Radiated performance of a wireless device

• US 7,925,253 B2
• Filed: 09/07/2007
• Issued: 04/12/2011
• Est. Priority Date: 09/08/2006
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Feenaghty, Dennis Michael, Breit, Gregory Alan
• Primary Examiner(s): Kincaid; Lester
• Assistant Examiner(s): Khan; Mehmood B
• Application Number:
  US11/852,228
• Publication Number:
  US 20080129615A1
• Time in Patent Office: 1,313 Days
• Field of Search: 455/226.1, 455423-425, 455418-420
• US Class Current: 455/425
• CPC Class Codes: G01R 29/105 using anechoic chambers; Chambers or open field sites used therefor test sites used for measuring on other objects than aerials G01R29/0828; wave absorbing devices H01Q17/00
• CPC Class Codes: H04B 17/102 Power radiated at antenna
• CPC Class Codes: H04B 17/15 Performance testing
• CPC Class Codes: H04B 17/26 using historical data, averaging values or statistics
• CPC Class Codes: H04B 17/29 Performance testing
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04B 7/2662 Arrangements for Wireless System Synchronisation
• CPC Class Codes: H04W 56/00 Synchronisation arrangements

Abstract

Systems, methods, apparatus, processors and computer-readable media include a radiated testing module that executes a predetermined radiated performance test on a wireless device. The test dictates various performance-related parameters to measure and log at each of a plurality of predetermined positions. Further, the wireless device receives synchronization information operable to enable synchronization between the logged measurements and each of the positions. The synchronized log allows the wireless device, or another apparatus, to determine a radiated performance characteristic based on a predetermined analysis protocol. Further, the described embodiments allow for the determination of several radiated performance characteristics in a single test, using a single, unaltered wireless device.

Claims

1. A method for determining a radiated performance characteristic of a wireless device, comprising:

determining a measured signal characteristic of a forward link only signal received by the wireless device at each one of a plurality of associated time instances, wherein the plurality of associated time instances is relative to a starting time instance;

receiving a synchronization signal;

setting the starting time instance in a log based on the synchronization signal, wherein the synchronization signal is a pulse signal; and

recording the measured signal characteristics in the log on the wireless device at each associated time instance in the plurality of associated time instances.

2. The method of claim 1, wherein the measured signal characteristic is a power gain.

3. The method of claim 1, further comprising determining an antenna gain pattern based on the measured signal characteristics.

4. The method of claim 3, wherein the antenna gain pattern is an antenna power gain pattern.

5. The method of claim 3, wherein the antenna gain pattern is an antenna complex voltage gain pattern.

6. The method of claim 3, further comprising determining a location of peak gain in the antenna gain pattern.

7. The method of claim 6, further comprising determining a peak receiver sensitivity using the location of peak gain in the antenna gain pattern.

8. The method of claim 7, further comprising determining a lowest power level at the location of peak gain in the antenna gain pattern at which a predetermined signal quality indicator can be received.

19. A product comprising a machine-readable medium and programming embodied in the medium that, when executed by a processor in the gateway device, implements the method of claim 1.

9. An apparatus for determining a radiated performance characteristic of a wireless device, comprising:

means for determining a measured signal characteristic of a forward link only signal received by the wireless device at each one of a plurality of associated time instances, wherein the plurality of associated time instances is relative to a starting time instance;

means for receiving a synchronization signal;

means for setting the starting time instance in a log based on the synchronization signal, wherein the synchronization signal is a pulse signal; and

means for recording the measured signal characteristics in the log on the wireless device at each associated time instance in the plurality of associated time instances.

10. The apparatus of claim 9, wherein the measured signal characteristic is a power gain.

11. The apparatus of claim 9, further comprising means for determining an antenna gain pattern based on the measured signal characteristics.

12. The apparatus of claim 11, wherein the antenna gain pattern is an antenna gain pattern selected from the group consisting an antenna power gain pattern and an antenna complex voltage gain pattern.

13. The apparatus of claim 11, further comprising means for determining a peak receiver sensitivity using a location of peak gain in the antenna gain pattern.

14. At least one processor configured to perform the actions of:

determining a measured signal characteristic of a forward link only signal received by a wireless device at each one of a plurality of associated time instances, wherein the plurality of associated time instances is relative to a starting time instance;

receiving a synchronization signal;

setting the starting time instance in a log based on the synchronization signal, wherein the synchronization signal is a pulse signal; and

recording the measured signal characteristics in the log on the wireless device at each associated time instance in the plurality of associated time instances.

15. The at least one processor of claim 14, wherein the measured signal characteristic is a power gain.

16. The at least one processor of claim 14, wherein the at least one processor is further configured to perform the actions of determining an antenna gain pattern based on the measured signal characteristics.

17. The at least one processor of claim 16, wherein the antenna gain pattern is an antenna gain pattern selected from the group consisting an antenna power gain pattern and an antenna complex voltage gain pattern.

18. The at least one processor of claim 16, wherein the at least one processor is further configured to perform the actions of determining a peak receiver sensitivity using a location of peak gain in the antenna gain pattern.