A method that incorporates aspects of the subject disclosure may include, for example, receiving digital data via a plurality of fiber optic cables, wherein the digital data represents a plurality of radio frequency signals received at a plurality of remote radio units via a plurality of uplink paths, wherein the first virtual processing system is configured to mitigate interference detected in one or more of the plurality of uplink paths, performing a plurality of measurements of the digital data to identify an interference condition associated with at least a portion of the plurality of uplink paths associated with the plurality of remote radio units; and providing updated digital data, according to the interference condition that is identified, to a second virtual processing system including at least one second virtual processor, wherein the second virtual processing system is configured to operate as one or more baseband units for providing cellular communication services. Other embodiments are disclosed.

A receiving device includes: a receiver which receives a broadcast signal including an audio signal and obtains a baseband signal of a received signal; a demodulator which obtains the audio signal by demodulating the baseband signal; a middle frequency range detector which detects a signal level of a middle frequency component in a frequency range of the baseband signal; a high frequency range detector which detects a signal level of a high frequency component in the frequency range of the baseband signal; and a processing circuit which sets an effect amount of high-cut processing based on a level difference between the signal level of the middle frequency component and the signal level of the high frequency component. The receiving device further includes a high-cut filtering device which performs the high-cut processing on the audio signal in accordance with a set value of the effect amount.

A measurement apparatus and method for measurement of a radio frequency (RF) signal, said measurement apparatus comprising a signal input adapted to receive an RF-signal being split into a first measurement signal path and into a second measurement signal path of said measurement apparatus, wherein said first measurement signal path is adapted to measure the split RF-signal within a predefined first frequency band around a predefined measurement frequency, wherein said second measurement signal path is adapted to measure a current frequency at a power maximum of the split RF-signal in a predefined second frequency band, and wherein the RF-signal measured in said first measurement signal path is shifted in the frequency domain depending on the current frequency measured in said second measurement signal path.

A method that incorporates aspects of the subject disclosure may include, for example, obtaining, by a system comprising a processor, interference information associated with one or more physical resource blocks (PRBs) from each base station of a plurality of base stations. Further, the method can include determining, by the system, from the interference information a strategy for improving a PRB utilization of a first base station of the plurality of base stations. In addition, the method can include conveying, by the system, the strategy to at least one base station of the plurality of base stations. Other embodiments are disclosed.

Methods and systems are provided for increasing bandwidth efficiency in satellite communications. In some embodiments, a satellite communications method is provided that comprises receiving, at a gateway ground station and as part of a downlink transmission from a satellite, a combined source signal comprising a plurality of source signals with an overlapping bandwidth, and extracting, from the downlink transmission, information specifying at least one predetermined modulation method. The method also includes generating, based on the at least one predetermined modulation method and from the combined source signal, a plurality of estimated waveforms corresponding to the plurality of source signals, separating, by signal cancellation and using the plurality of estimated waveforms, the plurality of source signals from the combined source signal, and routing, with a terrestrial network, the plurality of source signals to one or more user ground terminals.

A receiving device includes: a receiver which receives a broadcast signal including an audio signal and obtains a baseband signal of a received signal; a demodulator which obtains the audio signal by demodulating the baseband signal; a middle frequency range detector which detects a signal level of a middle frequency component in a frequency range of the baseband signal; a high frequency range detector which detects a signal level of a high frequency component in the frequency range of the baseband signal; and a processing circuit which sets an effect amount of high-cut processing based on a level difference between the signal level of the middle frequency component and the signal level of the high frequency component. The receiving device further includes a high-cut filtering device which performs the high-cut processing on the audio signal in accordance with a set value of the effect amount.

A system that incorporates aspects of the subject disclosure may perform operations including, for example, obtaining uplink information that describes a configuration for uplink wireless communications by a communication device, wherein the uplink information comprises a first assignment of a first resource block to the communication device for transport of control information as a physical uplink control channel (PUCCH); performing a first Signal to Interference plus Noise Ratio (SINR) measurement of the PUCCH; initiating a first corrective action responsive to detecting the first SINR measurement being below a first SINR threshold; and initiating a second SINR measurement of the PUCCH to confirm the second SINR measurement is above the first SINR measurement. Other embodiments are disclosed.

Methods and systems are provided for increasing bandwidth efficiency in satellite communications. In some embodiments, a satellite communications method is provided that comprises receiving, at a satellite and from a plurality of user ground terminals, a plurality of source signals, wherein each of the source signals are modulated according to at least one source modulation method, and further receiving, at a satellite and from a plurality of user ground terminals, a plurality of information signals corresponding to the plurality of source signals. The method further includes combining, at the satellite, the plurality of source signals into a combined source signal with an overlapping bandwidth, wherein each of the source signals are further modulated according to at least one predetermined modulation method before they are combined, and transmitting, by a downlink transmission from the satellite to a gateway ground station, the combined source signal.

A tunable filter is described where the frequency response as well as bandwidth and transmission loss characteristics can be dynamically altered, providing improved performance for transceiver front-end tuning applications. The rate of roll-off of the frequency response can be adjusted to improve performance when used in duplexer applications. The tunable filter topology is applicable for both transmit and receive circuits. A method is described where the filter characteristics are adjusted to account for and compensate for the frequency response of the antenna used in a communication system.

A broadcast receiver for processing of a broadcast signal, and a method for processing a broadcast signal by a broadcast receiver. The broadcast receiver includes: a receiver unit that is set up to receive the broadcast signal and convert the received broadcast signal into a digital data signal; a bandwidth filter unit that is set up to filter the data signal with a variable filtering bandwidth; a demodulation unit that is set up to demodulate the filtered data signal; a signal content analysis unit that is set up to determine a signal content of the demodulated data signal; a signal quality analysis unit that is set up to determine a signal quality of the data signal; and a bandwidth regulation unit that is set up to regulate the filtering bandwidth depending on the signal content and the signal quality.