LTE carrier aggregation configuration on TV white space bands

1. An apparatus, comprising:

a communication interface configured to

communicate with a base station via a primary cell on a frequency band related to a cellular network using an uplink and downlink configuration specific to the primary cell; and

receive, on a downlink carrier on the primary cell, information identifying a carrier on a secondary cell on a frequency band related to an unlicensed channel and an instruction to measure radio interference on the carrier on the secondary cell; and

circuitry configured to measure radio interference on the carrier on the secondary cell based on the information identifying the carrier on the secondary cell and the instruction to measure radio interference on the carrier on the secondary cell, wherein

the communication interface is configured to report results of the radio interference measurement to the base station via an uplink carrier on the primary cell, and

the communication interface is configured to communicate with the base station via the secondary cell on the frequency band related to the unlicensed channel based on the results of the radio interference measurement.

2. The apparatus of claim 1 , wherein the carrier on the secondary cell is an uplink carrier temporarily set by the base station providing the primary cell.

3. The apparatus of claim 2 , wherein the information identifying the temporarily set uplink carrier on the secondary cell is received on a dedicated downlink carrier of the primary cell.

4. The apparatus of claim 1 , wherein the uplink and downlink configuration specific to the primary cell is represented by separate carriers on the primary cell for uplink and downlink.

5. The apparatus of claim 1 , wherein the communication interface is configured to communicate in the frequency band related to the unlicensed channel using an uplink and downlink configuration specific to the frequency band related to the unlicensed channel.

6. The apparatus of claim 5 , wherein the uplink and downlink configuration specific to the frequency hand related to the unlicensed channel is represented by separate carriers on the secondary cell for uplink and downlink.

7. The apparatus of claim 1 , wherein the temporarily set uplink carrier on the secondary cell is a dedicated uplink carrier.

8. The apparatus of claim 1 , wherein the circuitry is configured to detect all available unlicensed channels.

9. The apparatus of claim 8 , wherein the circuitry is configured to repeat measurement for each of the available unlicensed channels.

10. The apparatus of claim 1 , wherein the circuitry is configured to control frequency domain duplexing based communication in the primary cell.

11. The apparatus of claim 1 , wherein the communication interface is configured to receive information about setting non-temporary carriers for uplink and downlink on the secondary cell in the frequency band related to the unlicensed channel in response to reporting the results of the radio interference measurement.

12. The apparatus of claim 11 , wherein the circuitry is configured to control communication in the secondary cell by setting the non-temporary carriers on the secondary cell for uplink and downlink.

13. The apparatus of claim 1 , wherein the circuitry is configured to control time domain duplexing based communication in the primary cell.

14. The apparatus of claim 1 , wherein the apparatus is a mobile communication device.

15. The apparatus of claim 1 , wherein the circuitry is a chipset.

16. An apparatus, comprising:

circuitry configured to

communicate with a base station via a primary cell on a frequency band related to a cellular network using an uplink and downlink configuration specific to the primary cell;

receive, on a downlink carrier on the primary cell, an instruction to perform an interference measurement on a carrier on a secondary cell on a frequency band related to an unlicensed channel;

measure radio interference on the carrier on the secondary cell based on the instruction received on the downlink carrier on the primary cell;

report results of the radio interference measurement to the base station via an uplink carrier on the primary cell; and

communicate with the base station via the secondary cell on the frequency band related to the unlicensed channel based on the results of the radio interference measurement.

17. The apparatus of claim 16 , wherein

the apparatus is a mobile communication device, and

the circuitry includes a communication interface configured to transmit the results of the radio interference measurement to the base station via an uplink carrier on the primary cell.

18. The apparatus of claim 16 , wherein the communication interface is configured to receive, from the base station, information about setting carriers on the secondary cell for uplink and downlink in the frequency band related to the unlicensed channel in response to reporting the results of the radio interference measurement.

19. The apparatus of claim 16 , wherein the uplink and downlink configuration specific to the primary cell is represented by separate carriers on the primary cell for uplink and downlink.

20. A method, comprising:

communicating with a base station via a primary cell on a frequency band related to a cellular network using an uplink and downlink configuration specific to the primary cell;

receiving, on a downlink carrier on the primary cell, an instruction to perform an interference measurement on a carrier on a secondary cell on a frequency band related to an unlicensed channel;

measuring radio interference on the carrier on the secondary cell based on the instruction received on the downlink carrier on the primary cell;

report results of the radio interference measurement to the base station via an uplink carrier on the primary cell; and

communicate with the base station via the secondary cell on the frequency band related to the unlicensed channel based on the results of the radio interference measurement.