Qualcomm Incorporated

Other

Q1ualcomm Incorporated

Aamod Dinkar Khandekar

Alexei Yurievitch Gorokhov

Ravi Palanki

Naga Bhushan

Avneesh Agrawal

Wanshi Chen

Tingfang Ji

Peter S Gaal

Rajat Prakash

Juan Montojo

Mohammad Jaber Borran

Seyedkianoush Hosseini

Edward Harrison Teague

Peter Pui Lok Ang

Ashwin Sampath

Tamer Adel Kadous

Dhananjay Ashok Gore

Fatih Ulupinar

Arak Sutivong

Gavin Bernard Horn

Parag Arun Agashe

Jelena Damnjanovic

Seyed Ali Akbar Fakoorian

Huilin Xu

Sandip Sarkar

Raja Sekhar Bachu

Jing X Sun

Kapil Bhattad

Tao Luo

Wooseok Nam

Wei Jennifer Yang

Raghu Narayan Challa

Brian Clarke Banister

Amir Farajidana

Rajiv Vijayan

Alexandros Manolakos

Thomas J Richardson

Ashok Mantravadi

Sony Akkarakaran

Joseph Binamira Soriaga

Srinivas Yerramalli

Hung Dinh Ly

Muhammad Sayed Khairy Abdelghaffar

Hemanth Sampath

Shimman Arvind Patel

Arvind Vardarajan Santhanam

Fuyun Ling

Hao Xu

Alberto Rico Alvarino

Gabi Sarkis

Arumugam Chendamarai Kannan

Rajarshi Gupta

Gordon Kent Walker

Michael Mao Wang

Arnab Das

Ruhua He

Junyi Li

Yan Zhou

Aleksandar Damnjanovic

Yi Huang

Jing Jiang

Shay Landis

Assaf Touboul

Nathan Edward Tenny

Kuo-Chun Lee

Peerapol Tinnakornsrisuphap

Amir Aminzadeh Gohari

Qingxin Chen

Murali Chari

Supratik Bhattacharjee

Dung Ngoc Doan

Kapil Gulati

Krishna Kiran Mukkavilli

Sudhir Kumar Baghel

Xiao Feng Wang

Santosh Paul Abraham

Shailesh Patil

Heechoon Lee

Shuanshuan Wu

Tien Viet Nguyen

Peter J Black

Xipeng Zhu

Ayan Sengupta

David Jonathan Julian

Siddhartha Mallik

Reza Shahidi

Jilei Hou

Thomas Stockhammer

Arjun Bharadwaj

Shailesh Maheshwari

Andrei Dragos Radulescu

Raghuraman Krishnamoorthi

Parvathanathan Subrahmanya

Wei Yang

Xiliang Luo

Sundeep Rangan

Chirag Sureshbhai Patel

Pouriya Sadeghi

Vinay Joseph

Methods, systems, and devices for wireless communication are described that provide for reduced timing between certain downlink communications and responsive uplink communications relative to certain legacy systems (e.g., legacy LTE systems). A user equipment (UE) or base station may be capable of operating using two or more timing configurations that each include an associated time period between receipt of a downlink communication (e.g., a grant of uplink resources or shared channel data) and a responsive uplink communication (e.g., an uplink transmission using the granted uplink resources or feedback of successful reception of the shared channel data). In cases where a UE or base station are capable of two or more timing configurations, a timing configuration for a transmission may be determined and the responsive uplink communication transmitted according to the determined timing configuration.

Latency reduction techniques in wireless communications

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for a sounding reference signal (SRS) resource set that includes a first SRS resource associated with a first SRS resource indicator (SRI) and a first antenna of the UE, and a second SRS resource associated with a second SRI and a second antenna of the UE. The UE may receive first downlink control information (DCI) that schedules a first uplink communication on a first uplink channel, wherein the first DCI indicates the first SRI. The UE may transmit, using the first antenna, the first uplink communication using a transmit power that is based at least in part on a weighted average of a first pathloss associated with the first antenna and a second pathloss associated with the second antenna. Numerous other aspects are described.

Power control for sounding reference signal resource indicator based antenna selection

The techniques described herein may provide for sub-slot based physical uplink shared channel (PUSCH) repetition (i.e., back-to-back PUSCH repetition within a slot) according to user equipment (UE) capability. A UE may employ uplink data repetition capability reporting for base station scheduling of uplink data repetition and base station management of the number of transport blocks (TBs) that a UE supports (e.g., processes and transmits for uplink) on a per-slot basis. According to the techniques described herein, a UE may indicate whether it supports mini-slot repetition (e.g., for ultra-reliable low-latency communication (URLLC), enhanced mobile broadband (eMBB), or both) via an uplink data repetition capability report. The uplink data repetition capability report may further indicate a maximum number of supported repetitions per TB, a number of supported TBs per slot, etc., such that a base station may configure or schedule PUSCH repetition based on the UE's reported capability.

Capability signaling for physical uplink shared channel repetition

Apparatus, methods, and computer-readable media for providing improved power efficiency during DRX wake-up are disclosed. An example method of wireless communication at a UE includes receiving a WUS from a base station while performing a DRX cycle, the WUS indicating data for transmission to the UE. The example method also includes at least one receiving a downlink reference signal or transmitting an uplink reference signal based on the WUS and prior to reception of the data, the uplink reference signal transmitted or the downlink reference signal received during an on-duration of the DRX cycle and in response to receiving the WUS. The example method also includes sending a CSI report to the base station based on the WUS and prior to the receiving of the data. The example method also includes receiving the data following the respective receiving or transmitting of the downlink reference signal or uplink reference signal.

Methods and apparatus to facilitate wake-up signaling during discontinuous reception

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

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may determining a physical uplink control channel (PUCCH) transmission characteristic, wherein the PUCCH transmission characteristic is a quantity of PUCCH transmissions in a sub-slot or a format of a set of PUCCH transmissions in the sub-slot, and wherein the wireless communication device supports at least one sub-slot hybrid automatic repeat request (HARQ) acknowledgement (ACK) codebook; and reporting information identifying the PUCCH characteristic for a plurality of types of symbol codebooks. Numerous other aspects are provided.

Physical uplink control channel transmission for low latency communication deployments

A base station may perform interleaving of parts of a plurality of transport blocks for a broadcast or multicast transmission across a plurality of time intervals. A size of a transport block of the plurality of transport blocks may be scaled by a scaling factor. The base station may transmit the interleaved parts in the plurality of time intervals.

Interleaving transport blocks in broadcast transmissions

Apparatus, methods, and computer program products for serving cell measurement based on CSI-RS RRM are provided. An example apparatus may transmit, to a base station, an indication indicating support for reporting one or more serving cell channel state information reference signal (CSI-RS) radio resource management (RRM) measurements independent of non-serving cell CSI-RS RRM measurements. The example apparatus may receive, from the base station, a configuration of layer 3 measurement resources. The example apparatus may perform, based on the configuration of the layer 3 measurement resources, the one or more serving cell CSI-RS RRM measurements. The example apparatus may transmit, to the base station, the one or more serving cell CSI-RS RRM measurements for a serving cell.

UE capability for performing serving cell based CSI-RS RRM measurements

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

Methods, systems, and devices for wireless communications are described. In one example, a method for wireless communications at a user equipment (UE) includes determining one or more performance metrics related to communications over a wireless channel and comparing the one or more performance metrics with a performance level for the communications over the wireless channel. The method may include selecting a power mode for the UE based at least in part on the comparing and determining an operating state of a subset of a plurality of radio frequency front end elements of at least one active radio frequency chain of the UE based at least in part on the power mode and a priority of the one or more performance metrics. The method may also include adjusting the subset of the plurality of radio frequency front end elements based at least in part on the operating state.

Techniques for adaptive power mode control

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, for a master cell group and a secondary cell group used for a dual connectivity mode of the UE, information indicating physical downlink control channel (PDCCH) monitoring capability values for one or more of span-based monitoring or a combination of slot-based monitoring and span-based monitoring. The UE may receive, from the base station, PDCCH monitoring configuration values for the MCG and the SCG based at least in part on the PDCCH monitoring capability values. Numerous other aspects are provided.

Physical downlink control channel monitoring capability reporting and configuration for dual connectivity

Methods, systems, and devices for wireless communications are described that provide for antenna selection at a user equipment (UE). The UE may have a set of available antennas for uplink and downlink communications, and may select a first subset of antennas for uplink communications and a second subset of antennas for downlink communications. The first subset of antennas may be based on one or more uplink metrics, and the second subset of antennas may be based on the first subset of antennas and one or more downlink channel metrics, traffic amounts, or any combinations thereof.

Antenna selection techniques for uplink and downlink wireless communications

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a configuration of a minimum slot offset based at least in part on a determination of a minimum wake-up signal (WUS) gap capability associated with the UE, wherein the minimum WUS gap capability corresponds to a capability of the UE to support a WUS gap having a minimum gap size, wherein the minimum slot offset indicates a minimum time period between a physical downlink control channel (PDCCH) occasion and a physical downlink shared channel (PDSCH) occasion scheduled by the PDCCH; and monitor the PDCCH occasion for a downlink grant based at least in part on the configuration. Numerous other aspects are provided.

Wake-up signal and bandwidth part management

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit an indication that the UE is capable of supporting one or more channels of a first priority and one or more channels of a second priority, where the first priority is higher than the second. The UE may receive signaling indicating a search space set in a control-resource set (CORESET) that corresponds to grant candidates for scheduling the one or more channels of the first priority. The UE may determine a second search space set in the CORESET that corresponds to grant candidates for scheduling the one or more channels of the second priority. The UE may decode, within a search space of the first search space set, a grant for scheduling the one or more channels of the first priority.

Priority-based search space categorization

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may configure a bandwidth part (BWP) switching configuration of a user equipment in connection with a dual active protocol stack (DAPS) handover based at least in part on a BWP switching rule; and perform the DAPS handover. Numerous other aspects are provided.

Bandwidth part switching for dual active protocol stack handover

Growing community of inventors

San Diego, CA, United States of America

Aamod Dinkar Khandekar