Qualcomm Incorporated

Other

Srinivas Yerramalli

Xiaoxia Zhang

Tao Luo

Jing X Sun

Tamer Adel Kadous

Peter S Gaal

Aleksandar Damnjanovic

Wanshi Chen

Arumugam Chendamarai Kannan

Yongbin Wei

Chih-Hao Liu

Hao Xu

Durga Prasad Malladi

Rajat Prakash

Vinay Chande

Marwen Zorgui

Alexandros Manolakos

Juan Montojo

Naga Bhushan

Taesang Yoo

Wooseok Nam

Zhifei Fan

Sungwoo Park

Seyed Ali Akbar Fakoorian

Mohammed Ali Mohammed Hirzallah

Mukesh Kumar

Junyi Li

Tingfang Ji

Rahul Malik

Sony Akkarakaran

Alberto Rico Alvarino

Mostafa Khoshnevisan

Kaushik Chakraborty

Lorenzo Ferrari

Ahmed Abdelaziz Ibrahim Abdelaziz Zewail

Andrei Dragos Radulescu

Kapil Bhattad

Shimman Arvind Patel

Kiran Kumar Somasundaram

Ozcan Ozturk

Qingjiang Tian

Akula Aneesh Reddy

Makesh Pravin John Wilson

Chirag Dipak Patel

Yih-Hao Lin

Ravi Teja Sukhavasi

Seyedkianoush Hosseini

Marco Papaleo

Vasanthan Raghavan

Piyush Gupta

Hamed Pezeshki

Xiaojie Wang

Olufunmilola Omolade Awoniyi-Oteri

Giovanni Chisci

Onkar Jayant Dabeer

Sven Fischer

Yan Zhou

Jing Lei

Aamod Dinkar Khandekar

Aziz Gholmieh

Ahmed Kamel Sadek

Chirag Sureshbhai Patel

Stephen William Edge

Ahmed Attia Abotabl

Siddhartha Mallik

Farhad Meshkati

Vinay Joseph

Vikas Jain

Linhai He

Shailesh Patil

Maarten Menzo Wentink

Sumeeth Nagaraja

Madhavan Srinivasan Vajapeyam

Anastasios Stamoulis

Yucheng Dai

Kapil Gulati

Alexei Yurievitch Gorokhov

Sudhir Kumar Baghel

Simone Merlin

Mahmoud Taherzadeh Boroujeni

Ahmed Elshafie

Qiang Wu

Brian Clarke Banister

Guttorm Ringstad Opshaug

Prashanth Haridas Hande

Jingchao Bao

Sai Pradeep Venkatraman

Akash Kumar

Danlu Zhang

Hari Sankar

Amir Aminzadeh Gohari

Valentin Alexandru Gheorghiu

Libin Jiang

Michael Lee McCloud

Ruiming Zheng

Supratik Bhattacharjee

Amit Jain

Chang-Sik Choi

Disclosed are techniques for wireless communication. In an aspect, a positioning entity receives a beam report from a network entity, the beam report including beam shape assistance information for one or more downlink transmit beams of a base station, the one or more downlink transmit beams corresponding to positioning reference signal resources to be measured by a user equipment (UE), the beam shape assistance information indicating at least one basis function representing a beam shape of each of the one or more downlink transmit beams or a quantization of a reduced portion of each of the one or more downlink transmit beams, and determines a location of the UE based at least on signal strength measurements of the positioning reference signal resources and the beam shape assistance information.

Basis function based beam shape assistance for downlink angle of departure positioning

A method of sending measurement information from a user equipment includes: measuring a reference signal: producing a measurement report payload based on measurement of the reference signal: encoding the measurement report pay load in accordance with ASN.1 (Abstract Syntax Notation One) encoding, and in accordance with a lower-layer protocol to produce an encoded payload, the lower-layer protocol being either a physical-layer protocol or a MAC-layer (Medium Access Control layer) protocol; and sending a lower-layer message based on the encoded pay load from the user equipment to a network entity.

Low-layer positioning measurement reporting

A signal time delay estimation method includes: obtaining, at an apparatus, a plurality of RFFPs (radio frequency fingerprints) each based on a plurality of signal measurements of respective signals transferred between respective ones of a plurality of wireless signal transfer devices; obtaining, at the apparatus, a plurality of locations corresponding to the plurality of wireless signal transfer devices; and implementing, at the apparatus, a machine-learning algorithm to provide at least one first indication of at least one first signal time delay to convert between a first wireless signal at a target device, of the plurality of wireless signal transfer devices, and a first baseband signal at the target device based on the plurality of RFFPs and the plurality of locations.

Timing error estimation

Systems, methods, and devices for wireless communication that support backscatter-based positioning. A method of wireless communication includes receiving a tag device indicator that indicates a tag capability of a tag device. The method also includes generating a tag configuration associated with transmission of a backscatter signal based on a positioning reference signal (PRS). The tag configuration indicates a frequency shifting parameter based on a frequency shifting capability of a tag device, a phase scrambling parameter based on a phase scrambling capability of the tag device, or a combination thereof. The method further includes transmitting the tag configuration.

Backscatter-based positioning

Techniques described herein provide for a mobile device communicating a timing quality metric related to an uplink (UL) signal for UL and/or downlink-uplink (DL-UL) positioning techniques. The timing quality metric can be indicative of an accuracy of the transmission timing of one or more reference signals (e.g., in relation to a downlink (DL) signal or other UL reference signal) and may be communicated using an indexed and/or enumerated value. This information can be included as an information element (IE) in a report provided by the mobile device to a receiving network entity or location server.

Reporting UE UL TX timing quality for UL or DL-UL based position methods for NR positioning

In an aspect, a UE detects a collision between at least one symbol among first and second sets of symbols of respective SRS-M and SRS-P configurations. The UE selects one of the SRS-M configuration and the SRS-P configuration for transmission on the at least one detected collision symbol, and transmits an SRS transmission in accordance with the selected SRS configuration on the at least one detected collision symbol. In another aspect, a BS transmits configuration of a SRS-M-P, and receives an SRS-M-P transmission from a UE in accordance with the SRS-M-P configuration on at least one symbol.

Sounding reference signal collision resolution

Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) transmits one or more provide capabilities messages to a location server, the one or more provide capabilities messages indicating at least a first set of capabilities of the UE to engage in a downlink radio frequency fingerprint (DL-RFFP) positioning procedure, and receives one or more positioning assistance data messages for the DL-RFFP positioning procedure from the location server, the one or more positioning assistance data messages based at least on the first set of capabilities.

User equipment (UE)-based radio frequency fingerprint (RFFP) positioning with downlink positioning reference signals

Disclosed are Techniques for wireless communication are provided. In an aspect, a radio frequency identification (RFID) device receives, from an RFID tag, a first backscattered signal, receives, from the RFID tag, a second backscattered signal having a known time offset relative to the first backscattered signal, and performs interference cancellation on the first backscattered signal based on the second backscattered signal.

Interference cancellation for backscattered reference signals

Techniques are described for wireless communication. An orthogonal frequency-division multiple access (OFDMA) configuration of an uplink channel is identified for communications in an unlicensed radio frequency spectrum band. An OFDMA waveform is generated based on the identified OFDMA configuration. The OFDMA waveform is communicated in a signal in the unlicensed radio frequency spectrum band. A virtual cell identifier of a first base station may be associated with transmissions between the first base station and a first user equipment (UE). A set of common resource blocks may be identified for transmission of a demodulation reference signal (DM-RS) between the first base station and the first UE. A configuration of an uplink channel may be dynamically selected for uplink communications in an unlicensed radio frequency spectrum band. A waveform may be generated based on the selected configuration. The waveform may be communicated in a signal in the unlicensed radio frequency spectrum band.

Techniques for configuring uplink channels in unlicensed radio frequency spectrum bands

This disclosure provides systems, methods, and devices for wireless communication that support fifth generation (5G) new radio (NR) radio frequency (RF) sensing with polarization configuration. In a first aspect, a method of wireless communication includes receiving at a network node participating in 5G NR RF sensing a first polarization indicator and a second polarization indicator from a network entity. The first polarization indicator is associated with transmission of a first reference sensing signal and the second polarization indicator is associated with reception of a second reference sensing signal. The network node performs sensing measurements using the first polarization indicator and the second polarization indicator and transmits a sensing measurement report including the sensing measurements associated with the second reference sensing signal to the network entity. Other aspects and features are also claimed and described.

Fifth generation new radio radio frequency sensing with polarization configuration

Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) receives a set of antenna parameters for a plurality of antenna ports of a transmission-reception point (TRP), obtains positioning measurements of a plurality of positioning reference signal (PRS) resources transmitted on the plurality of antenna ports, reconstructs an underlying physical channel between the TRP and the UE based on the positioning measurements of the plurality of PRS resources, and determines a downlink angle of arrival (DL-AoD) measurement from the TRP to the UE based on the reconstructed underlying physical channel.

Multi-port positioning reference signal (PRS) for downlink angle-of-departure (AOD) estimation

In an aspect, a network component (e.g., BS, LMF, etc.) determines a configuration of a first search window associated with a downlink positioning reference signal (DL-PRS) resource from a transmission reception point (TRP) to a user equipment (UE) and a second search window associated with the DL-PRS resource from the TRP to the UE. The network component transmits the configuration to the UE. The UE performs one or more positioning measurements of the DL-PRS resources based on the first and second search windows.

Multiple search windows associated with measurement of a downlink positioning reference signal

A parameter server located at a base station may coordinate federated learning among multiple user equipment (UEs) using over-the-air (OTA) aggregation with power control to mitigate aggregation distortion due to amplitude misalignment. The parameter server may select a first group of UEs for a first OTA aggregation session of a federated learning round based on a common received power property of each UE in the first group of UEs. The parameter server may transmit a global model to the first group of UEs. Each UE in the first group may train the global model based on a local dataset and transmit values associated with the trained local model. The parameter server may receive, on resource elements for the first group of UEs, a first aggregate amplitude modulated analog signal representing a combined response from the first group of UEs.

Power control in over the air aggregation for federated learning

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

Disclosed are techniques for UE-based wireless positioning. In an aspect, a user equipment (UE) may acquire, from a first set of transmission/reception entities (TREs), a first set of measurements of signals. The UE may select, from the first set of TREs, a second set of TREs, based on criteria for selecting and/or prioritizing TREs for radio frequency fingerprint (RFFP)-based positioning. The UE may acquire, from the second set of TREs, a second set of measurements, the second set of measurements comprising RFFP measurements. The UE may estimate a position of the UE based on the second set of measurements. In an aspect, the UE may input the second set of measurements into a trained machine learning (ML) model that outputs an estimated position of the UE. In an aspect, the UE receives the selection/prioritization criteria and/or the trained ML model from a network node.

Signaling of measurement prioritization criteria in user equipment based radio frequency fingerprinting positioning

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San Diego, CA, United States of America

Srinivas Yerramalli