanayak

William Vann Hasty, Jr

Bhanu Kiran Janga

Salil Sawhney

Heyun Zheng

Sebnem Z Ozer

Fahed Zawaideh

Sebnem Zorlu Ozer

Ajit Gupta

Sunil Suresh Patil

Tony Zhou Lee

Chinmay Dhodapkar

Abhijeet Prasad

Carl Qu

Pankaj Aggarwal

Saad Zaidi

Sudhendra Kumar Gupta

Joe Thomas

This disclosure provides systems, methods, apparatuses and computer-readable medium for wireless communication. In some aspects, a user equipment (UE) may receive, from a first base station (BS) associated with a fifth generation New Radio (5G NR) radio access technology (RAT), a command of mobility from the 5G NR RAT to a second RAT. The UE may determine that the command of mobility is for voice fallback. The UE may transmit, to a second BS associated with the second RAT and based at least in part on determining that the command of mobility is for voice fallback, a radio resource control (RRC) connection request communication for attempting to communicatively connect with the second BS for voice fallback.

Voice fallback in 5G NR

Methods, systems, and devices for wireless communications are described that provide for a user equipment (UE) to report packet switched voice call capabilities to a base station. The UE may explicitly report voice call capabilities via one or more system-level parameters that are transmitted to the base station. The base station may operate in a first radio access network (RAN), such as a 5G or new radio (NR) RAN. In cases where the UE indicates a capability for packet switched voice calls via the first RAN, one or more voice calls may be established with the UE via the first RAN. In cases where the UE indicates that it is not capable of packet switched voice calls via the first RAN, the UE may fall back to a different RAN (e.g., a 4G or LTE RAN, a 3G RAN, or a 2G RAN) for voice calls.

Packet switched voice call capability indication in wireless communications

A method and apparatus for selecting an access point (AP) for providing a service at a user equipment (UE). The example method may identify, by a user equipment (UE), a first AP available for communication. The example method may determine, by the UE, whether the first AP is suitable based, at least in part, on an indication for the first AP in an AP history table stored in a memory of the UE, wherein the indication is based on UE-determined metrics determined during one or more prior communications between the UE and the first AP. The example method may also include establishing communication between the UE and the first AP, in response to determining that the first AP is suitable.

Multimedia session continuity and domain selection based on user equipment learning and history

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may set a value associated with a delay budget report information element based at least in part on determining that the UE is to employ low latency communication with or via a base station. The UE may transmit a message, that includes the value associated with the delay budget report information element, to the base station to indicate that low latency communication is to be employed in association with a default bearer established between the UE and the base station. Numerous other aspects are provided.

Low latency operation

Methods and apparatus are provided for avoiding attempts by a UE to attach to a RAT network when that RAT network is unavailable. According to certain aspects, the UE may detect scenarios when the RAT network is unavailable and take preemptive action to prevent the UE from attempting to acquire service on that RAT. For example, the UE may effectively remove that RAT from a list of supported RATs by sending a UE capability message indicating that RAT is not supported, which may prevent network-initiated transitions of the UE to that RAT. The UE may also remove the unavailable RAT from an internal list of supported RATs, which may prevent UE-initiated transitions to that RAT.

Methods and systems for avoiding transitions between radio access technologies when packet data networks are inaccessible

In a particular aspect, an apparatus includes a de-jitter buffer configured to store a plurality of audio packets received from a source device. The apparatus includes de-jitter buffer control circuitry configured to adjust at least one bound of a target delay range associated with the de-jitter buffer based at least in part on an estimated jitter associated with the plurality of audio packets, an estimated underflow rate associated with the plurality of audio packets, or both. The apparatus includes a processor configured to generate an audio signal based on the plurality of audio packets stored at the de-jitter buffer. The apparatus includes a receiver configured to receive the plurality of audio packets via a network from the source device. The apparatus further includes a speaker configured to output the audio signal.

Apparatus and method for adaptive de-jitter buffer

A method of smart coding mode switching includes receiving a first data including a primary copy and a partial copy. The method includes determining if switching a coding mode from channel aware mode to non-channel aware mode may be advantageous. The method further includes transmitting a request to another device for coding mode switch in response to determination result. The method includes receiving and decoding of a second data that includes a primary copy.

Smart coding mode switching in audio rate adaptation

Systems and methodologies are described herein that facilitate efficient transfer of quality of service (QoS) context during inter-radio access technology (RAT) handovers. In particular, techniques are described herein for establishing rules for whether a user equipment unit (UE) or an associated network should establish QoS for a mixed-mode application, identifying flow to bearer mappings when translating QoS across an inter-RAT handover, mapping QoS parameters of respective RATs, mitigating QoS depreciation upon multiple handovers, performing one or more actions if QoS is not acceptable in a new RAT, maintaining QoS during tunnel mode, and handling scenarios in which a UE moves between a RAT using network-initiated QoS and a RAT using UE-initiated QoS.

Method and apparatus for QoS context transfer during inter radio access technology handover in a wireless communication system

An access terminal pre-registers with a second access network via a first access network to ensure a quick handover in the future. Frequent pre-registration attempts are avoided by implementing a hysteresis timer that restricts when a pre-registration process can be initiated. The hysteresis timer is started when pre-registration is initiated by the access terminal. No new pre-registration attempts are permitted if the hysteresis timer has not expired. An abort condition can cause the hysteresis timer to be aborted early, and a new pre-registration can be initiated. Access points in the first access network may be grouped into one or more pre-registration zones. If the access terminal moves from a first access point to a second access point, a new pre-registration is skipped if the first and second access points have the same pre-registration zone or the second access point is aware of the pre-registration zone for the first access point.

Method and apparatus for reducing successive pre-registration attempts by access terminals

Methods and apparatuses for wireless communications are disclosed. For example, one method includes detecting a procedure and determining the procedure is a qualifying procedure. The method further includes detecting one or more handover events indicative of handover procedures, where the handover procedures interfere with the execution of the qualifying procedure. The method also includes comparing a radio frequency condition of the communication between a user equipment and a source access point with a threshold value based on the radio frequency condition and delaying handover procedures for a predefined time based on the comparison, wherein the delaying of the handover procedures occurs when the detected procedure is the qualifying procedure and when the radio frequency condition satisfies a threshold that is based on the threshold value.

Methods and apparatus for reducing handover signaling during wireless communication procedures

Certain aspects of the present disclosure propose techniques for independently signaling features supported by a user equipment (UE) in different duplexing modes. The UE may be capable of communicating in frequency division duplexing (FDD) and time division duplexing (TDD) modes. The UE may obtain a FDD-specific feature group indicators (FGIs) set and a TDD-specific FGIs set, and signal at least one of the FDD-specific FGIs set or TDD-specific FGIs set. In addition, the UE may take one or more actions to reduce the likelihood of transitioning to a mode of operation that is different from its current mode of operation.

Methods and apparatus for employing different capabilities for different duplexing modes

Certain aspects of the present disclosure propose a method for domain selection in a multimode UE. The domain selection method may be used to select domains for short message service (SMS) and/or voice service when the UE has camped on a packet switched (PS) network such as LTE. The proposed domain selection method may take into account UE capabilities, home operator preferences, visited operator preferences, visited network capabilities, and user settings.

System, apparatus, and method to enable domain selection in a multimode device

Methods and apparatus are provided for device configuration (e.g., feature segment loading and system selection). Certain aspects of the present disclosure generally relate to operating a user equipment (UE) in a first radio access network (RAN) with a first set of modem features that supports the first RAN, detecting a second RAN not supported by the first set of modem features, and rebooting the modem software to load a second set of modem features that supports the detected RAN. For certain aspects, the first RAN may be a Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network and the second RAN may be a Wideband-Code Division Multiple Access (W-CDMA) network or long term evolution network. This allows features to be loaded into memory (e.g., only) when they are required to support a detected RAN, rather than loading an entire image, thereby conserving DRAM and increasing efficiency.

Methods and apparatus for updating a device configuration

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San Diego, CA, United States of America

Shyamal Ramachandran