System and method for testing a radio frequency transceiver by controlling test flow via an induced interrupt

Patent metadata

Field	Value
Publication number	US-10084554-B2
Application number	US-201414202104-A
Country	US
Kind code	B2
Filing date	Mar 10, 2014
Priority date	Mar 10, 2014
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

Abstract

System and method for controlling test flow of a radio frequency (RF) signal transceiver device under test (DUT) by inducing an interrupt via an internal signal interface or an external signal interface (with one example of the latter being a baseband signal interface for conveying audio signals). With exemplary embodiments, one or more DUT control signals are provided to or otherwise initiated within the DUT by inducing an interrupt, including inducement via use of the signal interface. With further exemplary embodiments, one or more test control signals are also provided to RF circuitry that responds by transmitting one or more RF receive signals for the DUT and receives from the DUT one or more RF transmit signals related to the one or more DUT control signals.

First claim

What is claimed is:

1. A method of testing a radio frequency (RF) signal transceiver device under test (DUT) by initiating test flow within said DUT with an external interrupt signal, comprising:
receiving, via at least one external baseband signal interface of said DUT, at least first and second interrupt signals;
operating an application processor within said DUT to
detect said first interrupt signal;
provide, following said detection of said first interrupt signal, a first one or more DUT control signals;
detect said second interrupt signal;
provide, following said detection of said second interrupt signal, a second one or more DUT control signals;

operating a peripheral processor within said DUT to
execute, in response to said first one or more DUT control signals, a first one or more test commands previously stored within said DUT;
transmit and receive, via a common bi-directional conductive RF signal path separate from said at least one external baseband signal interface, first outgoing and incoming RF signals to and from said tester, respectively, in response to said execution of said first one or more test commands;
execute, in response to said second one or more DUT control signals, a second one or more test commands previously stored within said DUT; and
transmit and receive, via said common bi-directional conductive RF signal path, second outgoing and incoming RF signals to and from said tester, respectively, in response to said execution of said second one or more test commands.

2. The method of claim 1 , wherein said first and second one or more test commands previously were stored within said peripheral processor.

3. The method of claim 1 , wherein at least one of said second one or more test commands is different from at least one of said first one or more test commands.

4. The method of claim 1 , wherein at least one of said second one or more DUT control signals is different from at least one of said first one or more internal DUT control signals.

5. The method of claim 1 , wherein:
at least one of said second one or more test commands is different from at least one of said first one or more test commands; and
at least one of said second one or more internal DUT control signals is different from at least one of said first one or more internal DUT control signals.

6. The method of claim 1 , wherein said detection of said interrupt signal comprises detection of a voltage potential between first and second electrical connections within said application processor.

7. The method of claim 1 , wherein said detection of said interrupt signal comprises detection of a short circuit between first and second electrical connections within said application processor.

8. The method of claim 1 , wherein said operating an application processor comprises operating an application processor within said DUT.

Assignees

• Litepoint Corp

Inventors

• Olgaard Christian Volf
• Wang Ruizu
• Shi Guang

Classifications

• H04B17/0085 Primary

  using test signal generators · CPC title

• H04B17/24 Primary

  with feedback of measurements to the transmitter · CPC title