Coexistence of white space devices and wireless narrowband devices

摘要

Architecture that enables wireless narrowband devices (e.g., wireless microphones) and white space devices to efficiently coexist on the same telecommunications channels, while not interfering with the usability of the wireless narrowband device. The architecture provides interference detection, strobe generation and detection and, power ramping and suppression (interference-free coexistence with spectrum efficiency). The architecture provides the ability of the white space device to learn about the presence of the microphone. This can be accomplished i using a geolocation database, reactively via a strober device, and/or proactively via the strober device. The strober device can be positioned close to the microphone receiver and signals the presence of a microphone to white space devices on demand. The strober device takes into consideration the microphone's characteristics as well as the relative signal strength from the microphone transmitter versus the white space device, in order to enable maximum use of the available white space spectrum.

主权项

1. A communications system, comprising:
a white space channel on which a white space device and a wireless narrowband device seek to operate; and an assistance component that assists the white space device in operating on the white space channel concurrently with the wireless narrowband device, by: sending notification to the white space device of operating presence of the wireless narrowband device on the white space channel, in response to which the white space device initiates an incremental transmit power ramp-up mode, and signaling the white space device of impending audible interference of the white space device with the wireless narrowband device, in response to which the white space device ceases transmission in a specific portion of spectrum in which the narrowband device transmits to prevent interference with usability of the wireless narrowband device, the specific portion of spectrum being substantially less than an entire channel portion of spectrum that is specifically associated with the white space channel.