Method and device for identifying basic service set

1. A method for communicating in a wireless local area network, the method comprising:

receiving, at a station, communication from a first access point (AP) to which the station is associated, the communication including a first color value and a color indication, the first color value identifying at least one basic service set (BSS) managed by the first AP, the color indication having a value;

receiving, at the station, a physical layer protocol data unit (PPDU), the PPDU including a second color value, the second color value found within a partial association identifier (AID) of the PPDU when the color indication has a first value;

comparing the first color value and the second color value to determine whether or not the received PPDU is from the first AP; and

wherein, when the first color value does not match the second color value, then the station determines that the PPDU was received from a second AP.

2. The method of claim 1 further comprising adjusting a Clear Channel Assessment (CCA) sensitivity level.

3. The method of claim 1 wherein the PPDU includes a signal field, the signal field including a partial AID identifying its sending station, the partial AID including the second color value when the color indication has the first value.

4. The method of claim 1 wherein the second color value is included in most significant bits (MSBs) of the partial AID.

5. The method of claim 1 wherein when the color indication has a second value, the PPDU does not include a partial AID.

6. The method of claim 1 wherein the communication from the first AP further includes at least one basic service set identifier (BSSID) uniquely identifying a BSS managed by the first AP; wherein the BSSID is represented by 48 bits; and the first color value is represented by a value number of bits, the value number less than 48.

7. The method of claim 1 wherein the color indication is set to the first value to indicate that the second color value appears in the partial AID and is set to a second value to indicate that the second color value does not appear in the partial AID.

8. A device configured for communicating in a wireless local area network, the device comprising:

a radio frequency module configured to receive radio signals;

a processor operatively coupled with the radio frequency module; and

memory disposed to said processor, said memory including instructions that, when executed by said processor, causes the processor to:

process communication from a first access point (AP) to which the device is associated, the communication including a first color value and a color indication, the first color value identifying at least one basic service set (BSS) managed by the first AP, and the color indication having a value;

process a physical layer protocol data unit (PPDU), received via the radio frequency module, the PPDU including a second color value, the second color value found within a partial association identifier (AID) of the PPDU when the color indication is set to a first value;

compare the first color value and the second color value to determine whether or not the received PPDU is from the first AP; and

wherein, when the first color value does not match the second color value, then the station determines that the PPDU was received from a second AP.

9. The device recited in claim 8 wherein the processor is further configured to adjust a Clear Channel Assessment (CCA) sensitivity level.

10. The device recited in claim 8 wherein the PPDU includes a signal field, the signal field including a partial AID identifying its sending station, the partial AID including the second color value when the color indication has the first value.

11. The device recited in claim 8 wherein the second color value is included as most significant bits (MSBs) of the partial AID.

12. The device recited in claim 8 wherein when the color indication has a second value, the PPDU does not include a partial AID.

13. The device recited in claim 8 wherein the communication from the AP further includes at least one basic service set identifier (BSSID) uniquely identifying a BSS managed by the AP; wherein the BSSID is represented by 48 bits; and the first color value is represented by a value number of bits, the value number less than 48.

14. The device recited in claim 8 wherein the color indication is set to the first value to indicate that the second color value appears in the partial AID and is set to a second value to indicate that the second color value does not appears in the partial AID.