Abstract: A passive intermodulation detection system is provided to remotely identify passive intermodulation at a base station site and diagnose the type of intermodulation and location of the non-linearity that is the source of the passive intermodulation. A passive intermodulation cancelation system can generate an equivalent signal to a received interference signal and use the equivalent signal to generate an error signal. The error signal can then be used to reinforce a learning system and converge on a steady state of the interference signal to cancel other interference signals.

Abstract: A passive intermodulation detection system is provided to remotely identify passive intermodulation at a base station site and diagnose the type of intermodulation and location of the non-linearity that is the source of the passive intermodulation. The passive intermodulation detection system can generate a test signal in a first band that is transmitted by an antenna. Another antenna can receive a signal in another band, and the passive intermodulation detection system can analysis the received signal to determine whether an intermodulation product due to a non-linearity is present. Based on the type of intermodulation product, period, order, frequency, and etc., the type and location of the non-linearity can be identified.

Abstract: Both uplink spectral efficiency and downlink spectral efficiency are improved through adjustments made to various parameters that would otherwise be treated as static type parameters. Variations in respective performance of two or more cells can be considered during the adjustment. Further, variations of respective cell performance based on time of day/week are considered and compensated for through various adjustments. Such timely adaptations are applied in order to improve the performance of each cell, during each time of day/week.

Abstract: A passive intermodulation detection system is provided to remotely identify passive intermodulation at a base station site and diagnose the type of intermodulation and location of the non-linearity that is the source of the passive intermodulation. The passive intermodulation detection system can generate a test signal in a first band that is transmitted by an antenna. Another antenna can receive a signal in another band, and the passive intermodulation detection system can analyze the received signal to determine whether an intermodulation product due to a non-linearity is present. Based on the type of intermodulation product, period, order, frequency, and etc, the type and location of the non-linearity can be identified and canceled via a passive intermodulation canceling mechanism.

Abstract: Techniques for monitoring and diagnosing states of wireless network elements having a known impact on uplink interference are presented. In an aspect, a method includes receiving, by a system including a processor, diagnostic data for a cellular network including strength data representative of strengths of radio frequency signals, prior to demodulation, respectively received at a plurality of antennas of a base station of the cellular network over a defined duration of time and at a defined sampling rate. The method further includes, based on analyzing the strength data by the system, determining by the system, a state of a network element of the cellular network.

Abstract: A passive intermodulation detection system is provided to remotely identify passive intermodulation at a base station site and diagnose the type of intermodulation and location of the non-linearity that is the source of the passive intermodulation. The passive intermodulation detection system can generate a test signal in a first band that is transmitted by an antenna. Another antenna can receive a signal in another band, and the passive intermodulation detection system can analysis the received signal to determine whether an intermodulation product due to a non-linearity is present. Based on the type of intermodulation product, period, order, frequency, and etc., the type and location of the non-linearity can be identified.

Abstract: Both uplink spectral efficiency and downlink spectral efficiency are improved through adjustments made to various parameters that would otherwise be treated as static type parameters. Variations in respective performance of two or more cells can be considered during the adjustment. Further, variations of respective cell performance based on time of day/week are considered and compensated for through various adjustments. Such timely adaptations are applied in order to improve the performance of each cell, during each time of day/week.

Abstract: Techniques for monitoring and diagnosing states of wireless network elements having a known impact on uplink interference are presented. In an aspect, a method includes receiving, by a system including a processor, diagnostic data for a cellular network including strength data representative of strengths of radio frequency signals, prior to demodulation, respectively received at a plurality of antennas of a base station of the cellular network over a defined duration of time and at a defined sampling rate. The method further includes, based on analyzing the strength data by the system, determining by the system, a state of a network element of the cellular network.

Abstract: Aspects relate to temporarily disabling a message or a set of messages based on the detection that an uplink transmission power is reaching maximum power or is at maximum power. The detection can be based on observing that one or more uplink transmissions are near, or at, the maximum power. The message or set of messages that are disabled can be a non-call critical message(s), such as a non-signaling radio bearer related message(s). Disabling the message or set of messages can conserve resources, which can be utilized for call critical messages, which can include signaling radio bearer related messages, call maintenance messages, voice communications, and so forth. Disabling the message or set of messages can also mitigate the chances of a call being disconnected due to power demands that exceed the maximum power available.

Abstract: Aspects relate to temporarily disabling a message or a set of messages based on the detection that an uplink transmission power is reaching maximum power or is at maximum power. The detection can be based on observing that one or more uplink transmissions are near, or at, the maximum power. The message or set of messages that are disabled can be a non-call critical message(s), such as a non-signaling radio bearer related message(s). Disabling the message or set of messages can conserve resources, which can be utilized for call critical messages, which can include signaling radio bearer related messages, call maintenance messages, voice communications, and so forth. Disabling the message or set of messages can also mitigate the chances of a call being disconnected due to power demands that exceed the maximum power available.

Abstract: A method is provided. The method includes receiving a carrier signal and analyzing the received carrier signal to identify at least one of a static multipath delay and a dynamic multipath delay in the signal. The method also includes configuring an equalizer based upon the at least one of the static and dynamic multipath delays.

Abstract: Aspects relate to temporarily disabling a message or a set of messages based on the detection that an uplink transmission power is reaching maximum power or is at maximum power. The detection can be based on observing that one or more uplink transmissions are near, or at, the maximum power. The message or set of messages that are disabled can be a non-call critical message(s), such as a non-signaling radio bearer related message(s). Disabling the message or set of messages can conserve resources, which can be utilized for call critical messages, which can include signaling radio bearer related messages, call maintenance messages, voice communications, and so forth. Disabling the message or set of messages can also mitigate the chances of a call being disconnected due to power demands that exceed the maximum power available.

Abstract: Systems, methods, and apparatus for cluster-based optimization of antenna tilts in a wireless network are presented herein. A screening component can receive information indicating wireless conditions of respective wireless access points of a geographical region, select, based on a performance criterion, an access point of the respective wireless access points, and group the access point and an other access point of the respective wireless access points into a representation of a cluster of access points. Further, an optimization component can derive antenna tilt values for respective access points of the cluster of the access points in response to a simulation of an application of the antenna tilt values to the respective access points. Furthermore, an implementation component can direct the antenna tilt values to respective components of the respective access points.

Abstract: Aspects relate to temporarily disabling a message or a set of messages based on the detection that an uplink transmission power is reaching maximum power or is at maximum power. The detection can be based on observing that one or more uplink transmissions are near, or at, the maximum power. The message or set of messages that are disabled can be a non-call critical message(s), such as a non-signaling radio bearer related message(s). Disabling the message or set of messages can conserve resources, which can be utilized for call critical messages, which can include signaling radio bearer related messages, call maintenance messages, voice communications, and so forth. Disabling the message or set of messages can also mitigate the chances of a call being disconnected due to power demands that exceed the maximum power available.

Abstract: A computer system may comprise a receiver to perform equalization. The receiver comprises an equalizer. The equalizer may determine locations of a principal tap, a platform noise tap, and a pre-cursor tap in a feedforward path of an equalizer. Also, the equalizer may determine locations of a post-cursor tap, a cross-term tap, and a portable tap in a feedback path of the equalizer. The receiver may align the portable tap in the feedback path with the principal tap in the feedforward path. The platform noise tap may cancel the effect of platform noise on a principal located at the principal tap, thus enabling the computer system to operate effectively in severe platform noise environment. Also, the computer system may operate in statics and portable environment in which platform noise and AGWN may be present.

Abstract: Briefly, in accordance with one embodiment of the invention, an orthogonal frequency division multiplexing system may provide a dynamically calculated cyclic extension, the length of which may be based at least in part on a delay spread due to an experienced environmental condition. The length of the cyclic extension may be calculated by determining a channel impulse response, and then computing the energy distribution of the channel impulse response. The length of the cyclic extension may then be set according to the energy distribution of the channel impulse response.

Abstract: A computer system may comprise a receiver to perform equalization. The receiver comprises an equalizer. The equalizer may determine locations of a principal tap, a platform noise tap, and a pre-cursor tap in a feedforward path of an equalizer. Also, the equalizer may determine locations of a post-cursor tap, a cross-term tap, and a portable tap in a feedback path of the equalizer. The receiver may align the portable tap in the feedback path with the principal tap in the feedforward path. The platform noise tap may cancel the effect of platform noise on a principal located at the principal tap, thus enabling the computer system to operate effectively in severe platform noise environment. Also, the computer system may operate in statics and portable environment in which platform noise and AGWN may be present.

Abstract: A method is provided. The method includes receiving a carrier signal and analyzing the received carrier signal to identify at least one of a static multipath delay and a dynamic multipath delay in the signal. The method also includes configuring an equalizer based upon the at least one of the static and dynamic multipath delays.

Abstract: An apparatus and a system, as well as a method and article, may operate to shift a center frequency of selected ones of a plurality of received signals by selected amounts to provide a plurality of shifted signals located in a frequency domain, which may then be combined into a composite signal centered at a selected frequency.

Abstract: Embodiments of an adaptive in-phase (I) and/or quadrature-phase (Q) imbalance correction for multicarrier wireless communication systems is generally described.