Aligning and testing system for communication device manufacturing

• US 20040207422A1
• Filed: 04/11/2003
• Published: 10/21/2004
• Est. Priority Date: 04/11/2003
• Status: Abandoned Application

• Current Assignee: Nokia Corporation
• Original Assignee: Nokia Corporation
• Inventors: Muurinen, Jari, Lehtinen, Kari Tapani
• Application Number:
  US10/412,756
• Publication Number:
  US 20040207422A1
• Time in Patent Office: Days
• US Class Current: 324/758
• CPC Class Codes: H04B 17/11 for calibration
• CPC Class Codes: H04B 17/12 of transmit antennas, e.g. of the amplitude or phase
• CPC Class Codes: H04B 17/14 of the whole transmission and reception path, e.g. self-test loop-back
• CPC Class Codes: H04B 17/16 Test equipment located at the transmitter
• CPC Class Codes: H04B 17/29 Performance testing

Abstract

A system and method for aligning and testing a communication device during production speeds up the overall production testing and thus shortens the testing time. The system comprises a measuring unit, RF switch, power supply and test bed comprising several modular test places, and is synchronized to perform test procedures with a minimum amount of control information transfer between the device under test and the test system. This is achieved by using low level and real time control operations, and configuring the test hardware to be only a little bit better and a little bit faster than the device under test itself.

Claims

1. A method for aligning and testing during manufacturing at least one communication device operable in at least one frequency band by running a test procedure which is programmed in a memory of the communication device and in a memory of a control unit of a measurement unit, said test procedure comprising aligning and testing operations, the method comprising the steps of:

executing at least part of the test procedure by the communication device itself; and

minimizing information transfer between the control unit of the measuring device and the communication device during the test procedure.

2. A method according to claim 1, wherein executing the test procedure as a whole is completed in a period of time which depends on the operating rate of the communication device.

3. A method according to claim 1, wherein the test procedure is divided into a plurality of sequences, where each sequence is optimized firstly to minimize the information transfer between the communication device and the control unit of the measurement unit and secondly to maintain error check capabilities.

4. A method according to claim 3, wherein at least part of sequences of said plurality of sequences are executed simultaneously.

5. A method according to claim 1, wherein activating the communication device under test and alignment to a test mode is controlled by the control unit of the measurement unit and comprises the steps of:

switching a power supply on to supply power to the communication device; and

sending a command to the communication device to start said at least part of the test procedure.

6. A method according to claim 5, wherein activating the communication device under test and alignment to a test mode is controlled by the control unit of the measurement unit and comprises the further step of:

switching a RF path on between the communication device and a RF unit of the measurement unit.

7. A method according to claim 5, wherein after sending a command to the communication device the control unit of the measuring unit is changed to a listen mode.

8. A method according to claim 1, wherein the method comprises the further step of:

sending a message to the control unit of the measuring unit by the communication device after said at least part of the test procedure is completed.

9. A method according to claim 1, wherein the method comprises the further step of:

storing test results of said at least part of the test procedure to the memory of the communication device.

10. A method according to claim 9, wherein the method comprises the further step of:

sending the test results after the test procedure as a whole is completed from the memory of the communication device to the control unit of the measurement unit for further processing.

11. A method according to claim 10, wherein the method comprises the step of:

further processing the test results of the communication device in the control unit of the measurement unit in parallel with executing a new test procedure of a new communication device under test and alignment.

12. A method according to claim 11, wherein the method comprises the step of:

storing the test results of the communication device to a database by the control unit of the measurement unit in parallel with executing a new test procedure of a new communication device under test and alignment.

13. A method according to claim 11, wherein the method comprises the step of:

outputting the test results of the communication device to a user interface by the control unit of the measurement unit in parallel with executing a new test procedure of a new communication device under test and alignment.

14. A method according to claim 1, wherein at least part of the test procedure is repeated in each frequency band of operation of the communication device.

15. A method according to claim 1, wherein the test procedure is part of a software program, which is programmed to the memory of the communication device before starting production aligning and testing.

16. A method according to claim 1, wherein the test procedure is a first module of a software program and the rest of a software program is a second module, where the first module is independent of the second module, and the first module is programmed to the memory of the communication device before starting the production aligning and testing, and the second module is programmed to the memory of the communication device after completing the production aligning and testing.

17. A method according to claim 16, wherein the first module is erased from the memory of the communication device after completing the production aligning and testing.

18. A method according to claim 16, wherein the memory of the communication device is a flash memory.

19. A method according to claim 1, wherein the communication device is a mobile phone.

20. A system for aligning and testing during manufacturing at least one communication device operable in at least one frequency band arranged to run a test procedure which is programmed in a memory of the communication device and in a memory of a control unit of a measurement unit, said test procedure comprising aligning and testing operations, the system comprising:

means for executing at least part of the test procedure by the communication device itself; and

means for minimizing information transfer between the control unit of the measuring device and the communication device during the test procedure.

21. A system according to claim 20, wherein the system is arranged to execute the test procedure as a whole in a period of time which depends on the operating rate of the communication device.

22. A system according to claim 20, wherein the test procedure is arranged to be divided into a plurality of sequences, where each sequence is optimized firstly to minimize the information transfer between the communication device and the control unit of the measurement unit and secondly to maintain error check capabilities.

23. A system according to claim 22, wherein at least part of sequences of said plurality of sequences are arranged to be executed simultaneously.

24. A system according to claim 22, wherein activating the communication device under test and alignment to a test mode is arranged to be controlled by the control unit of the measurement unit, the system comprising:

means for switching a power supply on to supply power to the communication device; and

means for sending a command to the communication device to start said at least part of the test procedure.

25. A system according to claim 24, wherein activating the communication device under test and alignment to a test mode is arranged to be controlled by the control unit of the measurement unit, the system comprising means for switching a RF path on between the communication device and a RF unit of the measurement unit.

26. A system according to claim 24, wherein after sending a command to the communication device the control unit of the measuring unit is arranged to be changed to a listen mode.

27. A system according to claim 20, wherein the system comprises means for sending a message to the control unit of the measuring unit by the communication device after said at least part of the test procedure is completed.

28. A system according to claim 20, wherein the system comprises means for storing test results of said at least part of the test procedure to the memory of the communication device.

29. A system according to claim 28, wherein the system comprises means for sending the test results after the test procedure as a whole is completed from the memory of the communication device to the control unit of the measurement unit for further processing.

30. A system according to claim 29, wherein the system comprises means for further processing the test results of the communication device in the control unit of the measurement unit in parallel with executing a new test procedure of a new communication device under test and alignment.

31. A system according to claim 30, wherein the system comprises means for storing the test results of the communication device to a database by the control unit of the measurement unit in parallel with executing a new test procedure of a new communication device under test and alignment.

32. A system according to claim 30, wherein the system comprises means for outputting the test results of the communication device to a user interface by the control unit of the measurement unit in parallel with executing a new test procedure of a new communication device under test and alignment.

33. A system according to claim 20, wherein at least part of the test procedure is arranged to be repeated in each frequency band of operation of the communication device.

34. A system according to claim 20, wherein the test procedure is arranged to be part of a software program, which is programmed to the memory of the communication device before starting production aligning and testing.

35. A system according to claim 20, wherein the test procedure is arranged to be a first module of a software program and the rest of a software program is arranged to be a second module, where the first module is independent of the second module, and the first module is programmed to the memory of the communication device before starting the production aligning and testing, and the second module is programmed to the memory of the communication device after completing the production aligning and testing.

36. A system according to claim 35, wherein the first module is arranged to be erased from the memory of the communication device after completing the production aligning and testing.

37. A system according to claim 35, wherein the memory of the communication device is a flash memory.

38. A system according to claim 20, wherein the communication device is a mobile phone.

39. An interface for aligning and testing during manufacturing at least one communication device operable in at least one frequency band to co-operate with an operating system of the communication device, by running a test procedure which is programmed in a memory of the communication device and in a memory of a controller of a measuring unit, said test procedure comprising aligning and testing operations, and said operating system comprising system operations, the interface comprising computer program code for executing at least part of the test procedure by the communication device itself and for minimizing information transfer between the control unit of the measuring unit and the communication device during the test procedure.

40. An interface according to claim 39, wherein the test procedure is arranged to be divided into a plurality of sequences, where each sequence is optimized firstly to minimize the information transfer between the communication device and the control unit of the measurement unit and secondly to maintain error check capabilities.