Transport layer modification to enable transmission gaps

摘要

White space devices are operable to communicate information over white space and, more specifically, to quiet a transmitter to enable sensing signals in the white space. A method for inconspicuous quieting of a transmitter in a white space communication device modifies a transport stream for transmission by the transmitter of the white space device to provide a null window of time. The null window does not contain essential information. At least a portion of the modified transport stream is transmitted by the transmitter of the white space device. The transmitter is quieted during the null window, and white space sensing is performed during the null window.

主权项

1. A method for inconspicuous quieting of a transmitter in a white space device, the method comprising:
modifying, with transport layer information, a transport stream for transmission by the transmitter of the white space device to include a null window of time at a predetermined position within the transport stream; performing white space detection of licensed Advanced Television Systems Committee (ATSC) signals at a timing synchronized with an occurrence of the predetermined position of the null window, wherein the null window does not interfere with the white space detection; and transmitting the modified transport stream by the transmitter of the white space device.