Qualcomm Incorporated

Telefonaktiebolaget Lm Ericsson (publ)

Other

Kuo-Chun Lee

Tom Chin

Guangming Shi

Arvind Vardarajan Santhanam

Sivaramakrishna Veerepalli

Daniel Amerga

Shailesh Maheshwari

Steven D Cheng

Srinivasan Balasubramanian

Reza Shahidi

Jun Wang

Ralph Akram Gholmieh

Xiaoxia Zhang

Xipeng Zhu

Nagaraju Naik

Leena Zacharias

Gordon Kent Walker

Vishal Dalmiya

Satashu Goel

Masato Kitazoe

Brian Clarke Banister

Qingxin Chen

George Cherian

Arnaud Meylan

Wei Zhang

Aziz Gholmieh

Min Wang

Liangchi Hsu

Suli Zhao

Peter Pui Lok Ang

Ajith Tom Payyappilly

Parthasarathy Krishnamoorthy

Naga Chandan Babu Gudivada

Vanitha Aravamudhan Kumar

Andrea Garavaglia

Gavin Bernard Horn

Shyamal Ramachandran

Todd Robert Sutton

Yu Albert Wang

Bhupesh Manoharlal Umatt

Thadi Manjunath Nagaraj

Ozcan Ozturk

Haris Zisimopoulos

Bibhu P Mohanty

Thomas Klingenbrunn

Ruiming Zheng

Osama Lotfallah

Shanshan Wang

Peter S Gaal

Muhammad Nazmul Islam

Aamod Dinkar Khandekar

Raghu Narayan Challa

Thomas Stockhammer

Gerardo Giaretta

Charles Nung Lo

Thawatt Gopal

Gadi Karmi

Carlos Marcelo Dias Pazos

Serguei A Glazko

Huichun Liu

Cheol Hee Park

Prashanth Hosabettu Mohan

Yongsheng Shi

Chetan Chakravarthy

Anand Rajurkar

Chih-Ping Hsu

Hao Xu

Alberto Rico Alvarino

Alexei Yurievitch Gorokhov

Stephen William Edge

Linhai He

Umesh Phuyal

Stefano M Faccin

Jay Kumar Sundararajan

Ayman Fawzy Naguib

Sitaramanjaneyulu Kanamarlapudi

Paul E Bender

Prasad Reddy Kadiri

Mungal Singh Dhanda

Zhen Zhang

Danlu Zhang

Karthika Paladugu

Michael G Luby

Adrian Edward Escott

Lenaig Genevieve Chaponniere

Kirk Allan Burroughs

Ruhua He

Ying Wang

Arungundram C Mahendran

Uppinder Singh Babbar

Juan Zhang

Arvind Swaminathan

Franklin Peter Antonio

Arash Mirbagheri

Ie-Hong Lin

Yan Wang

Yu-Ting Yu

Vikram Singh

Yinian Mao

Oronzo Flore

Methods (), systems () and devices () for wireless communications are presented. A method () may include the following operations. A UE determines to perform a handover from a first source device in a first network to a first target device in the first network and from a second source device in a second network to a second target device in the second network (). The UE identifies a time interval for performing a first random access procedure with the first target device in the first network (). The UE initiates a first random access procedure with the first target device (). The UE performs a second random access procedure successfully with the second target device in the second network during the time interval (). The UE transmits or receives from the target device in the second network before the UE finishes performing the first random access procedure with the first target device in the first network ().

Parallel handover and failure handling

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, control signaling for communications in a wireless communications system. The control signaling may indicate a first duration for an inactivity timer. The UE may initiate the inactivity timer and a second timer based on identifying a period of inactivity. The second timer may have a second duration that is shorter than the first duration for the inactivity timer. In some examples, the second duration may be based on one or more parameters, such as a display status, a battery status, a scaling factor, the first duration, an application state, or any combination thereof. The UE may release a connection for the communications in the wireless communications system based on an expiration of the second timer, an expiration of the inactivity timer, or a combination thereof.

Enhanced connection release techniques for wireless communications systems

Methods, systems, and devices for wireless communications are described. Generally, a base station may configure a user equipment (UE) with a time to trigger (TTT) and a signal quality threshold. The UE may determine whether one or more conditions are satisfied, and if so, transmit an early measurement report or ignore a conflicting procedure that renders the measurements unavailable. In some examples, a UE may receive an indication of a minimum TTT in a configuration message with the TTT and the signal quality threshold. The UE may indicate an updated timing, to a base station, based on the minimum TTT. In some examples, the base station may determine that a UE is a multi-subscriber identification module (MSIM) UE, and may configure the duration of the TTT accordingly.

Measurement reporting timing adjustments

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit, to a base station, a UE capability message associated with a number of downlink multiple-input and multiple-output (MIMO) layers supported at the UE. The UE may receive a configuration for a set of downlink MIMO layers including a first subset of downlink MIMO layers configured for a first cell and a second subset of downlink MIMO layers configured for a second cell. The UE may allocate a first set of resources to the first cell or the second cell, or both, based on the first and the second subset of downlink MIMO layers. The UE may determine a second set of resources are unallocated to the set of downlink MIMO layers and allocate the second set of resources to the first cell or the second cell, or both.

Techniques to allocate receive resources

Aspects of the disclosure relate to mechanisms for enhancement in UE cell selection to prioritize cells supporting 5G New Radio (NR) in standalone mode (SA) and in non-standalone (NSA) mode. In some examples, a UE may identify a plurality of cells within an area including a location of the UE. Each cell supports at least one radio access technology (RAT) and at least one frequency. The UE may determine a selection order of the plurality of cells based on the supported RATs and frequency bands to prioritize cells supporting the latest RAT (e.g., 5G NR) and select a serving cell based on the selection order.

UE enhancement prioritizing 5G NR cell selection

Aspects presented herein may improve a UE's performance by optimizing the CDRX toggling at the UE. In one aspect, a UE transmits, to a base station, a first UE assistance information request, where the first UE assistance information request include s at least one of an updated CDRX cycle or an updated inactivity timer period, and the updated CDRX cycle is different from an initial CDRX cycle and/or the updated inactivity timer period is different from an initial inactivity timer period. The UE adjusts the initial CDRX cycle to the updated CDRX cycle based on the first UE assistance information request. The UE transmits, to the base station after the initial CDRX cycle is adjusted, a second UE assistance information request, where the second UE assistance information request includes at least one of the initial CDRX cycle or the initial inactivity timer period.

User equipment optimization for connected mode discontinuous reception toggling

Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit assistance information to a base station to request an update or a modification to one or more communication parameters configured at the UE. Such communication parameters may include a quantity of uplink multiple-input multiple-output (MIMO) layers, a quantity of downlink MIMO layers, a minimum scheduling offset, a maximum quantity of component carriers, or a maximum aggregated bandwidth for a secondary cell group (SCG). In some implementations, the UE may transmit the assistance information requesting the update or modification to one or more of such communication parameters based on detecting that the UE satisfies one or more triggering conditions or thresholds.

Techniques for providing assistance information for reduced MIMO layers

Certain aspects of the present disclosure provide techniques for releasing an RRC connection by a user equipment (UE). A method that may be performed by the UE includes establishing an RRC connection, determining a time duration for a release timer, resetting the release timer, monitoring the RRC connection, and releasing the RRC connection.

Radio resource control (RRC) connection release timer

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may initiate a broadcast or multicast (broadcast/multicast) application associated with a first radio access technology (RAT) while the UE is in a standalone mode for a second RAT; switch from the second RAT to the first RAT based at least in part on initiating the broadcast/multicast application; and switch from the first RAT to the second RAT based at least in part on failing to detect a communication associated with the broadcast/multicast application using the first RAT. Numerous other aspects are provided.

Broadcast or multicast support for standalone mode

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may measure a parameter associated with a secondary cell group. The UE may perform an optimization response action for a dual connectivity mode of a first frequency parameter or a second frequency parameter when the parameter satisfies a threshold, wherein the optimization response action is associated with whether the secondary cell group is operating with the first frequency parameter or the second frequency parameter. Numerous other aspects are described.

Techniques for dual connectivity mode optimization

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may establish, by a first subscription of the UE, a connection to a first network entity using two transmit (Tx) chains of the UE. The UE may receive, by a second subscription of the UE, a paging message from a second network entity. The UE may receive, by the first subscription from the second subscription, a request for the first subscription to enter a mode that supports one Tx chain. The UE, by the first subscription, may reduce the two Tx chains to the one Tx chain for the first subscription. The UE may perform, by the second subscription to the second network entity, the connection setup based at least in part on the first subscription reducing the two Tx chains to the one Tx chain. Numerous other aspects are described.

Performing a connection setup based at least in part on a paging message

Aspects are provided which allow a UE to disable measurements of reference signals from 5G base stations which are inapplicable to EN-DC. The UE may receive a reference signal from a base station. The UE may identify a frequency range. The UE may determine whether to measure the reference signal based on whether the reference signal is within the identified frequency range. The UE may refrain from measuring the reference signal in response to the determination. The UE may also refrain from measuring the reference signal in response to a SIB received at the UE not including a ULI, or in response to a frequency associated with the reference signal not being in a list of supported bands for EN-DC. As a result, inter-RAT handovers from LTE base stations to 5G base stations are prevented, UE power consumption is thereby saved, and support for EN-DC is maintained.

Measurement disabling in frequency ranges

Certain aspects of the present disclosure provide techniques for packet buffering. A method that may be performed by a receiving node includes dynamically determining one or more time durations to buffer packets. The one or more time durations can be different than a time duration of a configured timer for buffering the packets. The receiving node may input one or more parameters to a machine learning algorithm and obtain, as output of the machine learning algorithm based on the input one or more parameters, one or more time durations to buffer packets. The receiving node buffers packets for the determined one or more time durations. The receiving node may use machine learning to dynamically determine the one or more time durations to buffer packet. The buffering may be at a radio link control (RLC) reassembling buffer and/or a packet data convergence protocol (PDCP) buffer.

Dynamic packet buffering duration

Methods, systems, and devices for wireless communications are described. A system may support techniques for triggering user equipment (UE) assistance information (UAI) based on mobility, wake up signal (WUS) configuration, or both. In some cases, a UE may communicate with a network node (e.g., a base station) on a first channel according to a discontinuous reception (DRX) configuration. The UE may determine that a speed of the UE satisfies a mobility threshold and may transmit UAI requesting one or more updated DRX configuration parameters based on the speed of the UE satisfying the mobility threshold. Additionally or alternatively, the UE may receive signaling configuring the UE to monitor for WUSs and may transmit UAI requesting one or more updated DRX configuration parameters based on the WUS configuration. The UE may receive control signaling configuring the DRX configuration with the one or more requested parameters in response to the UAI.

Triggering user equipment (UE) assistance information based on mobility and wake up signal (WUS) configuration

Aspects described herein relate to communicating with multiple cells based on two separate subscriptions stored at the UE in a dual subscription dual standby (DSDS) mode, switching to communicate with the multiple cells in a dual subscription dual active (DSDA) mode, transmitting, to at least one of the multiple cells and based on a number of component carriers allowed for a subscription being exceeded by switching to communicate in the DSDA mode, assistance information to indicate a threshold amount of component carriers for the UE, and transmitting, to at least one of the multiple cells and based on the number of component carriers allowed for the subscription being exceeded by switching to communicate in the DSDA mode, a channel quality indicator (CQI) value for one or more cells of the multiple cells to request deactivation of one or more component carriers with, or release of, the one or more cells.

Techniques for modifying component carrier or layer configuration in multi-subscription wireless communications

Growing community of inventors

San Diego, CA, United States of America

Kuo-Chun Lee