Tescom TC-3000C - Page 245

Appendix B. RF Test Cases of the TC-3000C
245
1 - single frequency (hopping is off)
5 - reduced hopping sequence
79 - hopping is on
2. BT channels are the TX frequency channels of the DUT, which are selected to test. The
frequency for each channel is calculated as (2402+ch) MHz, where ch is the frequency
channel. The frequency channel is the value from 0 to 78. Any quantity of the frequency
channels can be selected in the TC-3000C. The list of selected channels must be
separated by “-“. For instance, the record “0-20-40-60” means that the test case must be
executed for four frequency channels: 0, 20, 40 and 60, that is for the frequencies 2402
MHz, 2422 MHz, 2442 MHz and 2462 MHz.
3. Packet type parameter specifies which packet type will be used for the test case. If the
parameter is equal to ‘2-longest’ or ‘3-longest’ then the tester will read LMP features of the
DUT and the longest supported packet will be selected for the test case. Only EDR packet
can be selected
4. RX power is expected power at the input of the DUT’s receiver, measured in dBm.
5. Number of samples is the minimum number of returned payload bytes from the DUT.
If the flag “Use Default” is selected then all of displayed values of parameters are ignored and
the listed above values will be assigned automatically:
Hopping mode: 1 (Hopping is off)
BT channels: 0-39-78
RX Power: -20 dBm
Number of samples: 200,000 bytes
Additional test conditions
Test mode is Loop back, hopping is off, whitening is disabled, the packet type is 2-Longest, the
payload’s bit pattern is PRBS9.
Test Procedure
1. The tester calculates and sets the TX power to satisfy requirement of expected power at
the input of the DUT’s receiver. The TX power is calculated as P
TX
= P
RX DUT
+ PL, where
P
TX
is the TX power of the tester, P
RX DUT
is the expected power at the input of the DUT’s
receiver and PL is the path losses. To set the path losses value use Menu  Configuration
 DUT  More2/5  PathLoss.
2. If the DUT is not connected then the tester creates connection via access procedures
(paging and inquiry if necessary).
3. The tester will activate test mode (if the test mode is not activated yet) and will set all
necessary parameters of the test mode.
4. The tester checks whether the DUT transmits at maximum power. If not and the DUT
supports power control, then the tester will consecutively send LMP_incr_power_req
requests until the LMP_max_power response would be received from the DUT. The time
delay between two consequential LMP_incr_power_req requests depends on the
Pow.SetTime parameter (to modify the value use: Menu  Configuration  DUT 
More3/5  Pow.SetTime, default value is equal to 1 second).
5. The DUT is set to receive at the given channel frequency. The tester continuously sends
DPSK packets to the DUT at the given channel frequency.
6. Tester starts the bit error rate measurement. Tester stops the measurement if the number
of returned and processed payload bytes exceeds required number (see Number of
samples parameter). Tester records actual number of processed samples and number of
bitts with error.