429 results about "Radio spectrum" patented technology

This invention addresses a method of whereby a cellular base station can scan the radio band to identify radio channels that are not in use, then claim those un-used radio channels for use to transmit and receive radio signals. A plurality of such radio base station could then comprise a cellular radio network, which channel planning and frequency re-use has become autonomous and self organizing. The present disclosure aims to further expand the utility and function of such self organizing cellular networks by including a user interface to the base station by which the operator can define the radio spectrum boundaries that the base station is authorized to operate within and to further set operational rules for the use of sub-sections of that defined spectral boundary.

A intelligent backhaul radio is disclosed that is compact, light and low power for street level mounting, operates at 100 Mb / s or higher at ranges of 300 m or longer in obstructed LOS conditions with low latencies of 5 ms or less, can support PTP and PMP topologies, uses radio spectrum resources efficiently and does not require precise physical antenna alignment.

A intelligent backhaul radio is disclosed that is compact, light and low power for street level mounting, operates at 100 Mb / s or higher at ranges of 300 m or longer in obstructed LOS conditions with low latencies of 5 ms or less, can support PTP and PMP topologies, uses radio spectrum resources efficiently and does not require precise physical antenna alignment.

A direction finder is disclosed that is a hand-held device used to locate a vehicle in a parking lot using a two way radio link, operating in an unlicensed freely available band of the radio spectrum. Made for outdoor use, it is independent of GPS systems, cellular telephone systems, Loran, and any other system with a large infrastructure.

Embodiments of cognitive radio technology can recover and utilize underutilized portions of statically-allocated radio-frequency spectrum. A plurality of sensing methods can be employed. Transmission power control can be responsive to adjacent channel measurements. Digital pre-distortion techniques can enhance performance. Embodiments of a high DNR transceiver architecture can be employed.

A proactive adaptive radio methodology for the opportunistic allocation of radio spectrum is described. The methods can be used to allocate radio spectrum resources by employing machine learning to learn models, via accruing data over time, that have the ability to predict the context-sensitive durations of the availability of channels. The predictive models are combined with decision-theoretic cost-benefit analyses to minimize disruptions of service or quality that can be associated with reactive allocation policies. Rather than reacting to losses of channel, the proactive policies seek switches in advance of the loss of a channel. Beyond determining durations of availability for one or more frequency bands statistical machine learning also be employed to generate price predictions in order to facilitate a sale or rental of the available frequencies, and these predictions can be employed in the switching analyses The methods can be employed in non-cooperating distributed models of allocation, in centralized allocation approaches, and in hybrid spectrum allocation scenarios.