Signaling method

1. A signaling method by a device in a wireless local area network, the method comprising:

including signaling information in an address field;

generating a medium access control (MAC) frame including the address field; and

transmitting a physical layer (PHY) frame including a data field into which the MAC frame is inserted,

wherein the address field further includes a compressed address into which an address of the device or an address of a device destined to receive the MAC frame is compressed.

2. The method of claim 1 , wherein the address field further includes a plurality of compressed addresses into which addresses of a plurality of devices destined to receive the MAC frame are respectively compressed.

3. The method of claim 2 , wherein the signaling information includes information on a number of the compressed addresses.

4. The method of claim 2 , wherein the signaling information includes signaling information dedicated to each of the plurality of devices.

5. The method of claim 1 , wherein all bytes of the address field are assigned to the signaling information, and

wherein the signaling information includes information on basic service set (BSS) to which the device belongs.

6. The method of claim 5 , wherein the information on the BSS includes a BSS color identifier for distinguishing neighboring BSSs.

7. The method of claim 5 , wherein the information on the BSS includes a partial association identifier generated by some bits of an association identifier of the device and an identifier of the BSS.

8. The method of claim 1 , wherein the PHY frame further includes an indication for indicating whether the signaling information is transmitted through the address field.

9. The method of claim 8 , wherein the indication is included in the signaling information.

10. The method of claim 8 , wherein the MAC frame further includes a frame control field, and

wherein the indication is carried by a predefined value of a subtype field in the frame control field.

11. The method of claim 8 , wherein the MAC frame further includes a frame control field, and

wherein the indication is carried by a predefined bit of the frame control field.

12. The method of claim 8 , wherein the indication is carried by a predefined bit of the address field.

13. The method of claim 8 , wherein the MAC frame further includes a duration field, and

wherein the indication is carried by a predefined value of the duration field.

14. The method of claim 8 , wherein the data field includes a service field, and

wherein the indication is carried by a predefined bit of 8 th to 16 th bits in the service field.

15. The method of claim 8 , wherein the data field includes a service field,

wherein an initial 7 bits of the service field corresponds to an initial 7 bits of a scrambling sequence, and

wherein the indication is carried by a predefined bit of the initial 7 bits of the scrambling sequence.

16. The method of claim 15 , wherein the predefined bit includes a 4 th or 5 th bit of the initial 7 bits of the scrambling sequence.

17. A signaling method by a device in a wireless local area network, the method comprising:

receiving a physical layer (PHY) frame;

extracting a medium access control (MAC) frame from a data field of the PHY frame; and

extracting signaling information from an address field of the MAC frame,

wherein the address field further includes a compressed address into which an address of the device or an address of a device transmitting the MAC frame is compressed.

18. The method of claim 17 , wherein all bytes of the address field are assigned to the signaling information, and

wherein the signaling information includes information on a basic service set (BSS) to which the device belongs.