System and method for testing multiple digital signal transceivers in parallel
View Patent ↗A method for contemporaneously testing multiple digital data packet transceivers using predefined UL test sequences of synchronized data packets by pre-configuring test measurements, and multiplexing and interleaving portions of the data packets from the devices under test (DUTs).
1. A method of testing a plurality of data signal transmitters with a data signal analyzer, comprising:
receiving a plurality N of packet data signals simultaneously from a corresponding plurality N of data signal transmitters, wherein
each one of said plurality N of packet data signals has a respective plurality of sequential signal intervals,
each one of said plurality of sequential signal intervals has a signal interval duration I, and
each one of said plurality N of packet data signals has a respective packet data signal characteristic during each one of said respective plurality of sequential signal intervals;
capturing a respective portion of said respective plurality of sequential signal intervals from each one of said plurality N of packet data signals to provide a plurality N of captured portions of said respective plurality of sequential signal intervals, wherein each one of said plurality N of captured portions of said respective plurality of sequential signal intervals has a captured signal duration C; and
processing each one of said plurality N of captured portions of said plurality of sequential signal intervals in accordance with a signal test having a test duration T associated therewith;
wherein said captured signal duration C is
greater than or equal to said test duration T when said test duration T is greater than a portion I/N of said signal interval duration I, and
less than or equal to said portion I/N of said signal interval duration I when said test duration T is less than or equal to said portion I/N of said signal interval duration I.
2. The method of claim 1 , wherein said respective plurality of sequential signal intervals comprises a respective plurality of sequential signal time slots.
3. The method of claim 1 , further comprising initiating simultaneous transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals.
4. The method of claim 1 , further comprising initiating synchronous transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals.
5. The method of claim 1 , further comprising initiating transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals by transmitting a trigger signal simultaneously to each of said plurality of data signal transmitters.
6. The method of claim 1 , wherein said plurality N of captured portions of said respective plurality of sequential signal intervals comprises a plurality N of time-interleaved portions of said respective plurality of sequential signal intervals.
7. A method of testing a plurality of data signal transmitters with a data signal analyzer, comprising:
receiving a plurality N of packet data signals simultaneously from a corresponding plurality N of data signal transmitters, wherein
each one of said plurality N of packet data signals has a respective plurality of sequential signal intervals,
each one of said plurality of sequential signal intervals has a signal interval duration I, and
each one of said plurality N of packet data signals has a respective packet data signal characteristic during each one of said respective plurality of sequential signal intervals;
capturing a respective portion of said respective plurality of sequential signal intervals from each one of said plurality N of packet data signals to provide a plurality N of captured portions of said respective plurality of sequential signal intervals, wherein each one of said plurality N of captured portions of said respective plurality of sequential signal intervals has a captured signal duration C; and
processing each one of said plurality N of captured portions of said plurality of sequential signal intervals in accordance with a signal test having a test duration T associated therewith;
wherein said captured signal duration C is greater than or equal to said test duration T when said test duration T is greater than a portion I/N of said signal interval duration I.
8. The method of claim 7 , wherein said respective plurality of sequential signal intervals comprises a respective plurality of sequential signal time slots.
9. The method of claim 7 , further comprising initiating simultaneous transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals.
10. The method of claim 7 , further comprising initiating synchronous transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals.
11. The method of claim 7 , further comprising initiating transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals by transmitting a trigger signal simultaneously to each of said plurality of data signal transmitters.
12. The method of claim 7 , wherein said plurality N of captured portions of said respective plurality of sequential signal intervals comprises a plurality N of time-interleaved portions of said respective plurality of sequential signal intervals.
13. A method of testing a plurality of data signal transmitters with a data signal analyzer, comprising:
receiving a plurality N of packet data signals simultaneously from a corresponding plurality N of data signal transmitters, wherein
each one of said plurality N of packet data signals has a respective plurality of sequential signal intervals,
each one of said plurality of sequential signal intervals has a signal interval duration I, and
each one of said plurality N of packet data signals has a respective packet data signal characteristic during each one of said respective plurality of sequential signal intervals;
capturing a respective portion of said respective plurality of sequential signal intervals from each one of said plurality N of packet data signals to provide a plurality N of captured portions of said respective plurality of sequential signal intervals, wherein each one of said plurality N of captured portions of said respective plurality of sequential signal intervals has a captured signal duration C; and
processing each one of said plurality N of captured portions of said plurality of sequential signal intervals in accordance with a signal test having a test duration T associated therewith;
wherein said captured signal duration C is less than or equal to said portion I/N of said signal interval duration I when said test duration T is less than or equal to said portion I/N of said signal interval duration I.
14. The method of claim 13 , wherein said respective plurality of sequential signal intervals comprises a respective plurality of sequential signal time slots.
15. The method of claim 13 , further comprising initiating simultaneous transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals.
16. The method of claim 13 , further comprising initiating synchronous transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals.
17. The method of claim 13 , further comprising initiating transmission by said plurality of data signal transmitters of said corresponding plurality of packet data signals by transmitting a trigger signal simultaneously to each of said plurality of data signal transmitters.
18. The method of claim 13 , wherein said plurality N of captured portions of said respective plurality of sequential signal intervals comprises a plurality N of time-interleaved portions of said respective plurality of sequential signal intervals.