公开(公告)号：US09794091B1

公开(公告)日：2017-10-17

申请号：US15254663

申请日：2016-09-01

Applicant: QUALCOMM Incorporated

Inventor： Tevfik Yucek ,  Felix Bitterli ,  Shahram Abdollahi-Alibeik ,  Lalitkumar Nathawad ,  James Gardner ,  Christopher Pisz ,  Patrick Kelliher ,  Burcin Baytekin ,  Suresh Chandrasekaran ,  Mani Krishnan Venkatachari

IPC: H04L27/00 ,  H04B7/0413 ,  H04L12/933

CPC classification number: H04L27/0002 ,  G01S7/021 ,  H04B7/0413 ,  H04K3/226 ,  H04K3/822 ,  H04K2203/18 ,  H04L49/101

Abstract: A method and apparatus are disclosed for a wireless communication device capable of scanning for radar signals while detecting and/or receiving a wireless communication signal. The wireless communication device may include a plurality of local oscillator synthesizers to allow distinct frequency bands to be used for wireless communication signals and radar detection. In some embodiments, the wireless communication device may include a radar detection physical layer (PHY) circuit to detect the presence of radar signals within a received RF signal. The radar detection PHY may have limited functionality suitable primarily for radar signal analysis and not suitable for processing (decoding) communication signals.

公开(公告)号：US20170261591A1

公开(公告)日：2017-09-14

申请号：US15457750

申请日：2017-03-13

Applicant: QUALCOMM Incorporated

Inventor： Ning Zhang ,  Xiaoxin Zhang ,  Youhan Kim ,  Carlos Horacio Aldana ,  Patrick Kelliher ,  Yen-Feng Lee

IPC: G01S5/02 ,  G01S5/06 ,  G01S11/04

CPC classification number: G01S5/12 ,  G01S5/14 ,  G01S11/02 ,  G01S13/76 ,  H04W64/00

Abstract: This disclosure provides systems, methods and apparatuses for performing ranging operations between wireless devices. In some implementations, wireless devices can exchange ranging packets that include packet extensions containing a plurality of long training fields (LTFs). The wireless devices can use the LTFs in the ranging packets to obtain a plurality of round-trip time (RTT) values based on a single exchange of ranging packets. The wireless devices also can use the LTFs to estimate angle of arrival (AoA) and angle of departure (AoD) information of the exchanged ranging packets.