METHODS AND APPARATUS FOR RAPID AND COST EFFECTIVE TESTING OF WIRELESS SYSTEMS

• US 20140177459A1
• Filed: 12/21/2012
• Published: 06/26/2014
• Est. Priority Date: 12/21/2012
• Status: Abandoned Application

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Chen, Camille, Li, Lei, Chen, Hsin-Yao, Watt, Alf O., Cheung, David B.
• Application Number:
  US13/725,801
• Publication Number:
  US 20140177459A1
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04B 17/14 of the whole transmission and reception path, e.g. self-test loop-back
• CPC Class Codes: H04L 41/0806 for initial configuration or provisioning, e.g. plug-and-play
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

Apparatus and methods for rapid, cost effective testing of wireless systems. In one embodiment, a unit under test (UUT) is tested by a test “server”. The UUT and test server communicate via a “connectionless” protocol which is based on beacons (and beacon responses) which can carry one or more test primitives. The aforementioned “connection-less” test protocol can be performed without wireless network configuration, which greatly reduces test time, Additionally, exemplary solutions are presented for “lock-up” of the UUT and the test server.

Claims

1. A method for testing a wireless device, comprising:

configuring the wireless device to act at least in part as a wireless network;

transmitting a first signal from the wireless device identifying the wireless network;

responsive to reception of a response with an embedded message for the wireless network, executing one or more test procedures from an array of tests based on the embedded message;

embedding the one or more results of the one or more test procedures within a second signal; and

transmitting the second signal.

2. The method of claim 1, wherein the first and second signals each comprise a server beacon.

3. The method of claim 2, where the server beacons each comprise an Institute of Electrical and Electronic Engineers (IEEE) 802.11 beacon.

4. The method of claim 2, where the server beacons each comprise a header, a frame body and a check sequence.

5. The method of claim 4, where the header comprises a source address and a destination address.

6. The method of claim 4, where the header comprises a unique device identifier associated with the wireless device.

7. The method of claim 4, where the frame body comprises a time stamp and one or more information elements.

8. The method of claim 7, where at least one of the one or more information elements uniquely identifies a session and is configured to cause a test server to uniquely associate with the session.

9. The method of claim 1, where the first signal is transmitted multiple times to facilitate reception.

10. A method for testing a wireless device with a test server, comprising:

receiving a first server signal from a wireless device, the first signal identifying a wireless network;

selecting one or more test procedures from a plurality of test procedures;

embedding a first information element associated with the selected one or more test procedures and a second information element associated with the wireless network within a response;

transmitting the response; and

responsive to reception of a second server signal comprising one or more test results corresponding to the selected one or more test procedures, storing the one or more test results.

11. The method of claim 10, where the response comprises an Institute of Electrical and Electronic Engineers (IEEE) 802.11 beacon response.

12. The method of claim 10, further comprising verifying a third information element embedded within the first server signal which uniquely identifies a session with the test server.

13. The method of claim 10, where the first server signal includes a unique identifier.

14. The method of claim 13, where the unique identifier comprises a time stamp.

15. The method of claim 13, where the unique identifier comprises an incrementing count.

16. The method of claim 13, further comprising:

comparing the unique identifier against an expected value; and

when the unique identifier does not match the expected value, flagging an error.

17. The method of claim 10, further comprising:

validating a check sequence embedded within the first server beacon; and

when the check sequence is invalid, flagging an error.

18. A wireless device configured to perform one or more tests, the wireless device comprising:

a wireless transceiver configured to transmit and receive wireless signals;

a processor; and

a non-transitory computer readable medium comprising one or more instructions that are configured to, when executed by the processor, cause the wireless device to;

initialize a wireless network;

transmit one or more server signals, the one or more server signals identifying the wireless network;

responsive to reception of a response comprising an embedded message addressed to the wireless network, determine a test that corresponds to the embedded message according to a test script; and

execute the test.

19. The wireless device of claim 18, where the one or more instructions are further configured to, when executed by the processor, cause the wireless device to embed one or more test results within one or more first server signals configured to report the one or more test results

20. The wireless device of claim 18, where the one or more instructions are further configured to, when executed by the processor, cause the wireless device to, responsive to reception of response with an embedded session lock message, lock to a test server.

21. A test server configured to communicate with a wireless device, the test server comprising:

a wireless transceiver configured to transmit and receive wireless signals;

a processor; and

computerized logic in communication with the processor and configured to cause the test server to;

receive a first server signal from the wireless device, the first server signal comprising a unique identifier;

select one or more test procedures based on a test script;

embed a first information element associated with the selected one or more test procedures and the unique identifier within a response; and

transmit the response.