Method for testing multiple data packet signal transceivers with a shared tester to maximize tester use and minimize test time
View Patent ↗Methods for testing multiple data packet signal transceiver devices under test (DUTs) with a shared tester. The DUTs transmit their data packet signals until predetermined numbers of data packets have been transmitted or predetermined time intervals expire, following which, each DUT awaits a synchronization request to begin transmitting data packets to the tester. Alternatively, the tester determines when its receiver is available for receiving data packets, following which, synchronization requests are sent to respective DUTs to initiate their transmissions of data packets to the tester. Further alternatively, power levels among data packets initially transmitted from the DUTs are monitored to determine when they are indicative of them having settled. As each DUT data packet signal power settles, a status signal indicating the settled nature of each DUT is provided to the tester which then begins receiving the respective DUT data packet signals, as they settle in power, for analysis.
1. A method for testing multiple data packet signal transceiver devices under test (DUTs) with a shared tester, comprising:
receiving, with a shared tester, at least one status signal separate from and indicative of power variations among data packets within each one of a plurality of DUT data packet signals from a plurality of DUTs;
following confirmation of availability of data packet signal receiver circuitry of said shared tester to receive a DUT data packet signal, and reception of said at least one status signal being indicative of a power settling variation less than a first variation among data packets within a DUT data packet signal from a first one of said plurality of DUTs, performing at least one of
conveying, from said shared tester, a first synchronization request signal to said first one of said plurality of DUTs, or
receiving, with said tester, said DUT data packet signal from said first one of said plurality of DUTs; and
following said reception of said DUT data packet signal from said first one of said plurality of DUTs, and reception of said at least one status signal being indicative of a power settling variation less than a second variation among data packets within a DUT data packet signal from a second one of said plurality of DUTs, performing at least one of
conveying, from said shared tester, a second synchronization request signal to said second one of said plurality of DUTs, or
receiving, with said tester, said DUT data packet signal from said second one of said plurality of DUTs.
2. The method of claim 1 , wherein at least one of said first and second variations among data packets within a DUT data packet signal comprises power variations between successive data packets.
3. The method of claim 1 , wherein at least one of said first and second variations among data packets within a DUT data packet signal comprises power variations between mutually adjacent data packets.
4. The method of claim 1 , wherein said receiving, with said shared tester, said DUT data packet signal from said first one of said plurality of DUTs comprises receiving, with said shared tester, said DUT data packet signal from said first one of said plurality of DUTs following reception of a first synchronization confirmation signal responsive to said first synchronization request signal.