公开(公告)号：US20220200682A1

公开(公告)日：2022-06-23

申请号：US17131560

申请日：2020-12-22

Applicant: QUALCOMM Incorporated

Inventor： Mohammed HIRZALLAH ,  Arumugam CHENDAMARAI KANNAN ,  Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Vasanthan RAGHAVAN ,  Tao LUO

IPC: H04B7/06 ,  H04B7/08

Abstract: The present disclosure relates to methods and devices for wireless communication of an apparatus, e.g., a UE and/or a base station. In one aspect, the apparatus may measure a plurality of beams from a base station or a UE, the plurality of beams corresponding to a plurality of subbands of a wideband channel. The apparatus may also determine whether the plurality of beams include one or more candidate beam groups for each subband of the plurality of subbands. Additionally, the apparatus may transmit, upon determining that the plurality of beams include one or more candidate beam groups for at least one subband of the plurality of subbands, an indication of the one or more candidate beam groups for the at least one subband of the plurality of subbands.

公开(公告)号：US20220078815A1

公开(公告)日：2022-03-10

申请号：US17384771

申请日：2021-07-25

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Mukesh Kumar ,  Srinivas YERRAMALLI

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/00

Abstract: A method of managing positioning reference signal transmission includes: instructing a transmission point to apply a muting pattern regarding transmission of a reference signal including first and second reference signal resources, where a first instance of the first reference signal resource includes one or more first resource elements across one or more first OFDM symbols within a slot, and a second instance of the second reference signal resource includes one or more second resource elements across one or more second OFDM symbols within the slot; and instructing the transmission point to transmit, unmuted, at least one of the one or more second resource elements, of at least one of the one or more second OFDM symbols, despite the muting pattern indicating to mute transmission of the at least one of the one or more second resource elements of the at least one of the one or more second OFDM symbols.

公开(公告)号：US20220070028A1

公开(公告)日：2022-03-03

申请号：US17409693

申请日：2021-08-23

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Xiaoxia ZHANG ,  Taesang YOO ,  Rajat PRAKASH

IPC: H04L25/02 ,  H04W64/00 ,  G01S3/48

Abstract: Techniques are provide for neural network based positioning of a mobile device. An example method for determining a line of sight delay, an angle of arrival, or an angle of departure value includes receiving reference signal information, determining one or more windowed channel impulse responses based on the reference signal information and one or more window functions, processing the one or more windowed channel impulse responses with a neural network, and determining an output of the neural network.

公开(公告)号：US20220030543A1

公开(公告)日：2022-01-27

申请号：US17122407

申请日：2020-12-15

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Alexandros MANOLAKOS ,  Rajat PRAKASH ,  Xiaoxia ZHANG ,  Marwen ZORGUI ,  Mukesh KUMAR

IPC: H04W64/00 ,  G01S5/02 ,  H04W24/10 ,  H04W4/029 ,  H04W8/24

Abstract: In an embodiment, a wireless node (e.g., UE or BS) receives from a network component (e.g., BS or core network component) a request for a positioning estimate of a UE associated with a specified time. The wireless node performs positioning measurements at a plurality of times, and determines (e.g., via interpolation or extrapolation) the positioning estimate associated with the specified time based on the positioning measurements. The wireless node transmits, to the network component, a report comprising the determined positioning estimate.

公开(公告)号：US20220030440A1

公开(公告)日：2022-01-27

申请号：US17377237

申请日：2021-07-15

Applicant: QUALCOMM Incorporated

Inventor： Sungwoo PARK ,  Wooseok NAM ,  Tao LUO ,  Junyi LI ,  Juan MONTOJO ,  Jing SUN ,  Xiaoxia ZHANG ,  Peter GAAL ,  Taesang YOO ,  Simone MERLIN ,  Srinivas YERRAMALLI ,  John Edward SMEE

IPC: H04W16/28 ,  H04W24/10 ,  H04B7/06

Abstract: A method, apparatus, or computer-readable medium with instructions for beam management for radio frequency (RF) sensing at a wireless device. The wireless device performs a first beamsweep of an RF signal and measures a reflection of the RF signal based on the first beamsweep. The wireless device performs a second beamsweep of the RF signal, wherein the first beamsweep is based on a different parameter than the second beamsweep and measures the reflection of the RF signal based on the second beamsweep. The wireless device selects a beam for RF sensing based on the first beamsweep and the second beamsweep.

公开(公告)号：US20210297212A1

公开(公告)日：2021-09-23

申请号：US16948155

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Jing SUN ,  Zhifei FAN ,  Srinivas YERRAMALLI ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Wooseok NAM ,  Juan MONTOJO ,  Tao LUO

IPC: H04L5/00 ,  H04W56/00 ,  H04W48/16

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information indicating a timing configuration for candidate positions of a discovery reference signal (DRS) window, wherein the DRS window is within an unlicensed millimeter wave (mmW) band, and wherein the timing configuration provides for repetition of a synchronization signal block (SSB) within the DRS window based at least in part on a wraparound scheme; and scan for the SSB in accordance with the timing configuration. Numerous other aspects are provided.

公开(公告)号：US20210266979A1

公开(公告)日：2021-08-26

申请号：US17249167

申请日：2021-02-22

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Xiaoxia ZHANG ,  Jing SUN ,  Srinivas YERRAMALLI ,  Zhifei FAN ,  Wooseok NAM ,  Tao LUO ,  Juan MONTOJO

IPC: H04W74/08 ,  H04L27/26 ,  H04L5/00

Abstract: Wireless communications systems and methods related to random access signaling are provided. A user equipment (UE) may transmit to a base station (BS) in a frequency band, a random access signal including at least one of a length in time or a length in frequency that is based on a subcarrier spacing (SCS) in the frequency band. The BS may receive the random access signal and transmit a response to the random access signal.

公开(公告)号：US20210226734A1

公开(公告)日：2021-07-22

申请号：US16746415

申请日：2020-01-17

Applicant: QUALCOMM Incorporated

Inventor： Seyed Ali Akbar FAKOORIAN ,  Jing SUN ,  Xiaoxia ZHANG ,  Chih-Hao LIU ,  Srinivas YERRAMALLI

IPC: H04L1/18 ,  H04W72/04 ,  H04W72/14

Abstract: A method, an apparatus, a base station, and a user equipment (UE) for wireless communication are provided to reduce the retransmission latency for URLLC communications. Upon receiving a downlink data transmission, a UE waits until it completes decoding of the received downlink data transmission before it can send an ACK/NAK report on the decoded downlink data transmission. In case of a decoding failure, the base station cannot start retransmission until the UE finishes the decoding of the downlink data transmission and sends the ACK/NAK report and until the base station finishes decoding of an NAK in the ACK/NAK report. This considerable retransmission latency may not meet stringent latency requirements of some URLLC applications. A two-stage ACK/NAK reporting is disclosed to reduce the retransmission latency where the UE sends an early ACK/NAK report upon partially completing the decoding of the downlink data transmission.

公开(公告)号：US20210211888A1

公开(公告)日：2021-07-08

申请号：US17208360

申请日：2021-03-22

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Rahul MALIK ,  Tamer KADOUS

IPC: H04W16/14 ,  H04W74/08 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a system bandwidth of shared spectrum partitioned into a plurality of bandwidth parts based on interference associated with each of the plurality of bandwidth parts. The base station may then transmit the configuration of the system bandwidth to a plurality of devices. A UE may receive, from a base station, a configuration of a system bandwidth of shared spectrum. The system bandwidth may be partitioned into a plurality of bandwidth parts based on interference associated with each of the plurality of bandwidth parts. The UE may then communicate with the base station on at least one of the bandwidth parts.

公开(公告)号：US20210144564A1

公开(公告)日：2021-05-13

申请号：US17089452

申请日：2020-11-04

Applicant: QUALCOMM Incorporated

Inventor： Wooseok NAM ,  Jing SUN ,  Tao LUO ,  Xiaoxia ZHANG ,  Sungwoo PARK ,  Akula REDDY ,  Ahmed Abdelaziz Ibrahim Abdelaziz ZEWAIL ,  Zhifei FAN ,  Srinivas YERRAMALLI

IPC: H04W16/28 ,  H04W72/04 ,  H04W56/00 ,  H04L25/02 ,  H04L5/00 ,  H04W76/27 ,  H04W80/02 ,  H04W74/08 ,  H04B7/06

Abstract: Some aspects described herein relate to receiving, in a configuration, a slot format indication, wherein the slot format indication includes directional information indicating spatial directions associated with communications based on the slot format, determining, for a slot indicated by the slot format indication and based on the directional information, the spatial direction, and communicating, within the slot and based on the spatial direction, with one or more nodes.