US 2026/0036612 A1Published application

Simulating multi-directional mobility inside a radio frequency chamber through belt-driven movement systems

AssigneeT-Mobile USA, Inc.

InventorsEric Gordon Copping Christie, Jacob Andrew Fontana

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Abstract

Various implementations generally relate to systems and methods for simulating movement of multiple wireless devices inside an RF testing chamber. Internal surfaces of the RF testing chamber are covered with a radiation absorbent material. Multiple belt-driven movement systems including a belt and a holder component are affixed inside the RF testing chamber, and a wireless device is attached to each holder component of each belt-driven movement system. The wireless devices are enabled to move in a direction along the orientation of each belt-driven movement system by controlling a motor of each belt-driven movement system to simulate multi-directional mobility inside the RF testing chamber.

Claims20

Dependent claims

A system configured to simulate mobility of a wireless device inside a radio frequency (RF) testing chamber, the system comprising:

a radiation absorbent material;
and
a belt-driven movement system for each wireless device, wherein the belt-driven movement system includes:
a belt having a middle portion and loose ends, wherein the belt includes a jagged profile on one side and a flat profile on another side;
a holder component fixably connected to the belt, the holder component including a straight groove and a double curvature groove,
wherein a middle portion of the belt is placed on the straight groove and the loose ends of the belt are fixed onto each other around the double curvature groove via the jagged profile, and
wherein the wireless device is attachable to the holder component;
a turnbuckle-mounted timing pulley over which the belt is looped,
wherein the turnbuckle-mounted timing pulley is disposed on a wall of the RF testing chamber adjacent to the radiation absorbent material;
and
a motor over which the belt is looped,
wherein the motor is disposed on an opposite wall of the turnbuckle-mounted timing pulley adjacent to the radiation absorbent material and drives one-directional movement of the belt,
wherein the motor includes a bracket configured to maintain a belt tension to hold the wireless device in an upright position, and
wherein the motor is communicatively coupled to an external control device.

11 more elements

A method to simulate movement of multiple wireless devices inside a radio frequency (RF) testing chamber, the method comprising:

covering internal surfaces of the RF testing chamber with a radiation absorbent material;
affixing multiple belt-driven movement systems inside the RF testing chamber,
wherein each belt-driven movement system has a belt that traverses across the RF testing chamber and a holder component connected to the belt,
wherein a first pair of belt-driven movement systems are vertically oriented relative to a floor of the RF testing chamber,
wherein a second pair of belt-driven movement systems are horizontally oriented relative to the floor of the RF testing chamber, and
wherein a third pair of belt-driven movement systems are diagonally oriented relative to the floor of the RF testing chamber;
attaching a wireless device to each holder component of each belt-driven movement system;
enabling a first pair of wireless devices attached to the first pair of belt-driven movement systems that are vertically oriented to move in a vertical direction relative to the floor of the RF testing chamber;
enabling a second pair of wireless devices attached to the second pair of belt-driven movement systems that are horizontally oriented to move in a horizontal direction relative to the floor of the RF testing chamber;
enabling a third pair of wireless devices attached to the third pair of belt-driven movement systems that are diagonally oriented to move in a diagonal direction relative to the floor of the chamber;
and
controlling a motor of each belt-driven movement system to independently drive one-directional movements of each wireless device to simulate multi-directional mobility inside the RF testing chamber.

9 more elements

Dependencies are inferred from the claim text.