Method and apparatus for activating frequencies in white space

• US 9,544,779 B2
• Filed: 03/26/2012
• Issued: 01/10/2017
• Est. Priority Date: 03/26/2012
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Rinne, Mika Petri Olavi, Uusitalo, Mikko Aleksi, Kasslin, Mika Ilkka Tapani
• Primary Examiner(s): Elallam, Ahmed
• Application Number:
  US14/385,417
• Publication Number:
  US 20150043471A1
• Time in Patent Office: 1,751 Days
• US Class Current: 1/1
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks

Abstract

A method for acquiring spectrum beyond the licensed spectrum for wireless network communications comprising accessing a geolocation database to determine a configuration of white space frequencies that may be available and transmitting the carrier aggregation configuration to user equipment (UE). The carrier aggregation configuration may be at least partially encrypted with the key sequences for the encryption being optionally changed for improved security. The white spaces may be activated in a handshake sequence in which a network node transmits an enabling signal to UE, receives an enabling request from UE specifying which white spaces are requested, and transmits an enabling response. In an alternative to transmitting an enabling response, the node may activate the requested white spaces in an LTE signal.

Claims

1. A method comprising:

acquiring, by a wireless network entity, spectral resources beyond a licensed spectrum for wireless network communications, from an available spectrum, the spectral resources including available white space frequencies;

identifying, by the wireless network entity, a carrier aggregation configuration of at least a portion of the available white space frequencies, using network signaling in the licensed spectrum; and

receiving, at the wireless network entity, an indication of one or more of the available white space frequencies which a user equipment requests to be activated for communication according to the carrier aggregation configuration.

2. The method of claim 1 further comprising:

enabling white space communications using an interactive handshake sequence.

3. The method of claim 2 further comprising:

causing an enabling signal to be transmitted from the wireless network entity to the user equipment, the enabling signal indicating the availability of one or more white spaces for wireless network communications.

4. The method of claim 3, wherein the indication is received in an enabling request from the user equipment.

5. The method of claim 4 further comprising:

causing an enabling response to be transmitted for at least a white spaces frequency component to be activated in response to the enabling request.

6. The method of claim 4 further comprising:

activating the requested white space frequencies by causing a medium access control protocol control element to be transmitted identifying a frequency list to be activated.

7. The method of claim 4 further comprising:

activating the requested white space frequencies via a radio resource control message.

8. The method of claim 1 further comprising:

causing the carrier aggregation configuration of available white space frequencies to be signaled in a radio resource control message.

9. The method of claim 8 further comprising:

causing an enabling sequence to be signaled with the carrier aggregation configuration message.

10. The method of claim 9 further comprising:

changing key sequences used to encode the enabling signal sequences to create a trail of sequences.

11. An apparatus comprising:

at least a processor and at least one memory including computer code arranged to, with the processor, cause the apparatus at least to;

acquire spectral resources beyond a licensed spectrum for wireless network communications, from an available spectrum, the spectral resources including available white space frequencies;

identify a carrier aggregation configuration of at least a portion of the available white space frequencies, using network signaling within the licensed spectrum; and

receive an indication of one or more of the available white space frequencies which a user equipment requests to be activated for communication according to the carrier aggregation configuration.

12. The apparatus of claim 11 wherein the processor, memory and computer code further cause the apparatus to:

enable white space communications using an interactive handshake sequence.

13. The apparatus of claim 12 wherein the processor, memory and computer code further cause the apparatus to:

cause an enabling signal to be transmitted to the user equipment, the enabling signal indicating the availability of one or more white spaces for wireless network communications.

14. The apparatus of claim 13 wherein the indication is received in an enabling request from the user equipment.

15. The apparatus of claim 14 wherein the processor, memory and computer code further cause the apparatus to:

cause an enabling response to be transmitted for at least one white spaces frequency to be activated in response to the enabling request.

16. The apparatus of claim 14 wherein the processor, memory and computer code further cause the apparatus to:

activate the requested white space frequencies by causing a medium access control protocol control element signal to be transmitted identifying a frequency list to be activated.

17. The apparatus of claim 14 wherein the processor, memory and computer code further cause the apparatus to:

activate the requested white space frequencies via a radio resource control message.

18. The apparatus of claim 11 wherein the processor, memory and computer code further cause the apparatus to:

cause the carrier aggregation configuration of available white space frequencies to be signaled in a radio resource control message.

19. The apparatus of claim 18 wherein the processor, memory and computer code further cause the apparatus to:

cause a network entity to signal a description of at least an enabling sequence with the carrier aggregation configuration message.

20. The apparatus of claim 19 wherein the processor, memory and computer code further cause the apparatus to:

change key sequences used to encode the enabling sequences to create a trail of sequences.

21. An apparatus comprising:

at least a processor and at least one memory including computer code arranged to, with the processor, cause the apparatus at least to;

cause a carrier aggregation configuration of available white space frequencies to be received by network signaling within the licensed spectrum;

cause an enabling signal to be received from a wireless network entity, the enabling signal indicating the availability of one or more white spaces for wireless network communications according to the carrier aggregation configuration; and

cause an enabling request to be transmitted to the wireless network entity, the enabling request requesting at least a portion of the one or more available white spaces be activated.

22. The apparatus of claim 21 wherein the processor, memory and computer code further cause the apparatus to at least:

receive the enabling signal via at least one of the one or more available white spaces.

23. The apparatus of claim 21 wherein the processor, memory and computer code further cause the apparatus to at least:

cause an enabling response to be received for at least one white spaces frequency to be activated in response to the enabling request.

24. The apparatus of claim 21 wherein the processor, memory and computer code further cause the apparatus to at least:

receive a medium access control protocol control element signal identifying a white spaces frequency list to be activated in response to the enabling request.