Cognitive multi-user OFDMA
AssigneeMicrosoft Technology Licensing, LLC
InventorsAmer A. Hassan, Christian Huitema
Life of this patent
Estimating the term…
Abstract
A computing device operating according to a frequency division multiplexed protocol in which communication occurs over a signal formed from a plurality of sub-channels selected from anywhere in a frequency spectrum. A computing device may select sub-channels cognitively by using information about sub-channels previously deemed suitable or unsuitable by that computing device or other computing devices. A described technique for determining sub-channel suitability includes analyzing radio frequency energy in the sub-channel to detect signals generated by another computing device or high noise levels. Information may also be used to cognitively select sub-channels to be analyzed, such as by first selecting for analysis previously-used sub-channels.
Claims20
A method performed on a computing device, the method comprising:
- selecting, by the computing device based on an indication that a first set of one or more sub-channels in a radio spectrum is associated with a second device, a second set of one or more sub-channels in the radio spectrum, where each sub-channel in the selected second set of one or more sub-channels is different than each sub-channel in the first set of one or more sub-channels, and where the second device is separate from the computing device;
- and
- transmitting, by the computing device, data via the selected second set of one or more sub-channels.
A computing device comprising;
- at least one processor;
- memory coupled to the at least one processor and comprising computer-executable instructions via which, based on execution by the at least one processor, the computing device is configured for selecting, based on an indication that a first set of one or more sub-channels in a radio spectrum is associated with a second device, a second set of one or more sub-channels in the radio spectrum, where each sub-channel in the selected second set of one or more sub-channels is different than each sub-channel in the first set of one or more sub-channels, and where the second device is separate from the computing device;
- and
- radio hardware via which the computing device is configured for transmitting data via the selected second set of one or more sub-channels.
At least one computer-readable medium comprising:
- a hardware computer memory that comprises computer-executable instructions that, based on execution by at least one processor of a computing device, configure the computing device to perform actions comprising:
- selecting, by the computing device based on an indication that a first set of one or more sub-channels in a radio spectrum is associated with a second device, a second set of one or more sub-channels in the radio spectrum, where each sub-channel in the selected second set of one or more sub-channels is different than each sub-channel in the first set of one or more sub-channels, and where the second device is separate from the computing device;
- and
- transmitting, by the computing device, data via the selected second set of one or more sub-channels.
Dependencies are inferred from the claim text.