Systems and etiquette for home gateways using white space
First Claim
1. A data distribution unit for transmitting data signals carrying user data to a wireless enabled device located within a specified area, comprising:
- a backhaul interface configured to receive a plurality of data signals from a plurality of signal sources;
a processor configured to select, from the backhaul interface, a data signal from a signal source, convert the data signal to a baseband signal in accordance with a first protocolassociated with the wireless enabled device, and partition the baseband signal into component signals based on bands in a white space channel identified in TV spectrum as available for communication in the specified area; and
a distributor coupled to the processor, the distributor configured to receive an identification of the white-space channel, and convert the component signals for transmission on the white-space channel, the distributor comprisingbranches connected to the processor, the branches being tuned on carrier frequencies associated with the white-space channel, anda radio frequency (RF) combiner for combining outputs of the branches at an input of an antenna, wherein the number of component signals is less than or equal to the number of branches.
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Accused Products
Abstract
Methods and systems for sharing white space with primary services and other emerging services are provided. Signal distribution within a specified location, such as a dwelling, is performed using a home gateway that identifies unused white space, reserves such white space spectrum, and delivers data to one or more devices at the respective location using the reserved spectrum. Signalling between the devices and the gateway is performed over a shared signalling channel, which enables the gateway to advise the devices from where and when to receive data. The gateway also uses a common spectrum reservation OFDM symbol to advise the neighbouring gateways of the local spectrum reservation.
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Citations
17 Claims
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1. A data distribution unit for transmitting data signals carrying user data to a wireless enabled device located within a specified area, comprising:
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a backhaul interface configured to receive a plurality of data signals from a plurality of signal sources; a processor configured to select, from the backhaul interface, a data signal from a signal source, convert the data signal to a baseband signal in accordance with a first protocol associated with the wireless enabled device, and partition the baseband signal into component signals based on bands in a white space channel identified in TV spectrum as available for communication in the specified area; and a distributor coupled to the processor, the distributor configured to receive an identification of the white-space channel, and convert the component signals for transmission on the white-space channel, the distributor comprising branches connected to the processor, the branches being tuned on carrier frequencies associated with the white-space channel, and a radio frequency (RF) combiner for combining outputs of the branches at an input of an antenna, wherein the number of component signals is less than or equal to the number of branches. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for distribution of data signals carrying user data to a wireless enabled device located within a specified area, comprising:
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selecting a data signal from a signal source received via a backhaul connection; converting the data signal to a baseband signal according to a first protocol associated with the wireless enabled device; separating the baseband signal into component signals, wherein the number of component signals is equal to the number of bands in a white space channel identified in TV spectrum as available for communication in the specified area; selecting a carrier frequency for each of the component signals in a part of the TV spectrum that is not currently used by a primary service; modulating the component signals over a respective carrier frequency; and adjusting powers of the component signals to a respective value. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method for distribution of data signals carrying user data to a wireless enabled device located within a specified area, comprising:
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receiving a data signal via a backhaul connection; converting the received data signal to a baseband signal according to a protocol associated with the wireless enabled device; separating the baseband signal into component signals, the number of component signals equal to a number of bands in a white space channel identified in TV spectrum as available for communication in the specified area; and converting the component signals for transmission to the wireless enabled device on the white-space channel. - View Dependent Claims (15, 16, 17)
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Specification