METHOD AND SYSTEM FOR WIRELESS COMMUNICATION USING CHANNEL SELECTION AND BANDWIDTH RESERVATION

• US 20080175199A1
• Filed: 01/15/2008
• Published: 07/24/2008
• Est. Priority Date: 01/19/2007
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Singh, Harkirat, Shao, Huai-Rong, Ngo, Chiu, Qin, Xiangping
• Granted Patent: US 8,699,421 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A method and system for wireless communication involves communicating via a control channel the channel occupation information with a discovered wireless station, based on the occupation information, selecting a wireless data channel for a new transmission with the discovered station and reserving bandwidth for the new transmission on the data channel simultaneous with one or more ongoing transmissions on the data channel.

Claims

1. A method of wireless communication, comprising:

communicating channel occupation information with a discovered wireless station;

based on the occupation information selecting a wireless data channel for a new transmission with the discovered station; and

reserving bandwidth for the new transmission on the data channel simultaneous with one or more ongoing transmissions on the data channel.

2. The method of claim 1 further including the step of initially discovering a wireless station by scanning a control channel to detect beacons from a wireless station.

3. The method of claim 2, wherein communicating channel occupation information includes communicating occupation information over the control channel, wherein the channel occupation information includes channel bandwidth availability information.

4. The method of claim 3, wherein the step of selecting a data channel includes selecting a data channel based on the channel bandwidth information.

5. The method of claim 4, wherein the step of selecting a data channel includes selecting a 60 GHz frequency band communication channel based on the channel bandwidth information.

6. The method of claim 1, wherein the step of reserving bandwidth for the new transmission includes reserving channel time for simultaneous directional transmissions on the data channel involving the new transmission and the ongoing transmissions, while avoiding interference between the new and ongoing transmissions.

7. The method of claim 6, wherein avoiding interference between the new and ongoing transmissions on the data channel includes detecting interference from the ongoing directional transmissions on the new transmission.

8. The method of claim 7, wherein avoiding interference between the new and ongoing directional transmissions on the data channel includes detecting interference from the new transmission on the ongoing transmission.

9. The method of claim 8, wherein the step of reserving bandwidth for the new transmission includes reserving channel time for simultaneous directional new and non-interfering ongoing transmissions on the data channel, such that at least a portion of the new transmission temporally overlaps with one or more non-interfering ongoing transmissions.

10. The method of claim 9, wherein reserving channel time further includes leaving sufficient non-overlapping channel time for dynamically redirecting the new and/or ongoing directional transmissions.

11. A wireless station, comprising:

a communication module configured for communicating channel occupation information with a discovered wireless station and based on the occupation information selecting a wireless data channel for a new transmission with the discovered station; and

a reservation module configured for reserving bandwidth for the new transmission on the data channel simultaneously with one or more ongoing transmissions on the data channel.

12. The wireless station of claim 11, wherein the communication module is further configured for initially discovering a wireless station by scanning a control channel to detect beacons from a wireless station.

13. The wireless station of claim 12, wherein the communication module is further configured for communicating channel occupation information over the control channel, wherein the channel occupation information includes channel bandwidth availability information.

14. The wireless station of claim 13, wherein the communication module is further configured for selecting a data channel based on the channel bandwidth information.

15. The wireless station of claim 14, wherein the communication module is further configured for selecting a 60 GHz frequency band data communication channel based on the channel bandwidth information.

16. The wireless station of claim 11, wherein the reservation module is further configured for reserving channel time for simultaneous directional transmissions on the data channel involving the new transmissions and the ongoing transmissions, while avoiding interference between the new and ongoing transmissions.

17. The wireless station of claim 16, wherein the reservation module is further configured for avoiding interference between the new and ongoing transmissions on the data channel by detecting interference from the ongoing directional transmissions on the new transmission.

18. The wireless station of claim 17, wherein the reservation module is further configured for avoiding interference between the new and ongoing directional transmissions on the data channel by detecting interference from the new transmission on the ongoing transmission.

19. The wireless station of claim 18, wherein the reservation module is further configured for reserving bandwidth for the new transmission by reserving channel time for simultaneous new directional and non-interfering ongoing transmissions on the data channel, such that at least a portion of the new transmission temporally overlaps with one or more non-interfering ongoing transmissions.

20. The wireless station of claim 19, wherein the reservation module is further configured for reserving channel time by leaving sufficient non-overlapping channel time for dynamically redirecting the new and/or ongoing directional transmissions.

21. A method of wireless communication, comprising:

discovering a wireless station via a control channel;

communicating channel occupation information with the discovered wireless station via the control channel; and

based on the occupation information, selecting a 60 GHz wireless data channel for a new directional transmission with the discovered station;

detecting interference from the new transmission on one or more ongoing directional transmissions;

detecting interference from one or more ongoing directional transmissions on the new transmission; and

reserving bandwidth for the new directional transmission on the data channel simultaneously with one or more ongoing directional transmissions on the data channel between other stations, which avoids interference between the new and ongoing transmissions.

22. The method of claim 21, wherein the step of reserving bandwidth for the new transmission includes reserving channel time for simultaneous new directional and non-interfering ongoing transmissions on the data channel, such that at least a portion of the new transmission temporally overlaps with one or more non-interfering ongoing transmissions.

23. The method of claim 22, wherein the step of reserving channel time includes leaving sufficient non-overlapping channel time for dynamically redirecting the new and/or ongoing directional transmissions.

24. The method of claim 21 further includes providing channel occupation information and interference information in beacons.

25. The method of claim 22, wherein no common beacon period is required.