| CPC G01S 3/72 (2013.01) [H04B 17/24 (2015.01); G01S 3/043 (2013.01); G01S 3/64 (2013.01); H04B 17/27 (2015.01)] | 20 Claims |

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1. A method for a first wireless entity to determine an alignment angle toward a second wireless entity, the method comprising:
a) transmitting, by the first wireless entity, a first pulse configured to span an angular range between a first angle and a second angle, wherein the first pulse is phase modulated according to a first phase value at the first angle and a second phase value at the second angle, and wherein the phase varies monotonically from the first phase value at the first angle to the second phase value at the second angle;
b) receiving, from the second wireless entity, a message indicating a measured phase value; and
c) calculating the alignment angle toward the second wireless entity, according to the first and second angles, the first and second phase values, and the measured phase value.
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