Qualcomm Incorporated

Supratik Bhattacharjee

Alberto Rico Alvarino

Brian Clarke Banister

Shivratna Giri Srinivasan

Umesh Phuyal

Peter S Gaal

Gautham Hariharan

Prasad Reddy Kadiri

Wanshi Chen

Le Liu

Raghu Narayan Challa

Masato Kitazoe

Amir Farajidana

Pouriya Sadeghi

Messay Amerga

Hongbo Yan

Francis M Ngai

Sanaz Barghi

Tae Min Kim

Seyedkianoush Hosseini

Gavin Bernard Horn

Arnaud Meylan

Arvind Vardarajan Santhanam

Reza Shahidi

Prashanth Haridas Hande

Keiichi Kubota

Karthika Paladugu

Michael Lee McCloud

Yongle Wu

Qiang Shen

Timothy Paul Pals

Weiliang Zeng

Rebecca Wen-Ling Yuan

Alexandros Manolakos

Alexei Yurievitch Gorokhov

Aamod Dinkar Khandekar

Nathan Edward Tenny

Zhu Ji

Ashok Mantravadi

Amer Catovic

Pengkai Zhao

Francis Ming-Meng Ngai

Jae Ho Ryu

Wenshu Zhang

Thomas Wilborn

Prashant Udupa Sripathi

Prashanth Akula

Chengjin Zhang

Brian George

Udayan Murli Bhawnani

John Forrester

Vivek Venkatesh Ramachandran

Ertugrul Necdet Ciftcioglu

Tao Luo

Xiaoxia Zhang

Yongbin Wei

Durga Prasad Malladi

Srinivas Yerramalli

Taesang Yoo

Yisheng Xue

Srinivasan Balasubramanian

Sven Fischer

Aziz Gholmieh

Min Wang

Amir Aminzadeh Gohari

Inyup Kang

Valentin Alexandru Gheorghiu

Thomas Klingenbrunn

Shyamal Ramachandran

Daniel Amerga

Nan Zhang

Thawatt Gopal

Bhupesh Manoharlal Umatt

Udara Fernando

Helena Deirdre O'Shea

Steven C Ciccarelli

Parisa Cheraghi

Ravi Teja Sukhavasi

Navid Ehsan

Gene Fong

Sathish Krishnamoorthy

Jittra Jootar

Krishna Rao Mandadapu

Xiaoming Zhu

Carl Hardin

Can Zhao

Chinmay Shankar Vaze

Joseph C Chan

Achaleshwar Sahai

Shengshan Cui

Samson Jim

Omesh Kumar Handa

Ramesh Chandra Chirala

Zhibin Dang

Rajiv R Nambiar

Farrukh Rashid

Mustafa Emin Sahin

Alexandre Pierrot

Tim Liou

Sumanth Kumar Kota

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may obtain one or more communication parameters associated with one or more communications to be transmitted by the UE. The UE may transmit the one or more communications based at least in part on a congestion control algorithm selected from a set of candidate congestion control algorithms, the congestion control algorithm selected based at least in part on the one or more communication parameters. Numerous other aspects are described.

Congestion control algorithms

Methods, systems, and devices for wireless communication are described. In some wireless communications systems, a receiving device, such as a user equipment (UE), may reduce packet congestion associated with communications between the receiving device and a transmitting device, such as a server, via a radio access network (RAN). The receiving device may measure congestion metrics associated with receiving data packets from the transmitting device via the RAN. The congestion metrics may include RAN congestion metrics and transport or application layer congestion metrics associated with the network connection between the receiving device and the transmitting device. The receiving device may estimate packet congestion at the receiving device according to the measured congestion metrics. The receiving device may modify connection parameters of the network connection based on the estimated packet congestion. The receiving device may communicate with the transmitting device over the network connection in accordance with the modified connection parameters.

Downlink congestion control optimization

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment concurrently communicates with a source base station (BS) and a target BS on a connection with the source BS and a connection with the target BS as part of a make-before-break (MBB) handover procedure; and performs a common packet data convergence protocol (PDCP) function for the connection with the source BS and the connection with the target BS before the connection with the source BS is released as part of the MBB handover procedure. Numerous other aspects are provided.

Enhanced make-before-break handover

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify one or more symbols, associated with downlink communication of a first radio access technology (RAT), that are Impacted by antenna switching used to transmit an uplink reference signal of a second RAT. The UE may perform a mitigation action to mitigate downlink performance degradation associated with the first RAT based at least in part on identifying the one or more symbols. Numerous other aspects are described.

Coexistence of new radio sounding reference signal (NR-SRS) and long-term evolution (LTE) communications

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a signal. The UE may measure the signal to explore one or more inactive ranks or inactive precoders. The UE may transmit, based at least in part on the measuring, a report that includes channel state information for at least one of the one or more inactive ranks or inactive precoders. Numerous other aspects are described.

Exploration of inactive ranks or inactive precoders

Certain aspects of the present disclosure provide techniques for indicating capability of a user equipment (UE) to support multiple sounding reference signals (SRSs) with a single subframe, with at least one of frequency hopping, different bandwidths, or antenna switching for the multiple SRSs in the same subframe.

Support of multiple SRS in the same subframe

A method of wireless communications by a user equipment (UE) includes decoding information received from a base station via a physical downlink shared channel (PDSCH). The UE determines whether to update channel state feedback based on the decoded information. The channel state feedback is updated based on the determination to generate updated channel state feedback. The updated channel state feedback is transmitted to the base station. The UE is configured to update the channel state feedback without an additional measurement of a channel state information reference signal (CSI-RS).

Enhanced user equipment channel state feedback capability with frequent reporting

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a set of reference signals from a base station and may determine a first set of channel state parameters. The UE may determine one or more preprocessed decoder parameters based on a downlink channel decoder of the UE and may perform one or more signal processing operations to determine one or more adjustment values for the first set of channel state parameters. The UE may transmit an indication of a the one or more adjustment values to the base station. In some implementations, the UE may transmit an indication of the one or more preprocessed decoder parameters to the base station and the base station may perform the one or more signal processing operations to determine the one or more adjustment values.

Online adjustment for channel state information

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an antenna switch selection associated with a dual connectivity antenna configuration, wherein the antenna switch selection is associated with a first radio access technology (RAT) and the dual connectivity antenna configuration permits communication via the first RAT and a second RAT; determine, based at least in part on the antenna switching selection, a quantity of communication chains, associated with the first RAT, that are affected by an antenna switching process of the second RAT; and selectively permit, based at least in part on the quantity of communication chains, a reconfiguration of the dual connectivity antenna configuration according to the antenna switch selection. Numerous other aspects are provided.

Management of antenna switching according to a sounding reference symbol antenna switching configuration

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine a capability of the UE relating to a carrier configuration of the UE, wherein the carrier configuration relates to carriers of at least two different numerologies; and transmit information identifying the capability, wherein the information identifying the capability identifies a bandwidth or number of carriers that is supported for carriers of a first numerology and one or more scaling values associated with one or more numerologies other than the first numerology. A base station may receive information identifying a capability of a UE relating to a carrier configuration of the UE, wherein the carrier configuration relates to carriers of at least two different numerologies; and determine a configuration for communication with the UE based at least in part on the information identifying the capability. Numerous other aspects are provided.

Carrier capability signaling with regard to multiple carrier numerologies

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may adaptively switch between hybrid automatic repeat request (HARQ) monitoring modes to support power savings. In a first HARQ skipping mode, the UE may transmit an uplink message corresponding to a HARQ identifier and may receive a positive acknowledgment (ACK) message in a HARQ monitoring occasion associated with the HARQ identifier. Upon receiving the ACK message, the UE refrains from monitoring a subsequent HARQ monitoring occasion associated with the HARQ identifier while in the first HARQ skipping mode (e.g., an aggressive HARQ skipping mode). The UE may periodically enter a periodic evaluation mode from the first HARQ skipping mode, in which the UE monitors a subsequent HARQ monitoring occasion after receiving an ACK message to check for false ACK messages. If a false ACK message is detected, the UE enters a first HARQ skipping prohibited mode.

Techniques for controlling hybrid automatic repeat request (HARQ)

Certain aspects of the present disclosure relate to communication systems, and more particularly, to improving performance for sounding reference signal (SRS) antenna switching in carrier aggregation (CA). A method is provided, that may be performed by a user equipment (UE) for wireless communications. The method includes determining one or more band combinations that share an antenna switch and sending a list of one or more bands in the one or more band combinations to a base station (BS). The BS receives the list and schedules the UE based on the received list.

Methods and apparatus for SRS antenna switching in carrier aggregation

Certain aspects of the present disclosure provide techniques for handling collisions between PUSCH and sounding reference signal (SRS) on additional SRS symbols in an uplink subframe using carrier aggregation. The techniques provide rules that a user equipment (UE) may apply to decide if and when to drop or apply power scaling to SRS or PUSCH transmissions scheduled on overlapping time resources.

Collision of sounding reference signal (SRS) and physical uplink shared channel (PUSCH) in case of carrier aggregation

Growing community of inventors

San Diego, CA, United States of America

Supratik Bhattacharjee