Facebook, Inc.

Meta Platforms, Inc.

Duong Pham

Julius Kusuma

Abhishek Tiwari

Pratheep Bondalapati

Ali Yazdan

Farbod Tabatabai

Rohan Ramakrishnan

Apparatuses, methods, and systems for surveying a site are disclosed. One method includes transmitting, by a ground unit, wireless signals while a directionally adjustable beam-forming antenna of the ground unit changes a beam direction of the transmission of the wireless signals to N beam directions, wherein the directionally adjustable beam-forming antenna includes a known motion, receiving and measuring, by an elevated unit, a magnitude and phase of the wireless signals transmitted by the ground unit through the N beam directions, determining N complex receive power representations wherein each complex receive power representation includes the measured magnitude and phase of the received wireless signals corresponding with each of the N beam directions, and determining a receive power summation comprising performing a complex summation of the N complex receive power representations.

Site survey for wireless base station placement

The disclosed method may include (1) receiving, at a receiving vehicle from a first transmitting vehicle, a first wireless signal carrying first data indicating a first location of the first transmitting vehicle, (2) determining a first bearing from which the first wireless signal is received at the receiving vehicle, (3) receiving, at the receiving vehicle from a second transmitting vehicle, a second wireless signal carrying second data indicating a second location of the second transmitting vehicle, (4) determining a second bearing from which the second wireless signal is received at the receiving vehicle, and (5) determining a receiving location of the receiving vehicle by triangulation using the first location, the first bearing, the second location, and the second bearing. Various other methods, systems, and computer-readable media are also disclosed.

Location determination when satellite navigation system is inaccessible

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Sherman Oaks, CA, United States of America

Duong Pham