Abstract: In an example, a distributed antenna system (DAS) includes a central unit configured to be coupled to a base station and the central unit is configured to receive downlink signals from the base station. The central unit is also configured to support a plurality of transmission bands and a plurality of receiver bands. The DAS further includes a plurality of remote units configured to communicate wireless signals in a coverage area of the distributed antenna system, and the plurality of remote units are communicatively coupled to the central unit and located remotely from the central unit. The DAS is configured to mitigate interference using dynamic allocation of at least one of the plurality of transmission bands and/or at least one of the plurality of receiver bands among the plurality of remote units.

Abstract: Certain features relate to unequal distribution of transmitters and receivers in a distributed antenna system (DAS). Remote units in the DAS can be configured as transmitting remote units, receiving remote units, or remote transceiver units that can transmit and receive wireless signals. In some configurations, the DAS can be configured with a greater number of transmitting remote units than receiving remote units. In other configurations, the DAS can be configured with a greater number of receiving remote units. In some aspects, unequal distribution of transmitters and receivers can be obtained by allocation of transmission frequencies and receiver frequencies in the DAS.

Abstract: One embodiment is directed to a device comprising one or more processing devices comprising an input and an output. The one or more processing devices are configured to receive an input signal via the input of the one or more processing devices. The one or more processing devices are further configured to apply a transfer function of a variable filter implemented via the one or more processing devices, the transfer function applied to the received input signal in order to generate a filtered signal, wherein application of the transfer function cancels, reduces, attenuates, or eliminates intermodulation byproducts of the input signal. The one or more processing devices are further configured to output the filtered signal via the output of the one or more processing devices.

Abstract: One embodiment is directed to a device comprising one or more processing devices comprising an input and an output. The one or more processing devices are configured to receive an input signal via the input of the one or more processing devices. The one or more processing devices are further configured to apply a transfer function of a variable filter implemented via the one or more processing devices, the transfer function applied to the received input signal in order to generate a filtered signal, wherein application of the transfer function cancels, reduces, attenuates, or eliminates intermodulation byproducts of the input signal. The one or more processing devices are further configured to output the filtered signal via the output of the one or more processing devices.

Abstract: Certain aspects involve power management subsystems for a distributed antenna system (“DAS”) or other telecommunication system. The power management subsystem can include a measurement module and an optimization module. The measurement module can monitor a utilization metric for a remote unit in the DAS or other telecommunication system. The power optimization module can determine whether the remote unit is underutilized based on the monitored utilization metric. The power optimization module can configure the remote unit for a low-power operation in response to determining that the remote unit is underutilized.

Abstract: One embodiment is directed to a distributed antenna system (DAS) comprising a plurality of nodes, including a head-end unit and a plurality of remote units that are communicatively coupled to the head-end unit. The head-end unit is configured to receive uplink received signals from remote units that wirelessly transceive signals in a coverage area. The head-end unit is configured to sum two or more of the uplink received signals to produce a summed uplink received signal. At least one of the nodes of the DAS includes a processing device configured to determine a transfer function and apply the transfer function to signals in the DAS to cancel, reduce, attenuate, or eliminate intermodulation byproducts in the summed uplink received signal.

Abstract: A communication device is provided. The communication device can include a processing device for communicating data via a data connection or receiving power via an electrical connection and a connector for providing the data connection or electrical connection. The connector can include at least one terminal and a sensing module. The terminal can be communicatively coupled to the processing device. The terminal can form the data connection or electrical connection with at least one external terminal of a mating connector. The sensing module can detect a movement associated with removing the mating connector. The sensing module can provide a termination signal to the processing device to terminate the data connection or electrical connection. The processing device can terminate data communication via the data connection or current flow via the electrical connection in response to the termination signal.

Abstract: Telecommunication systems using multiple Nyquist zone operations are provided. In one aspect, a telecommunication system can include a first section and a second section. The first section can receive signals from at least one transmitting base station or transmitting terminal device. The received signals have frequencies in multiple frequency bands. The first section can also sample the received signals such that the received signals are aliased. The first section can also combine the aliased signals from the frequency bands into a combined frequency band in a common Nyquist zone. The second section can extract signals from the combined frequency band. The extracted signals are to be transmitted at frequencies in a frequency band from a Nyquist zone that is different than the common Nyquist zone. The second section can also transmit the extracted signals to at least one receiving base station or receiving terminal device. Other embodiments are disclosed.

Abstract: Certain features relate to unequal distribution of transmitters and receivers in a distributed antenna system (DAS). Remote units in the DAS can be configured as transmitting remote units, receiving remote units, or remote transceiver units that can transmit and receive wireless signals. In some configurations, the DAS can be configured with a greater number of transmitting remote units than receiving remote units. In other configurations, the DAS can be configured with a greater number of receiving remote units. In some aspects, unequal distribution of transmitters and receivers can be obtained by allocation of transmission frequencies and receiver frequencies in the DAS.

Abstract: One embodiment is directed to a distributed antenna system (DAS) comprising a plurality of nodes, including a head-end unit and a plurality of remote units that are communicatively coupled to the head-end unit. The head-end unit is configured to receive uplink received signals from remote units that wirelessly transceive signals in a coverage area. The head-end unit is configured to sum two or more of the uplink received signals to produce a summed uplink received signal. At least one of the nodes of the DAS includes a processing device configured to determine a transfer function and apply the transfer function to signals in the DAS to cancel, reduce, attenuate, or eliminate intermodulation byproducts in the summed uplink received signal.

Abstract: Certain aspects involve power management subsystems for a distributed antenna system (“DAS”) or other telecommunication system. The power management subsystem can include a measurement module and an optimization module. The measurement module can monitor a utilization metric for a remote unit in the DAS or other telecommunication system. The power optimization module can determine whether the remote unit is underutilized based on the monitored utilization metric. The power optimization module can configure the remote unit for a low-power operation in response to determining that the remote unit is underutilized.

Abstract: A communication device is provided. The communication device can include a processing device for communicating data via a data connection or receiving power via an electrical connection and a connector for providing the data connection or electrical connection. The connector can include at least one terminal and a sensing module. The terminal can be communicatively coupled to the processing device. The terminal can form the data connection or electrical connection with at least one external terminal of a mating connector. The sensing module can detect a movement associated with removing the mating connector. The sensing module can provide a termination signal to the processing device to terminate the data connection or electrical connection. The processing device can terminate data communication via the data connection or current flow via the electrical connection in response to the termination signal.

Abstract: Telecommunication systems using multiple Nyquist zone operations are provided. In one aspect, a telecommunication system can include a first section and a second section. The first section can receive signals from at least one transmitting base station or transmitting terminal device. The received signals have frequencies in multiple frequency bands. The first section can also sample the received signals such that the received signals are aliased. The first section can also combine the aliased signals from the frequency bands into a combined frequency band in a common Nyquist zone. The second section can extract signals from the combined frequency band. The extracted signals are to be transmitted at frequencies in a frequency band from a Nyquist zone that is different than the common Nyquist zone. The second section can also transmit the extracted signals to at least one receiving base station or receiving terminal device. Other embodiments are disclosed.

Abstract: A communication device is provided. The communication device can include a processing device for communicating data via a data connection or receiving power via an electrical connection and a connector for providing the data connection or electrical connection. The connector can include at least one terminal and a sensing module. The terminal can be communicatively coupled to the processing device. The terminal can form the data connection or electrical connection with at least one external terminal of a mating connector. The sensing module can detect a movement associated with removing the mating connector. The sensing module can provide a termination signal to the processing device to terminate the data connection or electrical connection. The processing device can terminate data communication via the data connection or current flow via the electrical connection in response to the termination signal.

Abstract: Telecommunication systems using multiple Nyquist zone operations are provided. In one aspect, a telecommunication system can include a first section and a second section. The first section can receive signals from at least one transmitting base station or transmitting terminal device. The received signals have frequencies in multiple frequency bands. The first section can also sample the received signals such that the received signals are aliased. The first section can also combine the aliased signals from the frequency bands into a combined frequency band in a common Nyquist zone. The second section can extract signals from the combined frequency band. The extracted signals are to be transmitted at frequencies in a frequency band from a Nyquist zone that is different than the common Nyquist zone. The second section can also transmit the extracted signals to at least one receiving base station or receiving terminal device. Other embodiments are disclosed.

Abstract: Telecommunication systems using multiple Nyquist zone operations are provided. In one aspect, a telecommunication system can include a first section and a second section. The first section can receive signals from at least one transmitting base station or transmitting terminal device. The received signals have frequencies in multiple frequency bands. The first section can also sample the received signals such that the received signals are aliased. The first section can also combine the aliased signals from the frequency bands into a combined frequency band in a common Nyquist zone. The second section can extract signals from the combined frequency band. The extracted signals are to be transmitted at frequencies in a frequency band from a Nyquist zone that is different than the common Nyquist zone. The second section can also transmit the extracted signals to at least one receiving base station or receiving terminal device.

Abstract: Telecommunication systems using multiple Nyquist zone operations are provided. In one aspect, a telecommunication system can include a first section and a second section. The first section can receive signals from at least one transmitting base station or transmitting terminal device. The received signals have frequencies in multiple frequency bands. The first section can also sample the received signals such that the received signals are aliased. The first section can also combine the aliased signals from the frequency bands into a combined frequency band in a common Nyquist zone. The second section can extract signals from the combined frequency band. The extracted signals are to be transmitted at frequencies in a frequency band from a Nyquist zone that is different than the common Nyquist zone. The second section can also transmit the extracted signals to at least one receiving base station or receiving terminal device. Other embodiments are disclosed.

Abstract: A communication device is provided. The communication device can include a processing device for communicating data via a data connection or receiving power via an electrical connection and a connector for providing the data connection or electrical connection. The connector can include at least one terminal and a sensing module. The terminal can be communicatively coupled to the processing device. The terminal can form the data connection or electrical connection with at least one external terminal of a mating connector. The sensing module can detect a movement associated with removing the mating connector. The sensing module can provide a termination signal to the processing device to terminate the data connection or electrical connection. The processing device can terminate data communication via the data connection or current flow via the electrical connection in response to the termination signal.

Abstract: Systems and methods are provided for compensating for analog distortion in telecommunication systems. In one aspect, a system is provided for communicating signals having frequencies in multiple frequency bands between at least one base station and at least one terminal device. The system includes a transport section, a digital filter, and a processing device. The transport section includes an analog filter. The analog filter can reduce interference from interfering signals having frequencies in frequency bands adjacent to received signals from an antenna by filtering the received signals. The processing device can modify filter coefficients of the digital filter. The digital filter with the modified filter coefficients can compensate for distortion in the received signals caused by the analog filter.

Abstract: Telecommunication systems using multiple Nyquist zone operations are provided. In one aspect, a telecommunication system can include a first section and a second section. The first section can receive signals from at least one transmitting base station or transmitting terminal device. The received signals have frequencies in multiple frequency bands. The first section can also sample the received signals such that the received signals are aliased. The first section can also combine the aliased signals from the frequency bands into a combined frequency band in a common Nyquist zone. The second section can extract signals from the combined frequency band. The extracted signals are to be transmitted at frequencies in a frequency band from a Nyquist zone that is different than the common Nyquist zone. The second section can also transmit the extracted signals to at least one receiving base station or receiving terminal device.