US 11,991,586 B2
Techniques for changing frequency of ranging based on location of mobile device
Robert W. Brumley, Menlo Park, CA (US); Peter C. Tsoi, San Jose, CA (US); and Yagil Burowski, Sunnyvale, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Dec. 4, 2020, as Appl. No. 17/112,566.
Claims priority of provisional application 63/074,750, filed on Sep. 4, 2020.
Prior Publication US 2022/0078578 A1, Mar. 10, 2022
Int. Cl. H04W 4/02 (2018.01); H04W 72/0446 (2023.01)
CPC H04W 4/023 (2013.01) [H04W 72/0446 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of ranging with an electronic device by a mobile device, the method comprising performing, by the mobile device:
performing ranging with the electronic device with via a wireless protocol to determine a range value, wherein the range value specifies a distance between the electronic device and the mobile device;
receiving a ranging packet from the electronic device via the wireless protocol, the ranging packet defining a plurality of ranging response slots in accordance with a transmission rate of the ranging packets of the electronic device;
selecting a response rate corresponding to a ranging response slot of the plurality of ranging response slots based on the range value, the selected response rate corresponding to a first rate that is lower than the transmission rate of the ranging packets by skipping one or more response periods for one or more received ranging packets; and
transmitting, to the electronic device, a ranging response during the selected ranging response slot.