Patent
Method and system for detecting in-band jammers in a spread spectrum wireless base station
TLDR
In this article, the jammer detection apparatus utilizes automatic gain control techniques, digital sampling, and digital signal processing to identify anomalous frequency components in the received power spectral density curve.Abstract:
A method and apparatus for use in a wireless communication base station which provides real-time, continuous detection of in-band jammers with negligible impact on base station cost. In addition to providing jammer detection, the use of the invention to provide improved hardware and system diagnostic capabilities is presented. The jammer detection apparatus utilizes automatic gain control techniques, digital sampling, and digital signal processing to identify anomalous frequency components in the received power spectral density curve. Also described are the use of complex sampling, the complex fast Fourier transform (FFT), and Hanning windows to improve jammer detection capabilities. A method of estimating the location of in-band jammers is described using the computed received power spectral density curves of multiple base stations.read more
Citations
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Patent
System and method for management of a shared frequency band
TL;DR: In this paper, a system, method, software and related functions are provided for managing activity in a radio frequency band that is shared, both in frequency and time, by signals of multiple types.
Patent
Server and multiple sensor system for monitoring activity in a shared radio frequency band
TL;DR: In this paper, an intelligent spectrum management (ISM) system and method are provided that includes sophisticated features to detect, classify, and locate sources of RF activity, which includes one or more sensors positioned at various locations in a region where activity in a shared radio frequency band is occurring.
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System and method for management of a shared frequency band using client--specific management techniques
TL;DR: In this article, a system and method for managing communication with a plurality of wireless client devices operating in a radio frequency band shared by other types of devices, comprising a step of controlling at least one parameter associated with radio communication with each of the plurality of mobile devices based on the radio frequency environment associated with each corresponding one of the mobile devices.
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User interface and time-shifted presentation of data in a system that monitors activity in a shared radio frequency band
TL;DR: In this paper, an intelligent spectrum management (ISM) system is proposed to detect, classify, and locate sources of RF activity in a shared radio frequency band, where a server is coupled to the radio sensor devices and aggregates the data generated by the sensor devices.
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System and method for spectrum management of a shared frequency band
Neil R. Diener,Karl A. Miller +1 more
TL;DR: In this article, a system and method for managing the spectrum utilization of a frequency band that is shared, both in frequency and time, by multiple devices is presented, where signals associated with signals occurring in the frequency band are detected by sampling part or all the frequency bands for a time interval.
References
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Patent
Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
TL;DR: A power control system for a cellular mobile telephone system in which system users communicate information signals between one another via at least one cell-site using code division multiple access spread spectrum communication signals is described in this paper.
Patent
Method and apparatus for increasing receiver immunity to interference
TL;DR: In this paper, the power level of a received signal is detected and a receiver processing measures the gain change in the IF signal power (1605), if the change is less than the predetermined amount (1610), the CDMA signal and jammers are below the noise floor and therefore the gain is increased (1615).
Patent
Adaptive power control for a spread-spectrum transmitter
TL;DR: In this article, an adaptive power control of a spread-spectrum transmitter of a mobile station operating in a cellular-communications network using spread spectrum modulation is discussed, where a base station transmits a generic spread spectrum signal and an APC information-data signal.
Patent
System for broadcasting and receiving digital data, receiver and transmitter for use in such system
TL;DR: In this paper, a system for broadcasting and receiving digital data within time divisional multiplexed channels, grouped in frames, each frame comprising multicarrier symbols, including data symbols and system symbols, each symbol comprising a set of orthogonal frequency division multiplexes carriers at carrier positions within a frequency raster with regular carrier spacing.
Patent
Method and apparatus for balancing the forward link handoff boundary to the reverse link handoff boundary in a cellular communication system
TL;DR: In this article, a method and apparatus for matching the location of the forward link handoff boundary to the reverse link handover boundary is presented, where a system constant is chosen which defines the product of the received power and the transmitted pilot power at every base station.