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.