Method of generating repeated data package transmission

1. A method of generating repeated data packets from a first Bluetooth enabled device to a second Bluetooth enabled device to facilitate radio direction finding of the first device by the second device, the method comprising:

establishing a communication connection between the first and second devices in accordance with a Bluetooth protocol stack;

in response to receiving at the second device a data packet transmitted by the first device, causing the second device to transmit an NACK data packet to the first device, whereby the first device is caused to retransmit said data packet; and

causing the second device to process at least one of the transmitted data packet and the retransmitted data packet in accordance with a radio direction finding algorithm,

wherein the communication connection does not use any layer of the protocol stack above the host controller interface.

2. The method of claim 1 , wherein the step of transmitting the NACK data packet is repeated.

3. The method of claim 1 , wherein the communication connection comprises a baseband connection.

4. The method of claim 1 , wherein the communication connection comprises a Remote Name Request.

5. A non-transitory computer program product for facilitating radio direction finding of a first Bluetooth enabled device by a second Bluetooth device, the non-transitory computer program product comprising executable instructions stored thereon that when executed by the second Bluetooth enabled devices cause said device to:

establish a communication connection between the first and second devices in accordance with a Bluetooth protocol stack;

in response to receiving at the second device a data packet transmitted by the first device, cause the second device to transmit an NACK data packet to the first device, whereby the first device is caused to retransmit said data packet; and

cause the second device to process at least one of the transmitted data packet and the retransmitted data packet in accordance with a radio direction finding algorithm,

wherein the communication connection does not use any layer of the protocol stack above the host controller interface.

6. The computer program product of claim 5 , wherein the step of transmitting the NACK data packet is repeated.

7. The computer program product of claim 5 wherein the communication connection comprises a baseband connection.

8. The computer program product of claim 5 , wherein the communication connection comprises a Remote Name Request.

9. A first Bluetooth enabled device to arranged to perform radio direction finding of a second Bluetooth enabled device, the first device being arranged to:

establish a communication connection with the second device in accordance with a Bluetooth protocol stack;

in response to receiving a data packet transmitted by the second device, transmitting an NACK data packet to the second device, whereby the second device is caused to retransmit said data packet; and

processing at least one of the transmitted data packet and the retransmitted data packet in accordance with a radio direction finding algorithm,

wherein the communication connection does not use any layer of the protocol stack above the host controller interface.

10. The device of claim 9 , wherein the step of transmitting the NACK data packet is repeated.

11. The device of claim 9 , wherein the communication connection comprises a baseband connection.

12. The device of claim 9 , wherein the communication connection comprises a Remote Name Request.