Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, frequency data computation and analytics. Nodes in the network are arranged into subnets with at least one node per subnet connected to a physical high-speed computer communication link. The wireless network using packet switched beams, the beams are formed and switched electronically. It utilizes advanced signal processing to compensate for low transmit signal power and multipath reflections that can be frequency or flat fades.

Abstract: Various of the disclosed embodiments synchronize transmission/reception timing between nodes in a wireless network of nodes. Some embodiments share GPS reference signals and local clock values between nodes to identify relative offset corrections. These corrections may then be used to synchronize transmission/reception periods. A PLL at each node may adjust a received GPS signal to coincide with a local operational frequency at the node, while pulse detect logic may be used to record when the GPS signal was received. Some embodiments also address scenarios where GPS signals are not available at one of the nodes. The deficient node may instead identify its local offset by maximizing the cross-correlation of a signal received from a node retaining GPS capability. In some embodiments, the cumulative error along paths in the network may be determined to further compensate for the behavior of nodes lacking GPS capability. GPS capability may, e.g., be deliberately omitted from some nodes to reduce costs.

Abstract: Methods, systems and apparatuses for selecting parameters of a beam are disclosed. One method includes selecting, by a network controller of a wireless network, coarse beam parameters of each of a plurality of antenna arrays of a first node or a second node of the wireless network based on one or more static parameters of the first node and the second node, selecting, by at least one of the first node or the second node of the wireless network, fine beam parameters of each of the plurality of antenna arrays of the first node or the second node based on perturbations to dynamic parameters of at least one wireless link between the first node and the second node, and forming at least one beam by at least one of the first node or the second node using the coarse beam parameters and the fine beam parameters.

Abstract: Methods, systems and apparatuses for selecting beamforming parameters based on selected micro-routes are disclosed. One method includes characterizing at least one wireless link between a first node and a second node of a wireless network, including identifying a plurality of micro-routes between the first node and the second node, selecting a micro-route from the plurality of micro-routes for each of a plurality of antenna arrays of at least one of the first node or the second node, yielding a plurality of selected micro-routes, selecting beam forming parameters for each of the plurality of antenna arrays based on the plurality of selected micro-routes, and communicating at least one stream between the first node and the second node through the plurality of selected micro-routes of the plurality of antenna arrays.

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, frequency data computation and analytics. Packets are transmitted at times and in directions to minimize interference between nodes in the network. The wireless network is a single frequency network that permits limited non-line-of-sight operation.

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, low frequency data computation and analytics. The wireless network is a single frequency network that permits limited non-line of sight operation. The wireless network using packet switched beams, the beams are formed and switched electronically. It utilizes advanced signal processing to compensate for low transmit signal power and multipath reflections that can be frequency or flat fades.

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, frequency data computation and analytics. The wireless network is a single frequency network that permits limited non-line-of-sight operation. The wireless network using packet switched beams, the beams are formed and switched electronically. It utilizes advanced signal processing to compensate for low transmit signal power and multipath reflections that can be frequency or flat fades.

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, frequency data computation and analytics. Training signals are transmitted in a number of different transmit directions and attempted to be received in a number of different receive directions in order to create a radio frequency map of transmit/receive directions that allow a communication path to be created between nodes of the network. The wireless network is a single frequency network that permits limited non-line-of-sight operation.

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, frequency data computation and analytics. Nodes in the network are arranged into subnets with at least one node per subnet connected to a physical high-speed computer communication link. The wireless network using packet switched beams, the beams are formed and switched electronically. It utilizes advanced signal processing to compensate for low transmit signal power and multipath reflections that can be frequency or flat fades.

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, low frequency data computation and analytics. The wireless network is a single frequency network that permits limited non-line of sight operation. The wireless network using packet switched beams, the beams are formed and switched electronically. It utilizes advanced signal processing to compensate for low transmit signal power and multipath reflections that can be frequency or flat fades.

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, low frequency data computation and analytics. The wireless network is a single frequency network that permits limited non-line of sight operation. The wireless network using packet switched beams, the beams are formed and switched electronically. It utilizes advanced signal processing to compensate for low transmit signal power and multipath reflections that can be frequency or flat fades.

Abstract: A Next Generation Data Network is described. It leverages the “cloud” for data management, low frequency data computation and analytics. The wireless network is a single frequency network that permits limited non-line of sight operation. The wireless network using packet switched beams, the beams are formed and switched electronically. It utilizes advanced signal processing to compensate for low transmit signal power and multipath reflections that can be frequency or flat fades.

Abstract: Systems and methods for monitoring navigation state errors are provided. In this regard, a representative system, among others, includes a receiver that is configured to receive GPS signals and calculate pseudorange (PR) residuals, the receiver including a navigation state error manager that is configured to: calculate a distance traveled by the receiver having the PR residuals, determine whether a navigation state has errors based on the calculated PR residuals and calculated distance, and responsive to determining that the navigation state has errors, send an error message indicating that the navigation state has errors.

Abstract: Methods and systems for using W-code to extend anti-spoof capability to civilian GPS receivers for verifying locations of mobile terminals are disclosed. A system for verifying a reported location of a mobile terminal includes a receiver of the mobile terminal and a verification processor. The receiver processes the radio ranging signals to generate measured quantities related to the W-code to the verification processor. The receiver also provides the reported location of the mobile terminal to the verification processor. The verification processor generates expected quantities related to the W-code based on the reported location of the mobile terminal. The verification processor further compares the measured quantities related to the W-code to the expected quantities related to the W-code to verify the reported location of the mobile terminal.

Abstract: Systems and methods are described for determining location of wireless devices using signal strength of signals detected by the wireless devices. The strength of signals received from identifiable sources is typically compared to reference signal strength measurements collected or estimated at known locations. Information identifying the source of the signals is typically obtained from data provided in the signals. Mappers associate combinations of reference signal strengths with geometrically shaped geographical regions such that signal strength measurements can be used as indices to locate a region in which a wireless device can be found. Systems and methods are described for receiving signal strength information from known locations where the information can be used to update and improve mapping system databases.

Abstract: A wireless device including a transceiver that utilizes a power supply is described. The wireless device includes a Global Positioning System (“GPS”) section having a plurality of GPS subsystems and a power controller in signal communication with the power supply and GPS section, wherein the power controller is configured to selectively power each GPS subsystem from the plurality of GPS subsystems.

Abstract: Methods and systems for using W-code to extend anti-spoof capability to civilian GPS receivers for verifying locations of mobile terminals are disclosed. A system for verifying a reported location of a mobile terminal includes a receiver of the mobile terminal and a verification processor. The receiver processes the radio ranging signals to generate measured quantities related to the W-code to the verification processor. The receiver also provides the reported location of the mobile terminal to the verification processor. The verification processor generates expected quantities related to the W-code based on the reported location of the mobile terminal. The verification processor further compares the measured quantities related to the W-code to the expected quantities related to the W-code to verify the reported location of the mobile terminal.

Abstract: A wireless device including a transceiver that utilizes a power supply is described. The wireless device includes a Global Positioning System (“GPS”) section having a plurality of GPS subsystems and a power controller in signal communication with the power supply and GPS section, wherein the power controller is configured to selectively power each GPS subsystem from the plurality of GPS subsystems.

Abstract: Systems and methods for mitigating multipath signals in a receiver are provided. In this regard, a representative system, among others, includes a receiver comprising an antenna being configured to receive signals from a plurality of satellites, and a computing device being configured to: generate pseudorange measurements based on the received satellites signals, process the generated pseudorange measurements to reduce its pseudorange residuals based on statistical modeling in order to mitigate multipath errors, and compute navigation solutions based on the processed pseudorange measurements. A representative method, among others, for mitigating multipath signals in a receiver, comprises: receiving the pseudorange measurements; processing the received pseudorange measurements to reduce its pseudorange residuals based on statistical modeling in order to mitigate multipath errors; and computing navigation solutions based on the processed pseudorange measurements.

Abstract: A method and a voltage-controlled oscillator provide an output signal with a frequency within one of a plurality of frequency bands, while reducing or eliminating temperature-induced band-switching or other drifts in operating frequency. The band-switching is reduced or eliminated by providing a circuit that adjusts a tuning sensitivity according to a calibration performed under test conditions. For example, such a voltage-controlled oscillator may include (a) a digitally controlled variable current source for providing a first control current to select one of the frequency bands for the voltage-controlled oscillator; (b) a variable transconductance circuit providing a second control current to compensate a variation in operating frequency; and (c) a control circuit for varying the frequency of the output signal in accordance with the first and second control signals.