公开(公告)号：US11585916B2

公开(公告)日：2023-02-21

申请号：US16383119

申请日：2019-04-12

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Mithat C. Dogan ,  Mingguang Xu ,  Anuj Batra ,  Keangpo R. Ho ,  Akira Yamanaka

IPC: G01S13/84 ,  H04W12/63 ,  H04W28/18 ,  H04L27/26 ,  H04W28/24 ,  G01S13/18

Abstract: Some embodiments enable secure time of flight (SToF) measurements for wireless communication packets that include secure ranging packets with zero padded random sequence waveforms, including at higher frequency bands (e.g., 60 GHz) and in non-line of sight (NLOS) scenarios. Some embodiments provide a flexible protocol to allow negotiation of one or more security parameters and/or SToF operation parameters. For example, some embodiments employ: phase tracking and signaling to support devices with phase noise constraints to mitigate phase noise at higher frequencies; determining a number of random sequences (RSs) used for SToF to support consistency checks and channel verification; additional rules supporting sub-phases of the SToF operation; and/or determining First Path (FP), Sub-Optimal, and/or Hybrid path AWV modes and the pre-conditioning usage of these modes.

公开(公告)号：US20210211894A1

公开(公告)日：2021-07-08

申请号：US17208282

申请日：2021-03-22

Applicant: Apple Inc.

Inventor： Yakun Sun ,  Mingguang Xu ,  Mithat C. Dogan ,  Ehsan Haghani ,  Rohit U. Nabar ,  Matthew A. Mow

IPC: H04W16/28 ,  H01Q3/26 ,  H04W36/30

Abstract: An electronic device may be provided with wireless circuitry and control circuitry. The wireless circuitry may include a phased antenna array. Sensors and other circuitry in the electronic device may generate sensor data such as accelerometer data, gyroscope data, magnetometer data, location data, and spatial ranging data. The wireless circuitry may establish and maintain one or more wireless links with external devices based on the sensor data as the device moves over time. For example, the wireless circuitry may perform physical layer beam adjustments, inter-radio access technology handovers, intra-radio access technology handovers, and/or dual connectivity adjustments based on the sensor data. This may allow the device to maintain one or more wireless links without having to sweep the signal beam of the phased antenna array over its entire field of view each time the device has moved.

公开(公告)号：US10924987B2

公开(公告)日：2021-02-16

申请号：US16564259

申请日：2019-09-09

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Christiaan A. Hartman ,  Jarkko L. Kneckt ,  Mingguang Xu ,  Mithat C. Dogan ,  Yong Liu

IPC: H04W48/16 ,  H04W64/00 ,  H04L12/26 ,  H04B17/373

Abstract: Methods for performing error recovery during a ranging procedure may include negotiation one or more ranging parameters, including a set of secure training sequences and receipt of a first ranging frame that may include a first dialog token and may have an appended first secure training sequence. The first ranging frame may be decoded based on the first dialog token but not correlated based on the first secure training sequence. A first acknowledgment that may include an appended second secure training sequence may be transmitted. The second secure training sequence may be associated with a prior dialog token. A second ranging frame that may include a second dialog token and may have an appended third secure training sequence may be received. The second ranging frame may be decoded based on the third dialog token and correlated based on the third secure training sequence.

公开(公告)号：US10917804B2

公开(公告)日：2021-02-09

申请号：US16383091

申请日：2019-04-12

Applicant: Apple Inc.

Inventor： Su Khiong Yong ,  Mithat C. Dogan ,  Mingguang Xu ,  Anuj Batra ,  Keangpo R. Ho ,  Akira Yamanaka

IPC: H04W24/08 ,  H04W24/10 ,  H04W40/12 ,  H04W72/04 ,  H04B7/06 ,  H04W12/10 ,  H04W12/00

Abstract: Some embodiments include an electronic device, method, and computer program product for enabling secure time of flight (SToF) measurements for wireless communication packets that include ranging packets with zero padded random sequence waveforms, especially at higher frequency bands (e.g., 60 GHz) and in non-line of sight (NLOS) scenarios. Some embodiments provide a flexible protocol to allow negotiation of various security parameters and SToF operation parameters. For example, some embodiments employ: phase tracking and signaling to support devices with phase noise constraints to mitigate phase noise at higher frequencies; determining a number of random sequences (RSs) used for SToF to support consistency checks and channel verification; additional rules supporting sub-phases of the SToF operation; and/or determining First Path (FP), Sub-Optimal, and/or Hybrid path AWV modes and the pre-conditioning usage of these modes.

公开(公告)号：US20190342776A1

公开(公告)日：2019-11-07

申请号：US16383091

申请日：2019-04-12

Applicant: Apple Inc.

Inventor： Su Khiong YONG ,  Mithat C. Dogan ,  Mingguang Xu ,  Anuj Batra ,  Keangpo R. Ho ,  Akira Yamanaka

IPC: H04W24/08 ,  H04W24/10 ,  H04W40/12 ,  H04W72/04 ,  H04B7/06 ,  H04W12/10 ,  H04W12/00

Abstract: Some embodiments include an electronic device, method, and computer program product for enabling secure time of flight (SToF) measurements for wireless communication packets that include ranging packets with zero padded random sequence waveforms, especially at higher frequency bands (e.g., 60 GHz) and in non-line of sight (NLOS) scenarios. Some embodiments provide a flexible protocol to allow negotiation of various security parameters and SToF operation parameters. For example, some embodiments employ: phase tracking and signaling to support devices with phase noise constraints to mitigate phase noise at higher frequencies; determining a number of random sequences (RSs) used for SToF to support consistency checks and channel verification; additional rules supporting sub-phases of the SToF operation; and/or determining First Path (FP), Sub-Optimal, and/or Hybrid path AWV modes and the pre-conditioning usage of these modes.