Teledyne LeCroy UWBSpekChek and WiMedia Platform Test User Guide - Manual (Page 32)

UWBSpekChek™ WiMedia Platform Compliance
Test Guide
rev3.10 2 Page 32 of 33
d) Randomly indicate that other test system beacons are not received 10% of the time.
e) Randomly indicate that the other test system beacons are received with FCS errors 10% of the
time.
3. Standard test start-up sequence.
4. Once step 3 is complete a test system beacon behaves as if there is a collision if its
slot is reported with an HCS error three consecutive times by another test system
beacon. This test system beacon is relocated to a random slot between slot 13 and
20 and then marks itself moveable and contracts back following normal protocol
rules. If multiple collisions are detected at the same time – the test system chooses
unique slots between 13 and 20 for relocation.
5. After 3 minutes, the test system beacons stop relocating due to collisions. At this
point each test system beacon randomly reports HCS errors for slot 11 and slot 12
50% of the time.
6. After 2 minutes, test system stops beaconing.
7. After at least 2 seconds, stop the analyzer capture.
Notes:
• In addition to the normal background observation checks, verify DUT & INTD do
not lose sync with tester through multiple slot contractions and expansions.
Test Case 5.1: TD.8.5.1.1 Clock Accuracy
This test verifies that a DUT beacon interval indicates the minimum required clock
accuracy.
Test procedure:
1.
Start analyzer capture.
2. Standard test start-up sequence.
3. Stop analyzer capture.
Notes:
• Individual DUT beacon period intervals must be between 65536-1.4 to 65536+1.4
microseconds. For intervals longer than 1 superframe, the interval is divided by
the number of superframes. The result must be between 65536-1.4 to
65536+1.4.
Test Case 5.2: Shutdown Test
This test verifies device properly stops beaconing in shutdown / standby mode. Tester
starts by transmitting beacons in slots 2–10 with each beacon sent earlier or later than