Method and system for self-enabling portable television band devices

• US 8,817,701 B2
• Filed: 06/22/2010
• Issued: 08/26/2014
• Est. Priority Date: 06/22/2010
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Singh, Harkirat, Yong, Su Khiong, Hsu, Ju-Lau, Ngo, Chin
• Primary Examiner(s): Rinehart, Mark
• Assistant Examiner(s): Crompton, Christopher R
• Application Number:
  US12/821,032
• Publication Number:
  US 20110310253A1
• Time in Patent Office: 1,526 Days
• Field of Search: 370/328
• US Class Current: 370/328
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Embodiments of the invention provide a method and system for determining wireless channel interference in a television (TV) band white space spectrum. Upon sensing a signal on a wireless channel from a wireless white space device that transmits a unique device identifier, interference by the wireless white space device on the wireless channel is determined. A report of the channel interference by the wireless white space device is generated and may be utilized to cease the interference.

Claims

1. A method for determining wireless channel interference in a white space spectrum, comprising:

sensing a signal on a wireless channel from a wireless white space device, wherein the signal comprises a hash function computed for a signature of the wireless white space device including a unique device identifier;

determining interference by the wireless white space device on the wireless channel based on the signal; and

generating a report of the channel interference by the wireless white space device, wherein the signature comprises a combination of geolocation information and system identifiers, wherein the geolocation information comprises geolocation authentication information.

2. The method of claim 1, wherein:

the white space spectrum comprises television band white space spectrum (TVWS); and

the wireless white space device comprises a TVWS personal/portable white space device.

3. The method of claim 2, wherein:

generating a report of the channel interference by the wireless white space device further comprises generating a report of the channel interference including the unique device identifier.

4. The method of claim 3, wherein:

generating a report of the channel interference further comprises informing the interfering wireless white space device of the interference, by contacting the interfering personal/portable white space device in-band on an operating channel or on layers above a data link layer in the Transmission Control Protocol/Internet Protocol (TCP/IP) model for layered communications and computer network protocol.

5. The method of claim 3, wherein:

generating a report of the channel interference further comprises informing an authority to inform the interfering wireless white space device to get off the wireless channel.

6. The method of claim 4, wherein:

the wireless white space device employs a module for geolocation database access and spectrum sensing.

7. The method of claim 6, further comprising:

transmitting information including the unique device identifier on a wireless channel by the wireless white space device;

wherein the unique device identifier comprises a combination of identifiers from multiple communication layers, and the geolocation information comprises authentication data obtained from a geolocation database.

8. The method of claim 7, wherein:

the wireless channel is a restricted channel, an occupied channel, or a restricted and an occupied channel; and

the wireless white space device periodically, or on-demand, transmits said device identifier uniquely identifying the wireless white space device.

9. The method of claim 7, further comprising:

periodically transmitting the unique device identifier by the wireless white space device based on information from the geolocation database, when the wireless white space device determines that its physical location has changed;

wherein the unique device identifier comprises a combination of three or more of the fields;

geolocation information, Internet Protocol (IP) address, default gateway (GW) address and basic service set identifier.

10. The method of claim 9, wherein:

one or more fields of the device identifier are transmitted on one or more of;

IP-layer, Transport layer, Application layer of the wireless white space device.

11. The method of claim 1, wherein:

the unique device identifier is transmitted multiple times on narrowband in the wireless channel.

12. The method of claim 1, further comprising:

after claiming a channel during a channel claiming period, the wireless white space device registering its device identifier with a fixed wireless white space device or other authorized entity; and

computing a hash value of fixed length bits over the device identifier and the wireless white space device transmitting the hash value instead of transmitting the full device identifier, wherein the wireless white space device is capable of self-enablement (Mode-II).

13. The method of claim 12, further comprising:

transmitting a tuple including said hash value, the device identifier of said fixed wireless white space device or authorized entity as;

{hash, device identifier, fixed wireless white space device or authorized entity id} by the wireless white space device capable of self-enablement (Mode-II).

14. The method of claim 13, further comprising:

the wireless white space device independently computing the hash value based on an agreed upon hashing function.

15. The method of claim 12 further comprising:

transmitting a device identifier periodically or on-demand by a personal/portable wireless white space device (Mode-I) enabled by a personal/portable wireless white space device capable of self-enablement (Mode-II) or by a fixed wireless white space device.

16. The method of claim 15, further comprising:

a personal/portable wireless white space device (Mode-I) that is incapable of populating geolocation and other higher layer fields in its device identifier, populating said fields using corresponding information from the device identifier of its enabling wireless white space device.

17. The method of claim 1, wherein the signature comprises a combination of geolocation information and system identifiers including identifiers from three or more communication layers comprising a link layer, a network/Internet layer, a transport layer and an application layer.

18. The method of claim 17, wherein the combination of system identifiers comprises three or more of a media access control (MAC) address, wireless channel number, service set identifier, default domain name system (DNS), subnet mask and Internet Protocol (IP), default gateway and port number.

19. The method of claim 1, wherein the system identifiers include one or more of a basic service set identifier (BSSID) and SSID of the wireless white space device.

20. The method of claim 1, wherein the geolocation authentication information comprises geolocation authentication code.

21. A wireless white space device, comprising:

a communication module configured for transmitting a unique device identifier on a wireless channel for uniquely identifying the white space device upon channel interference by the white space device in a white space spectrum; and

a geolocation module configured for accessing a geolocation database,

wherein the wireless white space device comprises a personal/portable white space device capable of self-enablement, that transmits a hash computed on a signature of the white space device and the unique device identifier, and accesses the geolocation database without using any other white space device, wherein the signature comprises a combination of geolocation information and system identifiers, wherein the geolocation information comprises geolocation authentication information.

22. The wireless white space device of claim 21, wherein:

the unique device identifier comprises a combination of identifiers from multiple communication layers and geolocation data.

23. The wireless white space device of claim 22, wherein:

the white space spectrum comprises television band white space spectrum (TVWS); and

the wireless white space device comprises a TVWS personal/portable white space device.

24. The wireless white space device of claim 23, wherein:

the wireless white space device employs self-access of the geolocation database and spectrum sensing.

25. The wireless white space device of claim 24, wherein:

the wireless channel is a restricted and/or occupied channel; and

the wireless white space device is configured for periodically, or on-demand, transmitting said unique device identifier identifying the wireless white space device.

26. The wireless white space device of claim 24, wherein:

the communication module is configured for periodically transmitting the unique device identifier based on information from the geolocation database, when the geolocation module determines that physical location has changed; and

the unique device identifier comprises a combination of three or more of fields;

geolocation information, Internet Protocol (IP) address, default gateway (GW) address and basic service set identifier.

27. The wireless white space device of claim 26, wherein:

one or more fields of the device identifier are transmitted on one or more of;

IP-layer, Transport layer, Application layer of the wireless white space device.

28. The wireless white space device of claim 21, wherein:

the device identifier is transmitted multiple times on narrowband in the channel.

29. The wireless white space device of claim 21, wherein:

after claiming a channel during a channel claiming period, the wireless white space device capable of self-enablement (Mode-II) registers its device identifier with a fixed wireless white space device or other authorized entity, and computes a hash value of fixed length bits over the device identifier and transmits the hash value instead of transmitting the full device identifier.

30. The wireless white space device of claim 29, wherein:

the wireless white space device capable of self-enablement (Mode-II) transmits a tuple including said hash value, the device identifier of said fixed wireless white space device or authorized entity as;

{hash, device identifier, fixed wireless white space device or authorized entity id}.

31. The wireless white space device of claim 30, wherein:

the wireless white space device independently computes a hash value based on an agreed upon hashing function.

32. A wireless communication system, comprising:

a personal/portable wireless white space device, comprising a communication module configured for transmitting a unique device identifier on a wireless channel for uniquely identifying the white space device upon channel interference by the white space device in a white space spectrum, and a geolocation module configured for accessing a geolocation database, wherein the personal/portable white space device is capable of self-enablement, transmiting a hash over a signature of the white space device and the unique device identifier, and accessing the geolocation database without using any other white space device; and

a wireless device configured for sensing a signal on a wireless channel from a personal/portable wireless white space device that transmits a unique device identifier, and upon determining interference by the personal/portable wireless white space device on the wireless channel, generating a report of the channel interference by the personal/portable wireless white space device,

wherein the signature comprises a combination of geolocation information and system identifiers, wherein the geolocation information comprises geolocation authentication information.

33. The system of claim 32, wherein:

the unique device identifier comprises a combination of identifiers from multiple communication layers and geolocation data.

34. The system of claim 33, wherein:

the white space spectrum comprises television band white space spectrum (TVWS);

the personal/portable wireless white space device comprises a TVWS personal/portable white space device;

the personal/portable wireless white space device employs self-access of the geolocation database and spectrum sensing; and

the geolocation information comprises geolocation authentication data.

35. The system of claim 34, wherein:

the wireless channel is a restricted and/or occupied channel; and

the personal/portable wireless white space device is configured for periodically, or on-demand, transmitting said device identifier uniquely identifying the wireless white space device.

36. The system of claim 35, wherein:

the communication module is configured for periodically transmitting the unique device identifier when based on information from the geolocation database, the geolocation module determines that physical location has changed; and

the unique device identifier comprises a combination of three or more of;

geolocation information, Internet Protocol (IP) address, default gateway (GW) address and basic service set identifier.

37. The system of claim 36, wherein:

one or more fields of the device identifier are transmitted on one or more of;

IP-layer, Transport layer, Application layer of the personal/portable wireless white space device.

38. The system of claim 36, wherein:

the device identifier is transmitted multiple times on narrowband in the wireless channel.

39. The system of claim 36, wherein:

after claiming a channel during a channel claiming period, the personal/portable wireless white space device capable of self-enablement (Mode-II) registers its device identifier with a fixed wireless white space device or other authorized entity, and computes a hash value of fixed length bits over the device identifier and transmits the hash value instead of transmitting the full device identifier.

40. The system of claim 39, wherein:

the wireless white space device capable of self-enablement (Mode-II) transmits a tuple including said hash value, the device identifier of said fixed wireless white space device or authorized entity as;

{hash, device identifier, fixed wireless white space device or authorized entity id}.

41. The system of claim 40, wherein:

the wireless white space device independently computes a hash value based on an agreed upon hashing function.

42. The system of claim 36, wherein:

the wireless device comprises a white space wireless device further configured for generating a report of the channel interference by informing the interfering personal/portable wireless white space device of the interference, by contacting the interfering personal/portable white space device in-band on an operating channel or on layers above a data link layer in the Transmission Control Protocol/Internet Protocol (TCP/IP) model for layered communications and computer network protocol.

43. A method for determining wireless channel interference in a white space spectrum, comprising:

sensing a signal on a wireless channel from a wireless white space device, wherein the signal comprises a unique device identifier;

determining interference by the wireless white space device on the wireless channel based on the signal;

generating a report of the channel interference by the wireless white space device; and

computing a hash value on a signature of the wireless white space device that includes the unique device identifier independently by the wireless white space device based on an agreed upon hashing function, wherein the signature comprises a combination of geolocation information and system identifiers, wherein the geolocation information comprises geolocation authentication information.

44. The method of claim 43, further comprising:

the wireless white space device capable of self-enablement (Mode-II) transmitting a tuple including said hash value.