WLAN peer-to-peer group owner negotiation

• US 9,420,631 B2
• Filed: 09/30/2010
• Issued: 08/16/2016
• Est. Priority Date: 10/02/2009
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Wentink, Maarten Menzo, Jones, Vincent K.
• Primary Examiner(s): Patel, Dhairya A
• Application Number:
  US12/894,418
• Publication Number:
  US 20110082905A1
• Time in Patent Office: 2,147 Days
• Field of Search: 709/204, 709/205, 709/206, 709/207, 709/227, 709/228
• US Class Current: 1/1
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements

Abstract

A method of operating a first wireless device includes sending a first message including a first intent to be a group owner and a value to a second wireless device. In addition, the method includes receiving a second message including a second intent to be the group owner from the second wireless device. Furthermore, the method includes determining which of the first wireless device or the second wireless device should be the group owner based on the first intent, the second intent, and the value.

Claims

1. A method of operating a first wireless device, comprising:

sending a first message to a second wireless device, the first message including a first variable value corresponding to a first intent to be a group owner, and a tie breaker value that is separate from the first variable value;

receiving a second message from the second wireless device, the second message including a second variable value corresponding to a second intent to be the group owner and a second value based on the tie breaker value, wherein the tie breaker value and the second value are each a bit, the second value is toggled from the tie breaker value such that the second value is 1 when the tie breaker value is 0 and the second value is 0 when the tie breaker value is 1; and

determining which of the first wireless device or the second wireless device should be the group owner based on the first variable value and the second variable value, and wherein, when the first variable value is equal to the second variable value, the determining is further based on which of the second value or the tie breaker value is a 1.

2. The method of claim 1, wherein the tie breaker value is used to determine which of the first wireless device or the second wireless device should be group owner when the first variable value and the second variable value both indicate a lack of necessity of being the group owner.

3. The method of claim 1, wherein the first message is a group owner negotiation request and the second message is group owner negotiation response.

4. The method of claim 1, wherein the tie breaker value is a bit and the method further comprises setting the tie breaker value to 0 or 1 evenly on average.

5. The method of claim 1, wherein determining which of the first wireless device or the second wireless device should be the group owner comprises:

determining that the first wireless device is the group owner when the first variable value is greater than the second variable value;

determining that the second wireless device is the group owner when the second variable value is greater than the first variable value;

determining that neither the first wireless device nor the second wireless device should be the group owner when the first variable value and the second variable value are equal and both indicate a necessity to be the group owner;

determining that the first wireless device should be the group owner when the first variable value and the second variable value are equal and the tie breaker value indicates the first wireless device should be the group owner; and

determining that the second wireless device should be the group owner when the first variable value and the second variable value are equal and the second value indicates the second wireless device should be the group owner.

6. A wireless device for wireless communication, comprising:

a memory; and

a processor, communicably coupled to the memory, configured to;

send a first message to a second wireless device, the first message including a first variable value corresponding to a first intent to be a group owner, and a tie breaker value that is separate from the first variable value;

receive a second message from the second wireless device, the second message including a second variable value corresponding to a second intent to be the group owner and a second value based on the tie breaker value, wherein the tie breaker value and the second value are each a bit, the second value is toggled from the tie breaker value such that the second value is 1 when the tie breaker value is 0 and the second value is 0 when the tie breaker value is 1; and

determine which of the wireless device or the second wireless device should be the group owner based on the first variable value and the second variable value, and wherein, when the first variable value is equal to the second variable value, the determining is further based on which of the second value or the tie breaker value is a 1.

7. The wireless device of claim 6, wherein the tie breaker value is used to determine which of the wireless device or the second wireless device should be group owner when the first variable value and the second variable value both indicate a lack of necessity of being the group owner.

8. The wireless device of claim 6, wherein the first message is a group owner negotiation request and the second message is group owner negotiation response.

9. The wireless device of claim 6, wherein the tie breaker value is a bit and the apparatus further comprises setting the tie breaker value to 0 or 1 evenly on average.

10. The wireless device of claim 6, wherein the determining which of the apparatus or the second apparatus should be the group owner comprises:

determining that the wireless device is the group owner when the first variable value is greater than the second variable value;

determining that the second wireless device is the group owner when the second variable value is greater than the first variable value;

determining that neither the wireless device nor the second wireless device should be the group owner when the first variable value and the second variable value are equal and both indicate a necessity to be the group owner;

determining that the wireless device should be the group owner when the first variable value and the second variable value are equal and the tie breaker value indicates the wireless device should be the group owner; and

determining that the second wireless device should be the group owner when the first variable value and the second variable value are equal and the second value indicates the second wireless device should be the group owner.

11. A non-transitory computer-readable medium of a first wireless device storing computer executable code, comprising code to:

send a first message to a second wireless device, the first message including a first variable value corresponding to a first intent to be a group owner, and a tie breaker value that is separate from the first variable value;

receive a second message from the second wireless device, the second message including a second variable value corresponding to a second intent to be the group owner and a second value based on the tie breaker value, wherein the tie breaker value and the second value are each a bit, the second value is toggled from the tie breaker value such that the second value is 1 when the tie breaker value is 0 and the second value is 0 when the tie breaker value is 1; and

determine which of the first wireless device or the second wireless device should be the group owner based on the first variable value and the second variable value, and wherein, when the first variable value is equal to the second variable value, the determining is further based on which of the second value or the tie breaker value is a 1.

12. The non-transitory computer-readable medium of claim 11, wherein the tie breaker value is used to determine which of the first wireless device or the second wireless device should be group owner when the first variable value and the second variable value both indicate a lack of necessity of being the group owner.

13. The non-transitory computer-readable medium of claim 11, wherein the first message is a group owner negotiation request and the second message is group owner negotiation response.

14. The non-transitory computer-readable medium of claim 11, wherein the tie breaker value is a bit and the non-transitory computer-readable medium further comprises code to set the tie breaker value to 0 or 1 evenly on average.

15. The non-transitory computer-readable medium of claim 11, wherein the code to determine which of the first wireless device or the second wireless device should be the group owner comprises code to:

determine that the first wireless device is the group owner when the first variable value is greater than the second variable value;

determine that the second wireless device is the group owner when the second variable value is greater than the first variable value;

determine that neither the first wireless device nor the second wireless device should be the group owner when the first variable value and the second variable value are equal and both indicate a necessity to be the group owner;

determine that the first wireless device should be the group owner when the first variable value and the second variable value are equal and the tie breaker value indicates the first wireless device should be the group owner; and

determine that the second wireless device should be the group owner when the first variable value and the second variable value are equal and the second value indicates the second wireless device should be the group owner.