SETTING TRANSMISSION PARAMETERS IN A SHARED COMMUNICATION MEDIUM

• US 20170086251A1
• Filed: 09/18/2015
• Published: 03/23/2017
• Est. Priority Date: 09/18/2015
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: VALLIAPPAN, Nachiappan, Kadous, Tamer Adel
• Granted Patent: US 9,788,361 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 43/08 Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
• CPC Class Codes: H04L 43/106 using time related information in packets, e.g. by adding timestamps
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 52/0216 using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Techniques for setting transmission parameters in a shared communication medium are disclosed. A communication method in accordance with the present disclosure may include, for example, receiving in accordance with a first RAT a first management frame indicating a first BSSID and a second management frame indicating a second BSSID different from the first BSSID, calculating a timestamp difference between a first management frame timestamp included in the first management frame and a second management frame timestamp included in the second management frame, the first BSSID and the second BSSID to a first grouping associated with a first physical access point based on the timestamp difference, and selecting one or more operating channels or setting one or more parameters of a DTX communication pattern based on the assigning, the DTX communication pattern defining activated periods and deactivated periods of communication.

Claims

1. A communication method, comprising:

receiving in accordance with a first Radio Access Technology (RAT) a first management frame indicating a first Basic Service Set Identifier (BSSID) and a second management frame indicating a second BSSID different from the first BSSID;

calculating a timestamp difference between a first management frame timestamp included in the first management frame and a second management frame timestamp included in the second management frame;

assigning the first BSSID and the second BSSID to a first grouping associated with a first physical access point based on the timestamp difference;

selecting one or more operating channels or setting one or more parameters of a Discontinuous Transmission (DTX) communication pattern based on the assigning, the DTX communication pattern defining activated periods and deactivated periods of communication; and

transmitting on the one or more operating channels in accordance with a second RAT or transmitting in accordance with the DTX communication pattern.

2. The communication method of claim 1, the assigning the first BSSID and the second BSSID to a first grouping associated with a first physical access point based on the timestamp difference comprising:

assigning the first BSSID and the second BSSID to a first grouping associated with a first physical access point in response to a determination that the timestamp difference is below a time threshold.

3. The communication method of claim 1, further comprising:

measuring a receiving time lapse between a first receiving time at which the first management frame is received and a second receiving time at which the second management frame is received;

the assigning the first BSSID and the second BSSID to a first grouping associated with a first physical access point based on the timestamp difference comprising;

assigning the first BSSID and the second BSSID to a first grouping associated with a first physical access point in response to a determination that a difference between the receiving time lapse and the timestamp difference is below a time threshold.

4. The communication method of claim 1, each of the first management frame and the second management frame comprising either a beacon frame, a probe response frame, an association response frame, or a reassociation response frame.

5. The communication method of claim 1, the receiving comprising:

receiving the first management frame and the second management frame from the first physical access point, the first physical access point being a multi-BSS access point.

6. The communication method of claim 1, the setting of the one or more parameters of the DTX communication pattern based on the assigning comprising:

increasing a duty cycle or transmission power of the DTX communication pattern in response to the assigning of the first BSSID and the second BSSID to the first grouping.

7. The communication method of claim 1, the receiving of the first management frame and the second management frame comprising receiving a plurality of management frames, the plurality of management frames including the first management frame and the second management frame, each management frame in the plurality of management frames indicating a corresponding BSSID.

8. The communication method of claim 7, further comprising:

identifying the corresponding BSSID for each of the plurality of management frames; and

pairing each of the plurality of management frames with a partner management frame indicating a different BSSID, the first management frame and the second management frame being included in a first pair of the plurality of management frames.

9. The communication method of claim 8, further comprising analyzing each pair of management frames, each analysis comprising:

calculating a timestamp difference between the pair of management frames;

determining whether the timestamp difference is below a time threshold for each pair of management frames;

in response to a determination that the timestamp difference is below the time threshold, assigning the corresponding BSSID and the different BSSID to a same grouping associated with a same physical access point; and

in response to a determination that the timestamp difference is not below the time threshold, assigning the corresponding BSSID and the different BSSID to different groupings associated with different physical access points.

10. The communication method of claim 9, further comprising:

tabulating a total number of different groupings associated with different physical access points.

11. The communication method of claim 10, the setting of the one or more parameters of the DTX communication pattern comprising:

comparing the total number of different groupings to a groupings threshold;

setting a first duty cycle or a first transmission power of the DTX communication pattern based on a determination that the total number of different groupings exceeds the groupings threshold; and

setting a second duty cycle or a second transmission power of the DTX communication pattern based on a determination that the total number of different groupings does not exceed the groupings threshold.

12. The communication method of claim 11, the first duty cycle being greater than the second duty cycle, and the first transmission power being greater than the second transmission power.

13. A communication apparatus, comprising:

one or more transceivers configured to;

receive in accordance with a first Radio Access Technology (RAT) a first management frame indicating a first Basic Service Set Identifier (BSSID) and a second management frame indicating a second BSSID different from the first BSSID; and

transmit on one or more operating channels in accordance with a second RAT and transmit in accordance with a Discontinuous Transmission (DTX) communication pattern; and

at least one processor; and

at least one memory coupled to the at least one processor, the at least one processor and the at least one memory being configured to;

calculate a timestamp difference between a first management frame timestamp included in the first management frame and a second management frame timestamp included in the second management frame;

assign the first BSSID and the second BSSID to a first grouping associated with a first physical access point in response to the determining; and

select the one or more operating channels or set one or more parameters of the DTX communication pattern based on the assigning, the DTX communication pattern defining activated periods and deactivated periods of communication.

14. The communication apparatus of claim 13, the at least one processor and the at least one memory being further configured to assign the first BSSID and the second BSSID to a first grouping associated with a first physical access point in response to a determination that the timestamp difference is below a time threshold.

15. The communication apparatus of claim 13, the at least one processor and the at least one memory being further configured to:

measure a receiving time lapse between a first receiving time at which the first management frame is received and a second receiving time at which the second management frame is received; and

assign the first BSSID and the second BSSID to a first grouping associated with a first physical access point in response to a determination that a difference between the receiving time lapse and the timestamp difference is below a time threshold.

16. The communication apparatus of claim 13, the at least one processor and the at least one memory being further configured to set the one or more parameters of the DTX communication pattern based on the assigning by:

increasing a duty cycle or transmission power of the DTX communication pattern in response to the assigning of the first BSSID and the second BSSID to the first grouping.

17. The communication apparatus of claim 13, the at least one processor and the at least one memory being further configured to receive a plurality of management frames, the plurality of management frames including the first management frame and the second management frame, each management frame in the plurality of management frames indicating a corresponding BSSID.

18. The communication apparatus of claim 17, the at least one processor and the at least one memory being further configured to:

identify the corresponding BSSID for each of the plurality of management frames; and

pair each of the plurality of management frames with a partner management frame indicating a different BSSID, the first management frame and the second management frame being included in a first pair of the plurality of management frames.

19. The communication apparatus of claim 18, the at least one processor and the at least one memory being further configured to analyze each pair of management frames, each analysis comprising:

calculating a timestamp difference between the pair of management frames;

determining whether the timestamp difference is below a time threshold for each pair of management frames;

in response to a determination that the timestamp difference is below the time threshold, assigning the corresponding BSSID and the different BSSID to a same grouping associated with a same physical access point; and

in response to a determination that the timestamp difference is not below the time threshold, assigning the corresponding BSSID and the different BSSID to different groupings associated with different physical access points.

20. The communication apparatus of claim 19, the at least one processor and the at least one memory being further configured to:

tabulate a total number of different groupings associated with different physical access points.

21. The communication apparatus of claim 20, the at least one processor and the at least one memory being further configured to set the one or more parameters of the DTX communication pattern based on the assigning by:

comparing the total number of different groupings to a groupings threshold;

setting a first duty cycle or a first transmission power of the DTX communication pattern based on a determination that the total number of different groupings exceeds the groupings threshold; and

setting a second duty cycle or a second transmission power of the DTX communication pattern based on a determination that the total number of different groupings does not exceed the groupings threshold.

22. A communication method, comprising:

receiving in accordance with a first Radio Access Technology (RAT) a first management frame indicating a first Basic Service Set Identifier (BSSID) and a second management frame indicating a second BSSID different from the first BSSID;

comparing a first fixed field of the first management frame and a second fixed field of the second management frame;

determining a correspondence between the first fixed field and the second fixed field;

assigning the first BSSID and the second BSSID to a first grouping associated with a first physical access point in response to the determining;

selecting one or more operating channels or setting one or more parameters of a Discontinuous Transmission (DTX) communication pattern based on the assigning, the DTX communication pattern defining activated periods and deactivated periods of communication; and

transmitting on the one or more operating channels in accordance with a second RAT or transmitting in accordance with the DTX communication pattern.

23. The communication method of claim 22, the first fixed field including data indicating a first management frame size of the first management frame, and the second fixed field including data indicating a second management frame size of the second management frame.

24. The communication method of claim 23, the determining of the correspondence comprising determining that the first management frame size is equal to the second management frame size.

25. The communication method of claim 22, the first fixed field including data indicating a first management frame sequence number of the first management frame, and the second fixed field including data indicating a second management frame sequence number of the second management frame.

26. The communication method of claim 25, the determining of the correspondence comprising determining that the first management frame sequence number is subsequent to the second management frame sequence number.

27. A communication method, comprising:

receiving in accordance with a first Radio Access Technology (RAT) a first series of management frames indicating a first Basic Service Set Identifier (BSSID) and a second series of management frames indicating a second BSSID different from the first BSSID;

determining a first series of received signal strength indications (RSSI) corresponding to the first series of management frames and a second series of RSSI corresponding to the second series of management frames;

determining whether a correlation between the first series of RSSI and the second series of RSSI exceeds a correlation threshold;

assigning the first BSSID and the second BSSID to a first grouping associated with a first physical access point in response to the determining;

selecting one or more operating channels or setting one or more parameters of a Discontinuous Transmission (DTX) communication pattern based on the assigning, the DTX communication pattern defining activated periods and deactivated periods of communication; and

transmitting on the one or more operating channels in accordance with a second RAT or transmitting in accordance with the DTX communication pattern.

28. The communication method of claim 27, the determining a correlation comprising determining the correlation between the first series of RSSI and the second series of RSSI over a period of time.

29. The communication method of claim 27, the receiving comprising:

receiving the first series of management frames and the second series of management frames from the first physical access point, the first physical access point being a multi-BSS access point.

30. The communication method of claim 27, the setting of the one or more parameters of the DTX communication pattern based on the assigning comprising:

increasing a duty cycle or transmission power of the DTX communication pattern in response to the assigning of the first BSSID and the second BSSID to the first grouping.