25 lines
1.3 KiB
Markdown
25 lines
1.3 KiB
Markdown
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## UWB Multi-device CTS Tests
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### General Requirements for test setup calibration
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Two Android UWB devices (DUT and reference device) are needed for these tests.
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The devices need to also obtain a valid country code to enable UWB. Country code
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sources used are (any one of them is sufficient):
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1. Country code from telephony connection (insert a working SIM card in the
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device)
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2. Country code from Wi-Fi access points which support 80211.d (have one or more
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wifi access points in the environment)
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3. Country code from location (turn on [location](
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https://support.google.com/android/answer/3467281?sjid=2881239016184571424-NA)
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on your devices and enable [location accuracy](
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https://support.google.com/android/answer/3467281?sjid=2881239016184571424-NA#location_accuracy)).
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#### Special Requirements for `CtsUwbMultiDeviceTestCase_RangingMeasurementTests` test case
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The devices should be placed in the line of sight environment in a non-reflective chamber with
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1 m distance between the DUT and reference device. Both devices should be positioned in portrait
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orientation perpendicular to the ground, with the screen facing perpendicular away from each other.
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Refer to [this page](
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https://source.android.com/docs/core/connect/presence-requirements#calibration-setup)
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for an example of similar physical setup with illustration.
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