Qualcomm Incorporated

Gautham Hariharan

Supratik Bhattacharjee

Arvind Vardarajan Santhanam

Pouriya Sadeghi

Sanaz Barghi

Navin Dunichand Anwani

Arnaud Meylan

Reza Shahidi

Brian Clarke Banister

Weiliang Zeng

Ertugrul Necdet Ciftcioglu

Alexei Yurievitch Gorokhov

Peter Pui Lok Ang

Aamod Dinkar Khandekar

Raghu Narayan Challa

Shailesh Maheshwari

Min Wang

Nan Zhang

Chun-Hao Hsu

Timothy Paul Pals

Jittra Jootar

Chinmay Shankar Vaze

Udayan Murli Bhawnani

Zhibin Dang

Omesh Kumar Handa

Rebecca Wen-Ling Yuan

Farrukh Rashid

Ambarish Tripathi

Alexandre Pierrot

Sumanth Kumar Kota

Ahmed Omar Desouky Ali

Arash Ebadi Shahrivar

Sibasish Das

Ashutosh Vinod Agrawal

Chetan Jagdeesh Bharadwaj

Yubing Jian

Ali Koochakzadeh

Sivaguru Narasareddy

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 (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

Methods, systems, and devices for wireless communications are described that provide for receive chain selection at a user equipment (UE) with efficient switching between a reduced number of receive chains and an increased number of receive chains for downlink communications based on conditions at the UE. A UE may adaptively adjust the number of active receive chains based on downlink grant activity, channel conditions, network parameters, or any combinations thereof. An estimator block at the UE may determine to adjust the number of receive chains based on a number of downlink grants within one or more time periods. In some cases, grants for an amount of data that exceeds a threshold may be qualified in order to be counted at the estimation block. Further, a transient state may be provided where the UE may maintain a higher number of active receive chains until UE feedback is provided.

Receive diversity techniques in wireless communications

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

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)

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Cupertino, CA, United States of America

Gautham Hariharan