×

Station selection for null data packet (NDP) ranging

  • US 10,264,544 B1
  • Filed: 05/14/2018
  • Issued: 04/16/2019
  • Est. Priority Date: 05/12/2017
  • Status: Active Grant
First Claim
Patent Images

1. A method for performing a ranging measurement procedure, the method comprising:

  • determining, at a first communication device, a schedule for a null data packet (NDP) ranging measurement procedure involving multiple second communication devices, including determining i) a start time of the NDP ranging measurement procedure, ii) a time duration of each time slot of a plurality of time slots during the NDP ranging measurement procedure, and iii) a time interval between adjacent time slots of the plurality of time slots during the NDP ranging measurement procedure, wherein each time slot of the plurality of time slots is at least for the first communication device to schedule one or more second communication devices to participate in an exchange of NDPs for ranging measurement during the ranging measurement procedure;

    generating, at the first communication device, one or more packets that include;

    i) an indication of the start time of the NDP ranging measurement procedure, ii) an indication of the time duration of each time slot of the plurality of time slots during the NDP ranging measurement procedure, and iii) an indication of the time interval between adjacent time slots of the plurality of time slots during the NDP ranging measurement procedure;

    transmitting, by the first communication device, the one or more packets to the multiple second communication devices prior to the NDP ranging measurement procedure;

    during the NDP ranging measurement procedure, transmitting, by the first communication device, a downlink NDP transmission to a group of second communication devices; and

    during the NDP ranging measurement procedure, receiving, at the first communication device, an uplink multi-user NDP transmission from the group of second communication devices.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×