Method of determining channel to be used in wireless network, wireless communication method, and apparatus for the same

• US 20080051097A1
• Filed: 04/06/2007
• Published: 02/28/2008
• Est. Priority Date: 07/14/2006
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kwon, Chang-yeul
• Granted Patent: US 7,899,460 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal

Abstract

There is provided a wireless communication method, the method including selecting first and second channels that apply different data transmission capabilities, respectively, and transmitting and receiving data using the selected first and second channels.

Claims

1. A wireless communication method comprising:

selecting first and second channels that apply different data transmission capabilities, respectively; and

transmitting and receiving data using the selected first and second channels.

2. The method of claim 1, wherein the data transmission capabilities are data transmission rates.

3. The method of claim 1, wherein the selecting of the first and second channels comprises:

selecting a first channel from a plurality of first channels; and

selecting a second channel which corresponds to the selected first channel among a plurality of second channels.

4. The method of claim 3, wherein a number of the plurality of second channels is three or more.

5. The method of claim 3, wherein a frequency band of the selected first channel comprises respective frequency bands of the plurality of second channels.

6. The method of claim 3, wherein the selecting of the first channel comprises:

performing an energy detecting operation according to a signal receiving sensitivity with respect to at least one first channel among the plurality of first channels; and

selecting the first channel having a smallest energy detection result value.

7. The method of claim 6, wherein the performing of the energy detecting operation comprises:

performing an energy detecting operation according to a signal receiving sensitivity with respect to all applicable second channels; and

performing an energy detecting operation on at least one first channel among the plurality of first channels, in which an energy detection result value of a corresponding second channel is smaller than a certain threshold value.

8. The method of claim 7, wherein the energy detecting operation on all of the applicable second channels is performed on each of the applicable second channels for a certain time.

9. The method of claim 8, wherein the certain time is longer than a super frame that indicates a communication timing schedule in the wireless network.

10. The method of claim 3, wherein an energy detection result value according to the signal receiving sensitivity in the selected first channel is smaller than a certain threshold value.

11. The method of claim 3, wherein the selected second channel has a smallest energy detection result value according to a signal receiving sensitivity among the plurality of second channels.

36. A storage medium in which a program readable by a computer that allows the computer to execute the method of claim 1 is recorded.

12. A method of determining a channel to be used in a wireless network, the method comprising:

scanning a plurality of channels; and

selecting a plurality of channels that apply different data transmission capabilities according to the scanning result.

13. The method of claim 12, wherein the data transmission capabilities are data transmission rates.

14. The method of claim 12, wherein:

the plurality of channels comprises a plurality of first channels and a plurality of second channels; and

each of the plurality of first channels corresponds to at least one of the plurality of second channels.

15. The method of claim 14, wherein a frequency band of each of the plurality of first channels comprises a frequency band of a corresponding second channel among the plurality of second channels.

16. The method of claim 14, wherein the scanning of the plurality of channels comprises:

performing an energy detecting operation according to a signal receiving sensitivity with respect to the plurality of second channels; and

performing an energy detecting operation according to a signal receiving sensitivity with respect to at least one first channel among the plurality of first channels.

17. The method of claim 16, wherein the performing of the energy detecting operation according to a signal receiving sensitivity with respect to at least one first channel among the plurality of first channels comprises performing an energy detecting operation on at least one first channel among the plurality of first channels, in which an energy detection result value of a corresponding second channel is smaller than a certain threshold value.

18. The method of claim 16, wherein the selecting of the plurality of channels comprises:

selecting a first channel having a smallest energy detection result value among the plurality of first channels; and

selecting a second channel having a smallest energy detection result value among the second channels which corresponds to the selected first channel.

19. The method of claim 18, wherein the energy detection result value of the selected first channel is smaller than a certain threshold value.

20. The method of claim 16, wherein the energy detecting operation on the plurality of second channels is performed on each of the plurality of second channels for a certain time.

21. The method of claim 20, wherein the certain time is longer than a super frame that indicates a communication timing schedule in the wireless network.

37. A storage medium in which a program readable by a computer that allows the computer to execute the method of claim 12 is recorded.

22. A wireless communication apparatus, the apparatus comprising:

a transceiver scanning a plurality of channels; and

a MAC processing unit selecting a plurality of channels that apply different data transmission capabilities according to the scanning result.

23. The apparatus of claim 22, wherein the data transmission capabilities are data transmission rates.

24. The apparatus of claim 22, wherein:

the plurality of channels comprises a plurality of first channels and a plurality of second channels; and

each of the plurality of first channels corresponds to at least one of the plurality of second channels.

25. The apparatus of claim 24, wherein a frequency band of each of the plurality of first channels comprises a frequency band of a corresponding second channel among the plurality of second channels.

26. The apparatus of claim 24, wherein the transceiver comprises:

a first physical processing unit performing an energy detecting operation according to a signal receiving sensitivity with respect to the plurality of second channels; and

a second physical processing unit performing an energy detecting operation according to a signal receiving sensitivity with respect to at least one first channel among the plurality of first channels.

27. The apparatus of claim 26, wherein the second physical processing unit performs an energy detecting operation on at least one first channel among the plurality of first channels, in which an energy detection result value of a corresponding second channel is smaller than a certain threshold value.

28. The apparatus of claim 26, wherein the MAC processing unit selects a first channel having a smallest energy detection result value among the plurality of first channels, and selects a second channel having a smallest energy detection result value among the second channels which corresponds to the selected first channel.

29. The apparatus of claim 28, wherein the energy detection result value of the selected first channel is smaller than a certain threshold value.

30. The apparatus of claim 26, wherein the energy detecting operation on the plurality of second channels is performed on each of the plurality of second channels for a certain time.

31. The apparatus of claim 30, wherein the certain time is longer than a super frame that indicates a communication timing schedule in the wireless network.

32. The apparatus of claim 22, wherein the MAC processing unit generates a beacon,

wherein the beacon drives a wireless network that uses the plurality of selected channels.

33. The apparatus of claim 32, wherein the beacon comprises information about communication timing in the wireless network.

34. The apparatus of claim 32, wherein the transceiver transmits the generated beacon through any one of the plurality of selected channels.

35. The apparatus of claim 22, further comprising:

a transceiver which transmits and receives data using the plurality of selected channels.