Announcements to facilitate detection of wireless devices

1. A method of announcing to a detector of a wireless device comprising:

receiving a signal transmitted by the detector; and

in response to the received signal:

obtaining an announcement regarding the presence of the receiving wireless device, wherein:

the receiving wireless devices occupies a wireless channel, including at least some portion of a time domain and at least some portion of a frequency domain; and

the announcement includes information associatcd with the portion of the time domain occupied by the receiving wireless device and/or the portion of the frequency domain occupied by the receiving wireless device; and

transmitting the announcement in a wireless medium to the detector of the wireless device, wherein the receiving wireless device is a member of a first set of wireless devices and the detector is a member of a second set of wireless devices.

2. A method as recited in claim 1 , wherein the wireless device includes a narrowband wireless device.

3. A method as recited in claim 1 further including identifying a band used to transmit the announcement in the wireless medium.

4. A method as recited in claim 1 , wherein the detector of a wireless device includes an ultrawideband (UWB) wireless device.

5. A method as recited in claim 1 , wherein transmitting the announcement occurs periodically.

6. A method as recited in claim 1 , wherein transmitting the announcement includes using a band that is dedicated for detection.

7. A method as recited in claim 1 , wherein transmitting the announcement includes using a band that, with respect to the wireless device, is dedicated for detection.

8. A method as recited in claim 1 , wherein transmitting the announcement includes using a band that, with respect to the detector, is a band dedicated for detection.

9. A method as recited in claim 1 , wherein transmitting the announcement includes using a band that is a guard band.

10. A method as recited in claim 1 , wherein transmitting the announcement includes transmitting the announcement in a plurality of bands.

11. A method as recited in claim 1 , wherein the wireless device is in a process of joining a group while transmitting the announcement.

12. A method as recited in claim 1 , wherein the announcement includes a frame.

13. A method as recited in claim 1 , wherein the announcement includes energy.

14. A method as recited in claim 1 , wherein obtaining an announcement includes obtaining a location containing the announcement.

15. A method as recited in claim 1 , wherein the announcement includes a predetermined announcement.

16. A method as recited in claim 1 , wherein obtaining an announcement includes selecting an announcement from a plurality of announcements.

17. A system for announcing to a detector of a wireless device comprising:

a receiver configured to receive a signal transmitted by the detector;

a processor configured to obtain an announcement regarding the presence of the receiving wireless device in response to the received signal, wherein:

the receiving wireless devices occupies a wireless channel, including at least some portion of a time domain and at least some portion of a frequency domain; and

the announcement includes information associatcd with the portion of the time domain occupied by the receiving wireless device and/or the portion of the frequency domain occupied by the receiving wireless device; and

a transmitter configured to transmit the announcement in a wireless medium to the detector of the wireless device in response to the received signal, wherein the receiving wireless device is a member of a first set of wireless devices and the detector is a member of a second set of wireless devices.

18. A system as recited in claim 17 further comprising:

a first radio device associated with a first set of bands; and

a second radio device associated with a second set of bands.

19. A system as recited in claim 17 further comprising:

a first radio device associated with a first set of bands used for detecting; and

a second radio device associated with a second set of bands.

20. A computer program product for announcing to a detector of a wireless device, the computer program product being embodied in a computer readable medium and comprising computer instructions for:

receiving a signal transmitted by the detector; and

in response to the received signal:

obtaining an announcement regarding the presence of the receiving wireless device, wherein:

the receiving wireless devices occupies a wireless channel, including at least some portion of a time domain and at least some portion of a frequency domain; and

the announcement includes information associatcd with the portion of the time domain occupied by the receiving wireless device and/or the portion of the frequency domain occupied by the receiving wireless device; and

transmitting the announcement in a wireless medium to the detector of the wireless device, wherein the receiving wireless device is a member of a first set of wireless devices and the detector is a member of a second set of wireless devices.