A communication system includes a base station, at least one remote radio head, and at least one channel. The base station has at least two digital modulators adapted for modulating a first and a second incoming radio signal to obtain a first and a second quantized signal, a multiplexer for interleaving the quantized signals, and a transmitter adapted for transmitting the resulting quantized signal over the channel to the remote radio head. The remote radio head includes a receiver adapted for capturing the quantized signal, a clock extraction module adapted for converting the signal from the receiver into a clock signal, a demultiplexer for splitting the quantized signal using the clock signal to obtain at least two quantized signals, and a filter adapted for removing quantization noise from the quantized signal from the receiver or the demultiplexer.

In one aspect of the disclosure a communications network or topology is presented that includes one or more modular or adaptable smart pole assemblies. Each smart pole assembly can include a pole structure supporting a data-communications module and having a hollow interior through which a connectorized vertical cabling structure extends. Jumper cables can be provided to connect components associated with the data-communications module with the vertical cabling structure such that no cabling or wiring has to be removed or installed from the pole hollow interior when components are added, removed, or replaced. The vertical cabling structure or harness can include one or more of connectorized fiber optic cables, DC power cables, and connectorized Category 6 cables. The smart pole assembly can further include a fiber distribution hub within a base supporting the pole structure. The fiber distribution hub can provide a distribution point for multiple optical subscriber distribution cables for fiber-to-the-home distribution.

An optical beamforming device includes an RF front-end transmitting or receiving RF signals and an optical beamformer forming or compensating for a time delay for each of the plurality of channels based on the RF signals. The optical beamformer includes E/O converters converting the RF signals into optical signals, respectively, a linear modulator generating an optical modulation signal based on an RF input signal, a TTD array outputting an optical combined signal obtained by compensating for a time delay degree of the input optical signals or outputting output optical signals, in each of which a time delay is formed for each channel, by distributing the optical modulation signal, a photo detector generating an RF output signal to an RF back-end based on the optical combined signal, and O/E converters converting the output optical signals into RF signals, respectively.

It is detected of an interference of a reverse link communication in a feeder link of a communication relay apparatus, which tends to occur when the number of movable aerial-floating type communication relay apparatuses increases in the same area. A communication system comprises a plurality of movable aerial-floating type communication relay apparatuses that respectively include a relay communication station of performing a service-link radio communication with a terminal apparatus, plural gateway stations that respectively perform a feeder-link radio communication with the plurality of the communication relay apparatuses, and a common baseband processing apparatus connected to the plural gateway stations. The baseband processing apparatus detects an interference of the reverse link communication due to an interference wave from a relay communication station of another communication relay apparatus, the interference wave interfering with a signal wave from the relay communication station of the communication relay apparatus connected to the gateway station, based on plural reception signals received by the plural gateway stations.

An uplink transmission band and a downlink transmission band that are allocated to each of a plurality of users are determined based on allocation information indicating allocation of a frequency bandwidth available to each of the plurality of users, and are output as uplink transmission band allocation information and downlink transmission band allocation information, respectively. Based on the downlink transmission band allocation information, downlink signals output from a plurality of wireless control devices toward a plurality of wireless devices for each of the plurality of users, and the uplink transmission band allocation information are multiplexed, and the multiplexed signal is demultiplexed into downlink signals for each of the plurality of users and the uplink transmission band allocation information. Based on the demultiplexed uplink transmission band allocation information, the uplink transmission band allocated to each of the plurality of users is changed, and uplink signals output from the plurality of wireless devices toward the plurality of wireless control devices for each of the plurality of users are multiplexed according to the changed uplink transmission band and then, the multiplexed signal is demultiplexed into the uplink signals for each of the plurality of users.

A communication system transmits data signals between communication nodes. A first data signal is transmitted as an electromagnetic wave along a first data transmission path to a receiver using skywave propagation. A second data signal, identical to the first data signal, is transmitted to the receiver along a second data transmission path. The two data signals are compared at the receiver to determine any distortion caused by the skywave propagation. Data regarding the distortion is sent back to the transmitter so that subsequent transmitted data signals may be preconditioned when sent by skywave propagation.

The present disclosure relates to an optical line terminal, OLT, which is enabled to range optical network units, ONUs, in a point-to-multipoint optical network by detecting interference burst sequences transmitted by one or more joining ONUs during transmission of upstream data traffic from transmitting ONUs. The present disclosure further relates to an optical network unit, ONU, which is enabled to transmit, at a selected transmission time, an interference burst sequence including a sequence of pulses allowing the OLT to identify the ONU as a joining ONU.

A method for monitoring leakage in the aeronautical band of a high split HFC includes providing an apparatus for use in a patrol vehicle, the apparatus including a leak signal receiver coupled to a processor; setting a plurality of coefficients for an OUDP matched filter for a current location of the patrol vehicle; detecting peaks over a detection threshold at an output of the OUDP matched filter; and determining a presence of a leak based on a time stamp and a level of each detected peak. An upstream leak detection system is also described.

Disclosed are an SDBANS controller and associated orchestration system configured to implement scalable transport network slicing in an XGS-PON. Accordingly, the orchestration system configures the SDBANS controller for different regions and maps TN NSSI ID information to an OLT port of an SD-CPON OLT. The OLT port is allocated by the SDBANS controller.

A communication system includes a base station, at least one remote radio head, and at least one channel. The base station has at least two digital modulators adapted for modulating a first and a second incoming radio signal to obtain a first and a second quantized signal, a multiplexer for interleaving the quantized signals, and a transmitter adapted for transmitting the resulting quantized signal over the channel to the remote radio head. The remote radio head includes a receiver adapted for capturing the quantized signal, a clock extraction module adapted for converting the signal from the receiver into a clock signal, a demultiplexer for splitting the quantized signal using the clock signal to obtain at least two quantized signals, and a filter adapted for removing quantization noise from the quantized signal from the receiver or the demultiplexer.