Android 16 on Pixel 9 large negative one-sided RTT results [385524108]

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Bug

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Description

bk...@gmail.com

created issue #1

Dec 22, 2024 02:49PM

one-sided FTM RTT often results in huge negative (e.g. -144000000 mm, -3000000 mm) distances

Also, in these faulty RangingResults, RSSI=0 (while status=0)

See sample bug report:

https://drive.google.com/file/d/1DuowdSwM8TSI4azWeiJDsk3q_jPQJbvx/view?usp=drive_link

(one-sided RTT on Pixel 9 works in some cases, producing distances around 3000 m)

See also

https://issuetracker.google.com/368409117 Android 15 on Pixel 9 one-sided RTT almost always produces nonsensical values
and

https://issuetracker.google.com/361862747 Android 15 Pixel 9 one-sided RTT has several problems

Comments

vi...@google.com <vi...@google.com> Dec 23, 2024 07:58AM

Assigned to vi...@google.com.

vi...@google.com <vi...@google.com> Dec 23, 2024 09:15AM

Status: New

ba...@google.com <ba...@google.com> Dec 23, 2024 09:30AM

Assigned to ba...@google.com.

ba...@google.com <ba...@google.com> #2Dec 23, 2024 10:50AM

My SD card's file system supports a last modified timestamp; that is 'adb shell touch /mnt/sdcard/foo' works as expected. I need to check that calling from runtime works as well.

Issue 385524108

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Comments

vi...@google.com <vi...@google.com> Dec 23, 2024 07:58AM

vi...@google.com <vi...@google.com> Dec 23, 2024 09:15AM

ba...@google.com <ba...@google.com> Dec 23, 2024 09:30AM

ba...@google.com <ba...@google.com> #2Dec 23, 2024 10:50AM

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