公开(公告)号：US20140082038A1

公开(公告)日：2014-03-20

申请号：US14086066

申请日：2013-11-21

Applicant: QUALCOMM Incorporated

Inventor： Chengzhi Pan ,  Joseph Patrick Burke

IPC: H03H17/02

CPC classification number: H03H17/0248 ,  H03H15/023 ,  H03H19/004 ,  H03H2007/0192

Abstract: Passive switched-capacitor (PSC) filters are described herein. In one design, a PSC filter implements a second-order infinite impulse response (IIR) filter with two complex first-order IIR sections. Each complex first-order IIR section includes three sets of capacitors. A first set of capacitors receives a real input signal and an imaginary delayed signal, stores and shares electrical charges, and provides a real filtered signal. A second set of capacitors receives an imaginary input signal and a real delayed signal, stores and shares electrical charges, and provides an imaginary filtered signal. A third set of capacitors receives the real and imaginary filtered signals, stores and shares electrical charges, and provides the real and imaginary delayed signals. In another design, a PSC filter implements a finite impulse response (FIR) section and an IIR section for a complex first-order IIR section. The IIR section includes multiple complex filter sections operating in an interleaved manner.

公开(公告)号：US12120655B2

公开(公告)日：2024-10-15

申请号：US17456836

申请日：2021-11-29

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy Abdelghaffar ,  Jing Jiang ,  Joseph Patrick Burke ,  Tingfang Ji ,  Peter Gaal ,  Alexei Yurievitch Gorokhov

IPC: H04W72/044 ,  H04B7/06 ,  H04L5/00 ,  H04W72/0446

CPC classification number: H04W72/046 ,  H04B7/0684 ,  H04L5/0048 ,  H04W72/0446

Abstract: A user equipment (UE) may spatial time-division multiplex a plurality of sounding reference signal (SRS) ports, each of the plurality of SRS ports being associated with at least one of a set of orthogonal weights, the set of orthogonal weights corresponding to phase shifting, and transmit a plurality of SRSs via the plurality of spatially time-division multiplexed SRS ports simultaneously, each of the plurality of SRSs including at least two SRS repetition. The plurality of SRSs may be configured to form or present a quasi-co-location (QCL) receive (Rx) beam subspace. The UE may configure the plurality of SRSs to form the subspace as the QCL Rx beam subspace, and a base station may signal the UE to a specific Rx beam subspace such that it is aligned to the base station's beamforming direction, and achieve spatial multiplexing gain in the QCL Rx beam subspace.

公开(公告)号：US12081248B2

公开(公告)日：2024-09-03

申请号：US17451956

申请日：2021-10-22

Applicant: QUALCOMM Incorporated

Inventor： Ahmed Attia Abotabl ,  Abdelrahman Mohamed Ahmed Mohamed Ibrahim ,  Muhammad Sayed Khairy Abdelghaffar ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Joseph Patrick Burke ,  Renqiu Wang ,  Hwan Joon Kwon

IPC: H04B1/04 ,  H03F1/32

CPC classification number: H04B1/0475 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2200/451 ,  H04B2001/0425

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration indicating one or more directions for applying directional digital pre-distortion (DPD) to mitigate interference in a direction to another UE. The UE may transmit a communication to a wireless node based at least in part on applying the directional DPD according to the configuration. Numerous other aspects are described.

公开(公告)号：US11641228B2

公开(公告)日：2023-05-02

申请号：US16509890

申请日：2019-07-12

Applicant: Qualcomm Incorporated

Inventor： Dai Lu ,  Joseph Patrick Burke ,  Juergen Cezanne ,  Raju Hormis ,  Ozge Koymen ,  Robert Douglas

IPC: H04B7/06 ,  H04B1/44 ,  H04B1/58

Abstract: An apparatus is disclosed for implementing a flexible beamforming architecture. In an example aspect, the apparatus comprises an antenna array comprising a first antenna element with a first feed port and a second antenna element with a second feed port. The apparatus also comprises a wireless transceiver with a first dedicated transceiver path coupled to the first feed port and a second dedicated transceiver path coupled to the second feed port. The wireless transceiver also comprises a flexible beamforming network configured to selectively be in a first configuration that couples both the first dedicated transceiver path and the second dedicated transceiver path to a first intermediate transceiver path of the wireless transceiver, and be in a second configuration that connects the first dedicated transceiver path to the first intermediate transceiver path and connects the second dedicated transceiver path to a second intermediate transceiver path of the wireless transceiver.

公开(公告)号：US11611422B2

公开(公告)日：2023-03-21

申请号：US17086368

申请日：2020-10-31

Applicant: QUALCOMM Incorporated

Inventor： Charline Hao ,  Lida Akhoondzadehasl ,  Joseph Patrick Burke ,  Dai Lu ,  Muhammad Sayed Khairy Abdelghaffar ,  Allen Minh-Triet Tran ,  Shimman Arvind Patel ,  Tingfang Ji ,  Krishna Kiran Mukkavilli

IPC: H04B7/06 ,  H04L5/14 ,  H04B7/08 ,  H04W88/08 ,  H04L49/25

Abstract: A base station is disclosed that includes two separated antenna arrays. In a TDD mode of operation, both arrays are used for either transmit or receive. In a sub-band full-duplex mode of operation, one array is used to transmit downlink symbols while the remaining array is used to receive uplink symbols.

公开(公告)号：US11470489B2

公开(公告)日：2022-10-11

申请号：US16737532

申请日：2020-01-08

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Juergen Cezanne ,  Joseph Patrick Burke ,  Dai Lu

IPC: H04W24/08 ,  H04W8/24 ,  H04W72/04 ,  H04L5/10 ,  H04L5/00 ,  H04B17/309 ,  H04L1/00 ,  H04W80/02 ,  H04W76/27 ,  H04W16/28 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for transmitting, from a user equipment (UE) to a base station, a report indicating a beamforming capability of the UE, receiving, from a base station, a configuration for a plurality of control resource sets (CORESETs) based at least in part on the report, selecting multiple CORESETs of the plurality of CORESETs, and monitoring the selected multiple CORESETs during a monitoring occasion. In some examples, the UE may also monitor one or more unselected CORESETs that have a quasi co-location relationship with one of the selected CORESETs.

公开(公告)号：US20220182946A1

公开(公告)日：2022-06-09

申请号：US17677846

申请日：2022-02-22

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Prashanth Haridas Hande ,  Jay Kumar Sundararajan ,  Gokul Sridharan ,  Wei Yang ,  Wanshi Chen ,  Krishna Kiran Mukkavilli ,  Allen Minh-Triet Tran ,  Joseph Patrick Burke ,  Naga Bhushan

IPC: H04W52/14 ,  H04W52/54 ,  H04W52/36

Abstract: Generally, the described techniques provide for efficiently transmitting uplink signals to a base station using shared antennas associated with different power classes. A first device may be in communications with a base station using local antennas and may identify a second device having auxiliary antennas available for transmitting uplink signals to the base station. The local and auxiliary antennas may be associated with different power classes, and the first device may transmit a message to a base station indicating that the first device is capable of transmitting using antennas associated with different power classes. The first device may then receive configurations from a base station of different transmit powers to transmit on the antennas associated with the different power classes, and the first device may transmit uplink signals to the base station in accordance with the different transmit power configurations.

公开(公告)号：US11330584B2

公开(公告)日：2022-05-10

申请号：US16907789

申请日：2020-06-22

Applicant: QUALCOMM Incorporated

Inventor： Xiaoyin He ,  Peter Pui Lok Ang ,  Krishna Kiran Mukkavilli ,  Joseph Patrick Burke

IPC: H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04L7/033 ,  H04J11/00 ,  H04W72/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for interference management with adaptive resource block (RB) allocation. In an exemplary method, a base station (BS) obtains an indication that downlink transmissions to a first user equipment (UE) potentially interfere with uplink transmissions by a second UE, the BS dynamically allocates, based on the indication, a first set of one or more resource blocks (RBs) for the downlink transmissions to the first UE, and the BS then transmits an indication of the first set of RBs to the first UE. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US11265055B2

公开(公告)日：2022-03-01

申请号：US16911163

申请日：2020-06-24

Applicant: Qualcomm Incorporated

Inventor： Udara Fernando ,  Juergen Cezanne ,  Joseph Patrick Burke ,  Dai Lu

IPC: H04B7/06 ,  H04B3/52 ,  H03D7/16 ,  H04B3/54

Abstract: An apparatus is disclosed for flexible beamforming using frequency-division multiplexing. In an example aspect, an apparatus includes an antenna array and a wireless transceiver with two or more dedicated receive paths respectively coupled to two or more antenna elements of the antenna array, two or more mixers, a first combiner, a second combiner, and a switching circuit. The first combiner has a first input coupled to a first dedicated receive path and an output coupled to an input of a first mixer. The second combiner has a first input coupled to an output of the first mixer and a second input coupled to an output of a second mixer. The switching circuit is configured to selectively connect a second dedicated receive path to a second input of the first combiner or connect the second dedicated receive path to an input of the second mixer.

公开(公告)号：US11206071B2

公开(公告)日：2021-12-21

申请号：US16996831

申请日：2020-08-18

Applicant: QUALCOMM Incorporated

Inventor： Vasanthan Raghavan ,  Juergen Cezanne ,  Junyi Li ,  Dai Lu ,  Joseph Patrick Burke ,  Wenjun Li

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0456 ,  H04B7/08

Abstract: A UE may be configured to communicate using one of analog beamforming or hybrid beamforming. The UE may receive a set of beamformed signals from a base station. The UE may determine a set of angular spread values associated with a set of clusters in a channel between the base station and the UE based on the set of beamformed signals received from the base station. The UE may transmit the set of angular spread values to the base station. The UE may receive, from the base station based on the set of angular spread values, a set of transmission ranks associated with at least one cluster of the set of clusters. The UE may communicate at least one data stream with the base station across the at least one cluster using the set of transmission ranks associated with the at least one cluster of the set of clusters.