Teledyne LeCroy UWBSpekChek and WiMedia Platform Test User Guide - Manual (Page 12)

UWBSpekChek™ WiMedia Platform Compliance
Test Guide
rev3.10 2 Page 12 of 33
Notes:
• Background observation checks verify DUT & INTD follow correct signaling and
slot contraction behavior. The DUT & INTD fail if they violate any checks defined
in section 3.2. of the WiMedia Platform Test Specification.
Test Case 1.4: TD.8.2.3.5 Listen For Required Portion of a Slot Test
This test verifies that the DUT correctly synchronizes to beacons sent by tester with
various beacon period start times (BPST). The test system begins by transmitting a
beacon in slot 2 using the normal superframe interval of 65538 microseconds. After the
DUT and INTD power up, the test system transmits every tenth beacon in slot 2 with a
start time that is X microseconds early or later from the nominal location. Every tenth
Superframe this is repeated with random values of X, from 12 to 0 microseconds early (-
guardtime to +guardtime microseconds). The Test System repeats this sequence with
beacons getting sent early and late for 4 superframes. The DUT and INTD must
continue to stay synchronized with the tester without forming an Alien Beacon Group.
Test procedure:
1. Start analyzer capture.
2. Test system starts the beacon period and sends a beacon in slot 2 with a beacon
interval of 65538 microseconds. The BP Length is set to 12.
3. Standard test start-up sequence.
4. The test system starts sending every 10th beacon early- from 12 to 0
microseconds. The tester continues beaconing but instead sends every 10th
beacon late. The beacons are sent from 0 to 8 microseconds late in intervals of
one microsecond. The sequence repeats 3 times.
5. Stop analyzer capture.
Notes:
• Background observation checks verify DUT & INTD follow correct signaling and
slot contraction behavior. The DUT & INTD fail if they violate any checks defined
in section 3.2. of the WiMedia Platform Test Specification.