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公开(公告)号：US20210400626A1
公开(公告)日：2021-12-23
申请号：US17349245
申请日：2021-06-16
Applicant: QUALCOMM Incorporated
Inventor： Srinivas YERRAMALLI , Lorenzo FERRARI , Taesang YOO , Alexandros MANOLAKOS , Yih-Hao LIN , Xiaoxia ZHANG , Rajat PRAKASH , Marwen ZORGUI , Danlu ZHANG
Abstract: Techniques are provided for passive positioning of user equipment (UE). An example method for passive positioning of a user equipment includes receiving a first positioning reference signal from a first station at a first time, receiving a second positioning reference signal from a second station at a second time, receiving a turnaround time value associated with the first positioning reference signal and the second positioning reference signal, and a distance value based on a location of the first station and a location of the second station, and determining a time difference of arrival based at least in part on the turnaround time value, the distance value, the first time, and the second time.
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公开(公告)号：US20250168626A1
公开(公告)日：2025-05-22
申请号：US18835161
申请日：2022-05-07
Applicant: QUALCOMM Incorporated
Inventor： Danlu ZHANG , Wei XI , Yu ZHANG , Chao WEI , Min HUANG , Hao XU , Giridhar Dhati MANDYAM , Patrick HUGHES
IPC: H04W12/037 , H04B7/04 , H04B7/0413
Abstract: Various embodiments may provide communication security at a physical layer. In some embodiments, a first wireless device at a first location may transmit to a second wireless device at a second location different portions of a message via two or more different spatially separated signal paths in a manner that enables the second wireless device to receive the complete message but prevents reception of the complete message by a third wireless device at a third location different from the second location. The second wireless device may receive different portions of the message via the two or more different spatially separated signal paths, may assemble the message from the received different portions of the message.
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公开(公告)号：US20250096807A1
公开(公告)日：2025-03-20
申请号：US18471230
申请日：2023-09-20
Applicant: QUALCOMM Incorporated
Inventor： Mustafa KESKIN , Roberto RIMINI , Danlu ZHANG , Bala RAMASAMY
Abstract: Aspects described herein include devices and methods for phase lock loop (PLL) output sharing between multiple communication chains in a wireless communication apparatus. In one aspect, an apparatus includes phase locked loop (PLL) circuitry having a shared PLL output, radar signal generation circuitry, a first transmission chain coupled to the shared PLL output and the radar signal generation circuitry, and a second transmission chain coupled to the shared PLL output and the radar signal generation circuitry.
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公开(公告)号：US20250055504A1
公开(公告)日：2025-02-13
申请号：US18718414
申请日：2022-11-22
Applicant: QUALCOMM Incorporated
Inventor： Danlu ZHANG , Sony AKKARAKARAN , Amichai SANDEROVICH , Bala RAMASAMY
IPC: H04B7/0404 , G01S5/02 , G01S11/02 , H04B7/0456 , H04B7/10
Abstract: Method and apparatus to determine a line-of-sight (LOS) path based at least on polarization characteristics. The apparatus determines a polarization used by a transmitter for at least one RS. The apparatus receives the at least one RS with a first received polarization in a first configuration and a second received polarization in a second configuration that is different from the first configuration. The apparatus measures polarization characteristics of the first received polarization and the second received polarization. The apparatus determines whether the at least one RS was received in a LOS path from the transmitter based on the measured polarization characteristics and expected received polarization characteristics, wherein the expected received polarization characteristics are based on the determined polarization used by the transmitter.
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公开(公告)号：US20250048314A1
公开(公告)日：2025-02-06
申请号：US18718151
申请日：2023-01-24
Applicant: QUALCOMM Incorporated
Inventor： Danlu ZHANG , Srinivas YERRAMALLI , Alexandros MANOLAKOS , Arnold Jason GUM
Abstract: Techniques are provided for passive positioning of user equipment (UE) with backhaul messaging. An example method for providing passive positioning information includes transmitting, with a first wireless node, assistance data associated with at least a first reference signal and a second reference signal, transmitting, with the first wireless node, the first reference signal at a first time via one or more over-the-air signals, providing instructions via a wired network connection to enable a second wireless node to transmit the second reference signal at a second time, and transmitting, with the first wireless node, turnaround time information based on the first time and the second time.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20240413863A1
公开(公告)日：2024-12-12
申请号：US18702265
申请日：2021-12-30
Applicant: QUALCOMM Incorporated
Inventor： Danlu ZHANG , Yu ZHANG , Min HUANG , Wei XI , Chao WEI , Hao XU , Allen Minh-Triet TRAN
IPC: H04B7/0456 , H01Q3/34
Abstract: Methods, systems, and devices for wireless communication are described. A first wireless device may transmit one or more signals to a second wireless device using an antenna panel including antenna elements that are arranged in a hexagonal configuration. The signals may be transmitted using one or more directional beams for multiple-input multiple-output communications with the second wireless device, the directional beams generated based on the antenna elements in the hexagonal configuration. The first wireless device may receive a signal from the second wireless device, and in some cases, the first wireless device may transmit one or more reference signals via the one or more directional beams, the reference signals associated with a set of two or more antenna elements of the antenna panel of the first wireless device. The second wireless device may perform measurements of the reference signals and transmit a measurement report to the first wireless device.
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公开(公告)号：US20240405841A1
公开(公告)日：2024-12-05
申请号：US18328642
申请日：2023-06-02
Applicant: QUALCOMM Incorporated
Inventor： Danlu ZHANG , Vasanthan RAGHAVAN , Junyi LI
IPC: H04B7/06
Abstract: Methods, systems, and devices for wireless communications are described, including detection of whether a first wireless device is location within a near-field distance of a second wireless device. The first wireless device measures phases of reference signals received at first antenna array of the first antenna array from a second antenna array of the second wireless device. The first wireless device determines, based on the phases, the values of quadratic terms associated with an equation for calculating the distance between a first antenna of the first antenna array and the center of the first antenna array or for calculating the distance between a second antenna of the second antenna array and the center of the second antenna array. The first wireless device determines, based on the quadratic terms, whether the first wireless device is within the near-field distance of the second wireless device.
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28.发明公开公开(公告)号：US20240305355A1
公开(公告)日：2024-09-12
申请号：US18562579
申请日：2021-07-13
Applicant: QUALCOMM Incorporated
Inventor： Danlu ZHANG , Min HUANG , Yu ZHANG , Hao XU
CPC classification number: H04B7/0697 , H04B7/10
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter of an orbital angular momentum (OAM) multiplexing based communication may determine an OAM azimuth mode assignment for open-loop transmission of a data stream using transmit diversity, wherein the OAM azimuth mode assignment comprises an assignment of two or more OAM azimuth modes to the data stream. The transmitter may transmit, to a receiver of the OAM multiplexing based communication, the data stream based at least in part on the OAM azimuth mode assignment. Numerous other aspects are described.
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公开(公告)号：US20240223267A1
公开(公告)日：2024-07-04
申请号：US18563322
申请日：2021-07-13
Applicant: QUALCOMM Incorporated
Inventor： Danlu ZHANG , Min HUANG , Yu ZHANG , Hao XU
CPC classification number: H04B7/18563 , H04B7/068
Abstract: Methods, systems, and devices for determining a transmit diversity across orbital angular momentum (OAM) modes are described. In some examples, a first device may select a subset of OAM modes for a transmit diversity scheme associated with communications between the first device and a second device. The first device may transmit an indication of the transmit diversity scheme, where the transmit diversity scheme may indicate the subset of OAM modes to the second device. The first device may then transmit signaling (e.g., a data packet, one or more signals, a data stream) to the second device using a set of transmitter circles of the first device. In response, the second device may transmit a feedback message, indicating signal strength measurements associated with one or more OAM modes. The first device may determine a set of OAM modes to use for subsequent signaling based on the feedback message.
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30.发明公开公开(公告)号：US20240048209A1
公开(公告)日：2024-02-08
申请号：US18257270
申请日：2022-03-04
Applicant: QUALCOMM Incorporated
Inventor： Min HUANG , Yu ZHANG , Chao WEI , Wei XI , Rui HU , Kangqi LIU , Chenxi HAO , Liangming WU , Jing DAI , Hao XU , Wanshi CHEN , Danlu ZHANG
CPC classification number: H04B7/0639 , H01Q1/24 , H01Q21/061 , H01Q21/20 , H01Q25/04 , H04B7/063 , H04B7/066 , H04B7/0691 , H04B7/0874
Abstract: Methods, systems, and devices for wireless communications are described. A receiving device may receive, from a transmitting device, a configuration indicating a set of orbital angular momentum (OAM) modes for joint reporting, where at least one of the set of OAM modes is associated with transmission via two or more of a plurality of sets of antennas arranged in a set of concentric circular arrays. The receiving device may transmit, to the transmitting device, a report indicating precoding information for each of at least a subset of the set of OAM modes, where the precoding information includes one or more first parameters common to the set of OAM modes and one or more second parameters for respective ones of the at least the subset of the set of OAM modes.
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