Communications decision methods and apparatus

• US 8,693,336 B2
• Filed: 11/10/2008
• Issued: 04/08/2014
• Est. Priority Date: 11/10/2008
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Li, Junyi, Laroia, Rajiv, Tavildar, Saurabh, Wu, Xinzhou
• Primary Examiner(s): MURPHY, RHONDA L
• Application Number:
  US12/267,923
• Publication Number:
  US 20100120445A1
• Time in Patent Office: 1,975 Days
• Field of Search: None
• US Class Current: 370/236
• CPC Class Codes: H04W 28/24 Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]

Abstract

Methods and apparatus for making communications decisions are described. In some embodiments, a method includes recovering a first quality of service level from a first transmission request signal directed to a second communications device, and making a decision whether or not to transmit traffic data to a third communications device based on the recovered first quality of service level. In other embodiments a method includes recovering a first quality of service level from a first transmission request signal, and making a decision whether or not to transmit a first transmission request response signal in response to a second transmission request signal based on the recovered first quality of service level. In some embodiments, the phase of the transmission request signal is used to communicate the quality of service level. The device transmitting the transmission request signal may also transmit pilots which can be used as phase reference signals.

Claims

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

receiving a first transmission request signal from an access router, said first transmission request signal being a request to transmit traffic data from said access router to a second communications device;

recovering a first quality of service level from the first transmission request signal for requesting transmission of first traffic data directed to the second communications device, wherein said recovering the first quality of service level includes recovering the quality of service level from a phase of the first transmission request signal; and

making a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data.

2. A method of operating a first communications device, comprising:

recovering a first quality of service level from a first transmission request signal for requesting transmission of first traffic data directed to a second communications device; and

making a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data,

wherein the first transmission request signal is a single tone signal.

3. A method of operating a first communications device, comprising:

receiving a pilot signal from an access router;

generating, based on the received pilot signal, a channel estimate of a channel between said access router and said first communications device;

recovering a first quality of service level from a first transmission request signal for requesting transmission of first traffic data directed to a second communications device; and

making a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data

wherein said recovering the first quality of service level includes using the generated channel estimate to interpret a phase of the first transmission request signal, the phase of the first transmission request signal indicating the first quality of service level.

4. The method of claim 3, wherein said making a decision whether or not to transmit includes:

comparing the recovered first quality of service level to a second quality of service level, said second quality of service level corresponding to said second traffic data.

5. The method of claim 4, wherein said making a decision whether or not to transmit the second traffic data includes:

deciding to transmit, when the second quality of service level is higher than the recovered first quality of service level, irrespective of a received power level of the first transmission request signal.

6. The method of claim 4, wherein said making a decision whether or not to transmit includes:

deciding, when the second quality of service level is lower than the recovered first quality of service level, whether or not to transmit based on a received power level of a first transmission request response signal received from said second communications device and based on an interference cost estimate, said interference cost estimate being based on the received power level of the first transmission request response signal.

7. The method of claim 3, further comprising:

making multiple decisions whether or not to transmit the second traffic data in different transmission time slots.

8. A first communications device, comprising:

at least one processor configured to;

receive a first transmission request signal from an access router, said first transmission request signal being a request to transmit data from said access router to a second communications device;

recover a first quality of service level from the first transmission request signal for requesting transmission of first traffic data directed to the second communications device, wherein the at least one processor recovers the first quality of service level from a phase of the first transmission request signal; and

make a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data; and

a memory coupled to the at least one processor.

9. A first communications device, comprising:

at least one processor configured to;

recover a first quality of service level from a first transmission request signal for requesting transmission of first traffic data directed to a second communications device; and

make a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data and

a memory coupled to the at least one processor,

wherein the first transmission request signal is a single tone signal.

10. A first communications device, comprising:

at least one processor configured to;

receive a pilot signal from an access router;

generate, based on the received pilot signal, a channel estimate of a channel between said access router and said first communications device;

recover a first quality of service level from a first transmission request signal for requesting transmission of first traffic data directed to a second communications device; and

make a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data,

wherein the at least one processor recovers the quality of service level at least in part by using the generated channel estimate to interpret a phase of the first transmission request signal, the phase of the first transmission request signal indicating the first quality of service level and

a memory coupled to the at least one processor.

11. The first communications device of claim 10, wherein the at least one processor is further configured to:

compare the recovered first quality of service level to a second quality of service level, said second quality of service corresponding to said second traffic data.

12. A first communications device, comprising:

means for receiving a first transmission request signal from an access router, said first transmission request signal being a request to transmit data from said access router to a second communications device;

means for recovering a first quality of service level from the first transmission request signal for requesting transmission of first traffic data directed to the second communications device, wherein the means for recovering recovers the quality of service level from a phase of the first transmission request signal; and

means for making a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data.

13. A first communications device, comprising:

means for recovering a first quality of service level from a first transmission request signal for requesting transmission of first traffic data directed to a second communications device; and

means for making a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data,

wherein the first transmission request signal is a single tone signal.

14. A first communications device, comprising:

means for receiving a pilot signal from an access router;

means for generating, based on the received pilot signal, a channel estimate of a channel between said access router and said first communications device;

means for recovering a first quality of service level from a first transmission request signal for requesting transmission of first traffic data directed to a second communications device; and

means for making a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data,

wherein said means for recovering recovers the first quality of service level at least in part by using the generated channel estimate to interpret a phase of the first transmission request signal, the phase of the first transmission request signal indicating the first quality of service level.

15. The first communications device of claim 14, further comprising:

means for comparing the recovered first quality of service level to a second quality of service level, said second quality of service corresponding to said second traffic data.

16. A computer program product for use in a first communications device, comprising:

a non-transitory computer readable medium comprising;

code for causing at least one computer to receive a first transmission request signal from an access router, said first transmission request signal being a request to transmit data from said access router to a second communications device;

code for causing the at least one computer to recover a first quality of service level from the first transmission request signal for requesting transmission of first traffic data directed to the second communications device, wherein the code for causing the at least one computer to recover recovers the quality of service level from a phase of the first transmission request signal; and

code for causing the at least one computer to make a decision whether or not to transmit second traffic data to a third communications device based on the recovered first quality of service level, wherein the second traffic data is different from the first traffic data.

17. A method of operating a first communications device, comprising:

receiving a first transmission request signal from an access router, the first transmission request signal for requesting transmission of traffic data;

recovering a first quality of service level from the first transmission request signal; and

making a decision whether or not to transmit a first transmission request response signal to a third communications device in response to a second transmission request signal from the third communications device based on the recovered first quality of service level.

18. The method of claim 17,

wherein said first transmission request signal being a traffic transmission request from said access router to a second communications device.

19. The method of claim 18, wherein the first transmission request signal is a single tone signal.

20. The method of claim 17, further comprising:

receiving a pilot signal from the access router;

generating a channel estimate of a channel between said access router and said first communications device; and

wherein said recovering the first quality of service level includes using the generated channel estimate to interpret a phase of the first transmission request signal, the phase of the received first transmission request signal communicating the first quality of service level.

21. The method of claim 20, further comprising:

making multiple decisions whether or not to transmit a transmission request response in different transmission time slots.

22. The method of claim 17,

wherein said making a decision whether or not to transmit a transmission request response comprises comparing the recovered first quality of service level to a second quality of service level, said second quality of service level corresponding to a connection between said first communications device and the third communications device.

23. The method of claim 22, wherein said making a decision whether or not to transmit further comprises:

deciding to transmit, when the second quality of service level is higher than the recovered first quality of service level.

24. The method of claim 20, wherein said making a decision whether or not to transmit further comprises:

generating a channel quality estimate based on a received power of the second transmission request signal from the third communications device and a received power of the first transmission request signal transmitted from the access router to a second communications device; and

deciding whether or not to transmit, based on the generated channel quality estimate, when the second quality of service level is lower than the recovered first quality of service level.

25. A first communications device, comprising:

at least one processor configured to;

receive a first transmission request signal from an access router, the first transmission request signal for requesting transmission of traffic data;

recover a first quality of service level from the first transmission request signal; and

make a decision whether or not to transmit a first transmission request response signal to a third communications device in response to a second transmission request signal from the third communications device, based on the recovered first quality of service level; and

a memory coupled to the at least one processor.

26. The first communications device of claim 25,

wherein said first transmission request signal being a traffic transmission request from said access router to a second communications device.

27. The first communications device of claim 26, wherein the first transmission request signal is a single tone signal.

28. The first communications device of claim 25, wherein said at least one processor is further configured to:

receive a pilot signal from the access router;

generate a channel estimate of a channel between said access router and said first communications device; and

use the generated channel estimate to interpret a phase of the first transmission request signal, the phase of the received first transmission request signal communicating the first quality of service level.

29. The first communications device of claim 28, wherein the at least one processor is further configured to:

compare the recovered first quality of service level to a second quality of service level, said second quality of service level corresponding to a connection between the third communications device and said first communications device.

30. A first communications device, comprising:

means for receiving a first transmission request signal from an access router, the first transmission request signal for requesting transmission of traffic data;

means for recovering a first quality of service level from the first transmission request signal; and

means for making a decision whether or not to transmit a first transmission request response signal to a third communications device in response to a second transmission request signal from the third communications device based on the recovered first quality of service level.

31. The first communications device of claim 30,

wherein said first transmission request signal being a traffic transmission request from said access router to a second communications device.

32. The first communications device of claim 31, wherein the first transmission request signal is a single tone signal.

33. The first communications device of claim 30, further comprising:

means for receiving a pilot signal from the access router;

means for generating a channel estimate of a channel between said access router and said first communications device; and

wherein said means for recovering recovers the first quality of service level at least in part by using the generated channel estimate to interpret a phase of the first transmission request signal, the phase of the received first transmission request signal communicating the first quality of service level.

34. The first communications device of claim 30, further comprising:

means for comparing the recovered first quality of service level to a second quality of service level, said second quality of service level corresponding to a connection between the third communications device and said first communications device.

35. A computer program product for use in a first communications device, comprising:

a non-transitory computer readable medium comprising;

code for causing at least one computer to receive a first transmission request signal from an access router, the first transmission request signal for requesting transmission of traffic data;

code for causing the at least one computer to recover a first quality of service level from the first transmission request signal; and

code for causing the at least one computer to make a decision whether or not to transmit a first transmission request response signal to a third communications device in response to a second transmission request signal from the third communications device based on the recovered first quality of service level.

36. The computer program product of claim 35,

wherein said first transmission request signal being a traffic transmission request from said access router to a second communications device.