公开(公告)号：US20210046899A1

公开(公告)日：2021-02-18

申请号：US16542886

申请日：2019-08-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Rohit UTTAM ,  Thomas E. UTTER ,  David T. PROEFKE ,  Kenneth STRONG

IPC: B60R25/20 ,  B60R25/04 ,  G07C9/00 ,  H04W4/021

Abstract: A transceiver is configured to: pair with a mobile device; and transmit a predetermined signal from an antenna to the mobile device. A zone module is configured to: receive a signal from the mobile device in response to the predetermined signal; and based on the signal, select a zone within which the mobile device is present from a group consisting of: a first zone that is defined by a first radius from the antenna; a second zone that excludes the first zone and that is defined by a second radius from the antenna, where the second radius is greater than the first radius; and a third zone that is radially outward of the second zone and that excludes the first and second zones.