公开(公告)号：US20190014466A1

公开(公告)日：2019-01-10

申请号：US16030710

申请日：2018-07-09

Applicant: MEDIATEK INC.

Inventor： Yongho SEOK ,  Chao-Chun WANG ,  James YEE

IPC: H04W12/04 ,  H04W12/06

Abstract: Methods and apparatus for performing secure ranging measurements between wireless devices are disclosed herein according to embodiments of the present invention. The described embodiments use key values to indicate which LTF sequence (e.g., LTF measurement exchange) to use for performing wireless ranging measurements. A LTF sequence that is received by a wireless device that does not correspond with the associated key value is determined to be invalid. Invalid LTF sequences may be disregarded as signal noise.

公开(公告)号：US20200029362A1

公开(公告)日：2020-01-23

申请号：US16516301

申请日：2019-07-19

Applicant: MEDIATEK INC.

Inventor： Tsung-Hsuan WU ,  Chao-Chun WANG ,  Yongho SEOK ,  Fu-Yu TSAI

IPC: H04W74/08 ,  H04L1/00 ,  H04L1/18 ,  H04L5/00

Abstract: An asymmetric handshaking design between an access point (AP) and a station (STA) is introduced. An access point is controlled to transmit packets in a first packet format. In response to packets transmitted from the access point in the first packet format, a station is switched to use a second packet format to transmit packets to form asymmetric handshaking with the access point when the station fails to use the first packet format to answer the access point.

公开(公告)号：US20190014491A1

公开(公告)日：2019-01-10

申请号：US16030718

申请日：2018-07-09

Applicant: MEDIATEK INC.

Inventor： Yongho SEOK ,  Chao-Chun WANG ,  James YEE

IPC: H04W24/08 ,  H04W12/06

CPC classification number: H04W24/08 ,  H04L63/12 ,  H04W4/00 ,  H04W4/025 ,  H04W12/06 ,  H04W12/12

Abstract: Embodiments of the present invention provide secure ranging measurements for wireless devices in multi-user (MU) mode. Specifically, a signaling procedure between an initiating wireless station (ISTA) and a responding wireless station (RSTA) is used to enable protection of randomized LTF sequences used in the secure ranging measurements. The signaling procedure may be performed in a HEz or VHTz mode and may include performing error recovery when operating in the HEz mode.