Ranging measurements for spatially-aware user interface of a mobile device

A non-transitory computer readable medium having stored thereon instructions for causing one or more processors to perform operations comprising:

• determining, by a first mobile device, distance information corresponding to a distance between the first mobile device and a second mobile device;
• determining, by the first mobile device, angular information indicating an angle between a pointing direction of the first mobile device and the second mobile device;
• determining, based on the distance information and the angular information, that a location of the second mobile device lies within a first spatial region of a plurality of pre-defined spatial regions relative to the pointing direction of the first mobile device;
• and
• providing a user interface that displays an icon corresponding to the second mobile device in a predetermined position on the user interface based on the location of the second mobile device being within the first spatial region.

A mobile device, comprising:

• a memory configured to store processor-executable instructions;
• and
• one or more processors configured for executing the instructions stored in the memory, the instructions being executable for causing the one or more processors to perform operations comprising:
• determining distance information corresponding to a distance between a first mobile device and a second mobile device;
• determining angular information indicating an angle between a pointing direction of the first mobile device and the second mobile device;
• determining, based on the distance information and the angular information, that a location of the second mobile device lies within a first spatial region of a plurality of pre-defined spatial regions relative to the pointing direction of the first mobile device;
• and
• providing a user interface that displays an icon corresponding to the second mobile device in a predetermined position on the user interface based on the location of the second mobile device being within the first spatial region.