公开(公告)号：US20240048205A1

公开(公告)日：2024-02-08

申请号：US18452430

申请日：2023-08-18

Applicant: QUALCOMM Incorporated

Inventor： Simone MERLIN ,  Alireza RAISSINIA ,  Bin TIAN ,  Xiaoxin ZHANG ,  Solomon TRAININ ,  Assaf Yaakov KASHER ,  Manish MADAN ,  John GRESZCZUK

IPC: H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04W74/08 ,  H04W80/02

CPC classification number: H04B7/0626 ,  H04B7/0617 ,  H04L5/0053 ,  H04L25/0226 ,  H04W74/0816 ,  H04W80/02

Abstract: This disclosure provides methods, devices and systems for radio frequency (RF) sensing in wireless communication systems. In some implementations, a transmitter device transmits sounding sequences configured for channel estimation over a wireless channel to a receiver device. The transmitter device also transmits or receives non-sounding frames associated with a channel report of the receiver device. The transmitter device transmits a frame soliciting the channel report from the receiver device. The transmitter device receives the channel report, which may include channel state information (CSI) of the wireless channel responsive to at least the sounding sequences. Some types of channel reports may take longer to generate than other types of channel reports. Transmitting or receiving the non-sounding frames during the time period may prevent other devices from accessing the wireless channel when the receiver device needs additional time to generate a certain type of channel report.

公开(公告)号：US20220417945A1

公开(公告)日：2022-12-29

申请号：US17823503

申请日：2022-08-30

Applicant: QUALCOMM Incorporated

Inventor： Simone MERLIN

IPC: H04W72/12 ,  H04L1/16 ,  H04L1/18 ,  H04W16/14 ,  H04W74/08

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus obtain a signal from a remote wireless node. The apparatus may switch between a first mode and a second mode in response to the signal. The apparatus may sense the shared transmission medium and sense if an absence of traffic is detected. The apparatus may delay data transmission for a fixed time interval from detecting the absence of traffic. The apparatus may initiate the data transmission at the end of the fixed time interval if operating in the first mode or initiate the data transmission at the end of a random time interval following the fixed time interval if operation in the second mode.

公开(公告)号：US20220345187A1

公开(公告)日：2022-10-27

申请号：US17238190

申请日：2021-04-22

Applicant: QUALCOMM Incorporated

Inventor： Simone MERLIN ,  Alireza RAISSINIA ,  Bin TIAN ,  Xiaoxin Zhang ,  Solomon TRAININ ,  Assaf KASHER ,  Manish MADAN ,  John GRESZCZUK

IPC: H04B7/06 ,  H04L25/02 ,  H04W74/08 ,  H04W80/02 ,  H04L5/00

Abstract: This disclosure provides methods, devices and systems for radio frequency (RF) sensing in wireless communication systems. In some implementations, a transmitter device transmits sounding sequences configured for channel estimation over a wireless channel to a receiver device. The transmitter device also transmits or receives non-sounding frames associated with a channel report of the receiver device. The transmitter device transmits a frame soliciting the channel report from the receiver device. The transmitter device receives the channel report, which may include channel state information (CSI) of the wireless channel responsive to at least the sounding sequences. Some types of channel reports may take longer to generate than other types of channel reports. Transmitting or receiving the non-sounding frames during the time period may prevent other devices from accessing the wireless channel when the receiver device needs additional time to generate a certain type of channel report.

公开(公告)号：US20220026551A1

公开(公告)日：2022-01-27

申请号：US17362295

申请日：2021-06-29

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: G01S13/00 ,  G01S13/72

Abstract: Techniques are provided for single sided beam management in a millimeter wave (mmW) communication system for use in bistatic radio frequency (RF) sensing. An example method of tracking targets with bistatic radio frequency sensing includes receiving a scanning reference signal, generating a scanning signal report indicating one or more target groups associated with the scanning reference signal, transmitting the scanning signal report, receiving tracking signal configuration information indicating a tracking reference signal associated with the one or more target groups, receiving the tracking reference signal identified in the tracking signal configuration information, and tracking the one or more target groups associated with the tracking reference signal.

公开(公告)号：US20220026550A1

公开(公告)日：2022-01-27

申请号：US17362147

申请日：2021-06-29

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: G01S13/00 ,  H04B17/27 ,  G01S13/72

Abstract: Techniques are provided for managing transmit and receive beams in a millimeter wave (mmW) communication system for use in bistatic radio frequency (RF) sensing. An example method of tracking targets with bistatic radio frequency sensing includes receiving one or more sensing reference signals, generating a signal report based at least in part on the one or more sensing reference signals, transmitting the signal report, receiving tracking signal configuration information, receiving one or more tracking reference signals identified in the tracking signal configuration information, and tracking one or more targets associated with the one or more tracking reference signals.

公开(公告)号：US20220003859A1

公开(公告)日：2022-01-06

申请号：US17364307

申请日：2021-06-30

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: G01S13/56 ,  G01S7/03 ,  G01S7/35

Abstract: Monostatic radar with progressive length transmission may be used with half-duplex systems or with full-duplex systems to reduce self-interference. The system transmits a first signal for a first duration and receives a first reflection of the first signal from a first object during a second duration. The system transmits a second signal for a third duration longer than the first duration and receives a second reflection of the second signal from a second object during a fourth duration. The system calculates a position of the first object and the second object based on the first reflection and the second reflection. The first signal, first duration, and second duration are configured to detect reflections from objects within a first distance of the system. The second signal, third duration, and fourth duration are configured to detect reflections from objects between the first distance and a second distance from the system.

公开(公告)号：US20210389407A1

公开(公告)日：2021-12-16

申请号：US17343476

申请日：2021-06-09

Applicant: QUALCOMM Incorporated

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

IPC: G01S5/02 ,  H04W64/00 ,  H04B17/318 ,  G01S5/00

Abstract: Disclosed are techniques for wireless sensing. In an aspect, a user equipment (UE) measures at least a line-of-sight (LOS) path and a non-line-of-sight (NLOS) path of a first downlink positioning reference signal (DL-PRS) from a first transmission-reception point (TRP), measures at least an LOS path and an NLOS path of a second DL-PRS from a second TRP, measures at least an LOS path and an NLOS path of a third DL-PRS from a third TRP, and enables a location of a non-participating target object to be determined based, at least in part, on reference signal time difference (RSTD) measurements between a time of arrival (ToA) of the LOS path of the first DL-PRS and the ToAs of the NLOS paths of the first, second, and third DL-PRS. In an aspect, the non-participating target object does not participate in determining its own location.

公开(公告)号：US20190296885A1

公开(公告)日：2019-09-26

申请号：US16361571

申请日：2019-03-22

Applicant: QUALCOMM Incorporated

Inventor： George CHERIAN ,  Alfred ASTERJADHI ,  Simone MERLIN ,  Abhishek Pramod PATIL

IPC: H04L5/14 ,  H04L1/00 ,  H04W72/08 ,  H04W24/06 ,  H04W80/02

Abstract: Aspects of the present disclosure relate to receiving, at a first node and from a second node configured for full-duplex wireless communications, a signal indicating an interference floor for receiving signals at the second node, wherein the interference floor is based on interference caused by a transmitter of the second node, determining, by the first node and based at least in part on the interference floor, a modulation and coding scheme (MCS) for transmitting one or more signals to the second node, and transmitting, by the first node and based on the MCS, the one or more signals to the second node.

公开(公告)号：US20180263038A1

公开(公告)日：2018-09-13

申请号：US15455435

申请日：2017-03-10

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Gwendolyn Denise BARRIAC ,  George CHERIAN ,  Simone MERLIN ,  Alfred ASTERJADHI

IPC: H04W72/04 ,  H04W52/34 ,  H04L1/00

CPC classification number: H04L1/0015 ,  H04W52/146 ,  H04W52/346 ,  H04W52/367 ,  H04W52/48

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication by a wireless device with a first AP are provided. In one aspect, an apparatus is configured to receive a valid Overlapping Basic Service Set (OBSS) PPDU transmission, e.g., transmitted by a second wireless device to a second AP. The apparatus may regard the valid OBSS PPDU as not having been received when a received power of the OBSS PPDU is below an OBSS Packet Detection (PD) level, and determine a transmission power (TXPWR) for a reuse transmission from the wireless device to the first AP based on an OBSS Packet Detection (PD) threshold and based on a TXPWR definition.

公开(公告)号：US20180084570A1

公开(公告)日：2018-03-22

申请号：US15801253

申请日：2017-11-01

Applicant: QUALCOMM Incorporated

Inventor： Gang DING ,  Simone MERLIN ,  Gwendolyn Denise BARRIAC ,  George CHERIAN ,  Alfred ASTERJADHI

IPC: H04W72/12 ,  H04L1/16 ,  H04W28/06 ,  H04W84/12 ,  H04L12/805

CPC classification number: H04W72/1268 ,  H04L1/1614 ,  H04L1/1621 ,  H04L1/1628 ,  H04L1/1685 ,  H04L47/36 ,  H04W28/065 ,  H04W72/1289 ,  H04W84/12

Abstract: An apparatus for wireless communication includes data defragmentation logic configured to receive, during a first transmit opportunity, a first data packet from a first device and a second data packet from a second device. The first data packet includes a first data fragment, and the second data packet includes a second data fragment. The apparatus also includes block acknowledgement generation logic configured to generate a block acknowledgement frame including a first block acknowledgement bitmap and a second block acknowledgement bitmap. The first block acknowledgement bitmap indicates at least the first data fragment received from the first device, and the second block acknowledgement bitmap indicates at least the second data fragment received from the second device. The apparatus further includes a wireless interface configured to transmit the block acknowledgement frame to the first device and to the second device.