Abstract: Disclosed herein is a method of transmitting a signal of a user equipment (UE) in a wireless communication system. The method includes generating an optical signal related to data transmission, combining an electrical signal for the data with the optical signal, and transmitting a combined signal.

Abstract: A device capable of and method for communicating auxiliary data over an alarm network tandem line, whereby noise signals are filtered. The noise signals have an amplitude less than a first threshold. Further, a tandem signal is transmitted or received via a tandem port, wherein the signal transmitted or received is substantially synchronous with a noise signal peak or the transmission does not contain a period greater than the first duration. The period is measured as between two of: one or more disruption point, packet beginning, and packet finish, adjacently disposed. The disruption point is a point where the tandem signal is below a first amplitude threshold. Further, the combined amplitude of the tandem signal and the noise signal is greater than the first threshold.

Abstract: A method of interference suppression with intermodulation distortion mitigation includes processing an RF signal comprising an RF signal of interest and an RF interfering signal to produce a first and second RF drive signal each with a desired RF interference signal power and having a 90 degree relative phase. The first RF drive signal is imposed onto a first optical signal with a modulator to generate a first modulated optical signal so that the modulator has a large-signal behavior that is characterized by a Bessel function of the first kind J1(?), wherein the desired power at a frequency of the interference signal of the first drive signal is chosen to correspond to a zero of the Bessel function of the first kind J1(?).

Abstract: Disclosed herein is a system comprising a set of wireless communication nodes that are configured to operate as part of a wireless mesh network. Each respective wireless communication node may be directly coupled to at least one other wireless communication node via a respective short-hop wireless link, and at least a first pair of wireless nodes may be both (a) indirectly coupled to one another via a first communication path that comprises one or more intermediary wireless communication nodes and two or more short-hop wireless links and (b) directly coupled to one another via a first long-hop wireless link that provides a second communication path between the first pair of wireless communication nodes having a lesser number of hops than the first communication path. A fiber access point may be directly coupled to a first wireless communication node of the set of wireless communication nodes.

Abstract: A reflection-type coherent optical communication system combined with unidirectional optical signal amplification, comprises a polarization controller, a polarization beam splitter, a polarization maintaining optical circulator, an In-line polarizer, an optical modulator, a photoelectric converter, an electrical comparator, an optical amplifier, a laser, a coupler, a reflection end and a coherent receiver. A light source is disposed at a receiving end, and the laser emits an optical carrier. The optical carrier is transmitted through the coupler and an optical fiber. Thereafter, the polarization state of the optical carrier is controlled by two ways, the optical carrier passes through the polarization controller in a first way, and two beams of light are output by the polarization beam splitter. A beam of light with high-power is modulated through a first branch, and the modulation signal is returned along an original optical path.

Abstract: A lighting system includes a first lighting fixture that includes a first microphone and a first transmitter. The first transmitter is configured to transmit a first digital audio stream generated based on a sound. The lighting system further includes a second lighting fixture that includes a second microphone and a second transmitter. The second transmitter is configured to transmit a second digital audio stream generated based on the sound, where the sound is received by the first microphone and by the second microphone. The lighting system also includes a central processor that can process the first digital audio stream and the second digital audio stream to identify the sound.

Abstract: A cable network test instrument for isolating a source of noise in a cable network system is disclosed.

Abstract: Systems and methods that can utilize the detection of human occupancy without fiducial elements to control an environmental, security, or other system within a structure. The systems and method can initiate communication to a human user directly, and can alter their operation based on human presence.

Abstract: An optical wireless power transfer system includes a transmission module, which includes a main light source configured to output a main light; a transmitting processor configured to modulate the main light to have a first modulation; a beam splitter configured to pass the main light as a power light; and a reception module. The reception module includes a retro-reflector configured to retro-reflect the main light back to the transmission module; and a receiving processor configured to control the retro-reflector to reflect the main light to have a second modulation based on a power generated by the main light. Further, the beam splitter is further configured to reflect the main light having the second modulation to a first photodiode included in the transmission module.

Abstract: A constellation of satellites includes a first plurality of satellites orbiting at a first inclination, wherein the first plurality of satellites are each in a discrete planar orbit to form a first snake of satellites, the first snake of satellites including adjacent satellites in adjacent orbits having adjacent RAAN (Right Ascension of the Ascending Node).

Abstract: A transmitter. In some embodiments, the transmitter has an electrical input and an optical output. The transmitter may include a light source; an optical amplitude modulator having an optical input connected to the light source, a modulation input connected to the electrical input, and an output; and a first gated optical comparator, having a sampling clock input, an analog input connected to the output of the optical amplitude modulator, and an output. The first gated optical comparator may be configured to generate, for each cycle of an optical sampling clock signal received at the sampling clock input, a one-bit digital representation of an analog optical signal received at the analog input.

Abstract: A doubly resonant electro-optic converter is provided. An optical resonator and a microwave resonator are disposed such that fields from the two resonators can interact in an electro-optic active medium. The optical resonator is a planar photonic crystal optical resonator, and the microwave resonator is at least partially superconducting in operation. The active medium has a second order nonlinearity capable of generating a sum frequency signal and/or a difference frequency signal from the optical and microwave fields. The resulting structure has both quantum and classical applications.

Abstract: Digital information can be carried on the fiber leg of an access network using binary modulation. Binary modulated data received at an O/E node can then be modulated onto an analog waveform using quadrature amplitude modulation or some other technique for modulating an analog waveform and transmitted over, for example, the coaxial leg of the network. The O/E node may also receive an analog signal, over the coaxial leg, modulated to carry upstream data from subscriber devices. The O/E node may demodulate the upstream signal to recover the upstream data and forward that upstream data over the fiber leg using a binary modulated optical signal.

Abstract: A device includes an optical fiber bundle having at least one optical data fiber and at least three optical tracking fibers, a mirror package configured to direct an incoming optical beam to the optical fiber bundle, at least three detectors, each detector corresponding to one of the at least three optical tracking fibers, the at least three detectors configured to receive portions of the incoming optical beam from the corresponding optical tracking fibers and convert the portions of the incoming beam to electrical tracking signals, and a controller configured to receive the electrical tracking signals from the at least three detectors and generate a feedback control based on the electrical tracking signals to control a position of the mirror package.

Abstract: A method to mitigate an antenna multipath, Rayleigh fading effect. The method includes coupling an antenna on top of a structure, wherein the structure is covered by a radio frequency (RF) radiation absorbing layer, wherein the structure has a shape such that any reflecting surface of the structure is perpendicular to an incoming RF signal. The method also includes directing the incoming RF signal towards the structure, wherein undesired direct or reflected RF signals are either absorbed by the RF radiation absorbing layer or deflected back to a source of the RF signal, thereby avoiding interference of the undesired RF signal with a desired RF signal aimed at the antenna.

Abstract: Embodiments of the disclosure relate to a transceiver circuit employing shared digital signal processing circuitry for communicating radio frequency (RF) analog communications signals received by a remote unit in a wireless distribution system (WDS). A transceiver circuit includes downlink digital signal processing circuitry that receives and processes a downlink digital communications signal(s) having a first downlink digital baseband signal and a second downlink digital baseband signal. A first downlink analog signal path and a second downlink analog signal path share the downlink digital signal processing circuitry. The first downlink analog signal path generates a first downlink analog RF communications signal. The second downlink analog signal path generates a second downlink analog RF communications signal.

Abstract: Supporting analog remote antenna units (RAUs) in digital distributed antenna systems (DASs) using analog RAU digital adaptors. In the digital DAS disclosed herein, a head-end equipment (HEE) is configured to exchange digital communications signals with a plurality of digital RAUs. The digital DAS is also configured to distribute digital communications signals to an analog RAU(s), which is not inherently capable of processing the digital communications signals. In this regard, an analog RAU digital adaptor(s) is provided in an analog remote unit to serve as a digital interface for the analog RAU(s). The analog RAU digital adaptor(s) is configured to provide conversions between the digital communications signals and analog RF communications signals. By providing the analog RAU digital adaptor as the digital interface for the analog RAU(s), the digital DAS can be configured to compatibly communicate with the analog RAU(s) and the digital RAU(s).

Abstract: Optical fiber-based wireless systems and related components and methods are disclosed. The systems support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The systems incorporate various functions, such as optical network terminal (ONT), splitter, and local powering, in antenna coverage areas.

Abstract: An antenna for generating an arbitrarily directed Bessel beam, including a beam-forming plane and a feeding horn, the beam-forming plane is a dual-layer dielectric substrate structure having a beam focusing function, including: a printed circuit bottom layer, a high-frequency dielectric substrate lower layer, a printed circuit middle layer, a high-frequency dielectric substrate upper layer, and, a printed circuit upper layer; the printed circuit bottom layer, the high-frequency dielectric substrate lower layer, the printed circuit middle layer, the high-frequency dielectric substrate upper layer, and the printed circuit upper layer are co-axially stacked from the bottom to the top: the beam-forming plane is entirely divided into periodically arranged beam-forming units by a plurality of meshes, and each beam-forming unit consists of printed circuit upper, middle and lower metal patches of which centers are on the same longitudinal axis, the high-frequency dielectric substrate lower layer and the high-frequenc

Abstract: An apparatus and method of propagating wireless signals through an impairment medium using a penetrator device within a wireless communication network is discussed herein. The apparatus and method includes transmitting a first radio frequency (RF) signal from a first point within the wireless communication network and receiving the first RF signal at a first unit of the penetrator device. The method further includes converting, by the first unit of the penetrator device, the RF signal into an optical signal and transmitting the optical signal from the first unit of the penetrator device to a second unit of the penetrator device through the impairment medium. The method also includes converting, by the second unit of the penetrator device, the optical signal into a second RF signal and transmitting, by the second unit of the penetrator device, the second RF signal to a second point within the wireless communication network.

Abstract: A device uses gated retro-reflectors to transmit uplink data in a visible light communication (VLC) system. The gated retro-reflector includes a retro-reflector and a gating shutter between the retro-reflector and a VLC light source. A light sensor receives VLC data at regular intervals in which a light pulse received during one of the intervals represents a first downloaded symbol and absence of a light pulse during another one of the intervals represents a second downloaded symbol. A controller controls the gating shutter to send uplink data from the device responsive to each received VLC light pulse. The controller opens the gating shutter during the reception of a VLC light pulse to upload a first uploaded symbol and closes the gating shutter during the reception of a VLC light pulse to upload a second uploaded symbol.

Abstract: Detecting an outage in an alternating current (AC) electrical network. One or more time-stamped and location-stamped data packets, each data packet including magnetic sensor data collected by one or more non-contact magnetic sensors in a mobile device in proximity to the AC electrical network are received. Based on the magnetic sensor data, it is determined that an outage exists in the AC electrical network.

Abstract: An information processing apparatus is configured to acquire first communication amount information indicating a first communication amount per unit period of time of each of a plurality of flows at a first timing, specify a predictive communication amount per the unit period of time of each of the plurality of flows at a second timing later than the first timing, acquire second communication amount information indicating a second communication amount per the unit period of time of each of the plurality of flows at the second timing, specify a difference between the predictive communication amount and the second communication amount, specify a priority degree of each of the plurality of flows based on the difference and a topology value determined for each of the plurality of flows, and analyze the data traffic of a specific flow selected from the plurality of flows based on the priority degree.

Abstract: A method of RF signal processing comprises receiving an incoming RF signal at each of a plurality of antenna elements that are arranged in a first pattern. The received RF signals from each of the plurality of antenna elements are modulated onto an optical carrier to generate a plurality of modulated signals that each have at least one sideband. The modulated signals are directed along a corresponding plurality of optical channels with outputs arranged in a second pattern corresponding to the first pattern. A composite optical signal is formed using light emanating from the outputs of the plurality of optical channels. Non-spatial information contained in at least one of the received RF signals is extracted from the composite signal.

Abstract: A channel adjustment method, apparatus and system. The method includes: an optical line terminal (OLT) receives a channel bonding capability parameter reported by an optical network unit (ONU) and supported by the ONU; the OLT determines a channel bonding capability parameter of a to-be-bonded channel of the ONU according to the channel bonding capability parameter, a serving application of the ONU and/or a data transmission state; and the OLT sends, to the ONU, first bonding control information carrying the channel bonding capability parameter of the to-be-bonded channel of the ONU and used for instructing the ONU to adjust the bonded channel.

Abstract: Embodiments disclosed in the detailed description include analog distributed antenna system (DAS) supporting distribution of digital communications signals interfaced from a digital signal source and analog radio frequency (RF) communications signals. Analog RF communications signals received from analog RF signal sources are distributed in the analog DAS without being digitized. The analog DAS is also configured to interface with digital signal sources and compatibly distribute digital communications signals. Hence, a digital signal interface in head-end equipment (HEE) is configured to convert downlink digital communications signals to downlink analog RF communications signals for distribution to a plurality of remote units. The digital signal interface is also configured to convert uplink analog RF communications signals to uplink digital communications signals for distribution to the digital signal source(s).

Abstract: A radio frequency (RF) transmitter includes a set of input ports to receive baseband, a set of filter banks for each input port that includes a plurality of digital polyphase interpolation filters, and a set of oscillators banks, wherein each oscillator bank includes a plurality of polyphase Digital Direct Synthesizer (DDS) corresponding to the plurality of digital polyphase interpolation filters. The RF transmitter includes a set of mixer banks to mix corresponding sequences of samples of digital waveform, a parallel digital combiner to combine in-phase sequences of interpolated baseband phased samples, and a pulse encoder to modulate and encode the plurality of sequences of multiband upconverted samples. The RF transmitter converts a plurality of encoded multi-band signals into a RF bitstream and an E/O interface to convert the RF bitstream.

Abstract: An aspect of the disclosure provides a system for transmitting a radio frequency (RF) signal from a source to a destination. Such a system includes an RF signal source configured to produce an RF signal at a transmission frequency. The system further includes an optical transmission path for optically transmitting the RF signal towards the destination. The system also includes a feedback path for transmitting a feedback signal received proximate the destination towards the RF signal source. The feedback path includes a frequency shifter for shifting the frequency of the feedback signal to a feedback frequency different than the transmission frequency.

Abstract: Techniques for determining a position of a mobile device using visible light communication signals are provided. An example device includes memory and a processor configured to in response to a determination that at least one first image of a plurality of images stored in the memory is of a modulated light signal transmitted by a light source and comprising coded information, determine a spatial location of a reference point of the light source based on the coded information, in response to a determination that at least one second image of the plurality of images is of an unmodulated light signal emanating from the light source, determine an image location of the reference point of the light source in the at least one second image, and determine a position of the mobile wireless communication device based on the image location of the reference point and the spatial location of the reference point.

Abstract: Aspects of the present disclosure describe systems, methods, and structures that advantageously provide hybrid free-space optical (FSO)-radio frequency (RF) communication links (HFRCLs) that enable building integrated software-defined network (SDN) infrastructure capable of integrating ultra-high-throughput satellite networks, composite wireless infrastructures, heterogeneous networks (HetNets), hybrid networks, satellite networks, and fiber-optics networks—among others.

Abstract: A remote antenna unit for a distributed antenna system is provided. The remote antenna unit includes a remote unit processor and a multifunctional port. The remote unit processor is configured to control communication operations of the remote antenna unit. The multifunctional port is configured to interface at least one of communications between at least one component of an extension card and the remote unit controller and power to the extension card.

Abstract: A technique relates to communication of a quantum state. Polarization hardware is configured to receive a polarization encoded qubit and split the polarization encoded qubit into two qubits. A converter is coupled to the polarization hardware, and the converter is configured to convert the two qubits into a form suitable for a CNOT gate. The CNOT gate is configured to receive the two qubits such that a measurement result of a CNOT operation of the CNOT gate determines success of the communication of the quantum state.

Abstract: Disclosed herein are an apparatus and method for detecting an upstream RF signal based on a preamble. The apparatus for detecting an upstream RF signal based on a preamble includes an analog-to-digital converter unit for receiving an RF analog signal and converting the same into an RF digital signal; a down-converter unit for converting the RF digital signal into a baseband digital signal; a packet detection unit for performing packet detection by performing an operation on the baseband digital signal and preset differential preamble signals; and a timing calculation unit for generating timing information of a terminal device based on the baseband digital signal and time information generated through the packet detection.

Abstract: Embodiments disclosed herein include distributed antenna systems (DASs) supporting expanded, programmable communications services distribution to remote communications service sector areas. In one embodiment, the DAS includes a first programmable switch for distributing downlink communications signals into one or more communications service sector sets. The DAS further includes a second programmable switch configured to distribute the one or more communications service sector sets to one or more remote communications service sector areas. A configurable extender module is also included to provide expanded routing of communications service sector sets in the DAS.

Abstract: Segregating a node port experiencing ingress. A node that provides a service to a plurality of cable modems may have a plurality of node ports. The node may be a Remote PHY Node or a Remote MACPHY node. In response to detecting that a particular node port of the node is experiencing ingress, the assignment of node ports to upstream device ports are adjusted so that the particular node port experiencing ingress is not be assigned to the same upstream device port as any other node port. In further response to detecting ingress at the particular node port, all node ports assigned to the same upstream device port are caused to be assigned to the same downstream device port. By segregating the node port experiencing the ingress in this manner, the impact of that ingress can be mitigated or eliminated with respect to the other node ports of that node.

Abstract: A coherent optical reception device includes a local oscillation laser that supplies laser light, a coherent optical reception front-end unit that receives a multi-level modulated optical signal, demodulates the optical signal on the basis of the laser light, and converts a demodulated optical signal into an electrical analog signal, an analog-to-digital converter that converts the analog signal into a digital signal, a compensation unit that compensates for an influence of dispersion due to a wavelength or a polarized wave of the optical signal and recovers a carrier phase of the digital signal, a constellation distortion compensation unit that compensates for constellation distortion of the multi-level modulation included in the digital signal in which an influence of dispersion is compensated for by the compensation unit, and an error correction decoding unit that performs error correction of the digital signal in which the constellation distortion is compensated for.

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: Optical fiber-based wireless systems and related components and methods are disclosed. The systems support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The systems incorporate various functions, such as optical network terminal (ONT), splitter, and local powering, in antenna coverage areas.

Abstract: Novel tools and techniques for provisioning a wireless base station functionality at a terminal enclosure are provided. A system includes a first network device, first transceiver, first antenna, second network device, second transceiver, and a second antenna. The first network device may be communicatively coupled to a first network via a first medium and a second medium. The first network device may include a first transceiver coupled to the first network via the first medium, and a first antenna coupled to the first transceiver. The second network device may be coupled to a second network, and include a second transceiver coupled to a second antenna. The first and second network devices may be configured to communicate wirelessly, wherein data communicated from the second network device to the first network device is transmitted to the first network via the first medium.

Abstract: A method of configuring optical network nodes (6a, 6b) between a plurality of Remote Radio Units (4a, 4b) and at least one Baseband Unit (2a, 2b). The method comprises monitoring a bandwidth demand of each Remote Radio Unit (4a, 4b), and calculating a routing configuration of the nodes to connect at least one Remote Radio Unit on a tree arrangement to a said Baseband Unit. The calculating (82) the routing configuration is based on at least one connection requirement between the Remote Radio Units and the Baseband Units and the bandwidth demand of each Remote Radio Unit. The method further comprises dynamically configuring one or more optical network nodes to adapt the routing configuration from a said Remote Radio Unit to a said Baseband Unit, according to the calculated routing configuration.

Abstract: Various embodiments concern a wireless accessory bus for a user device that enables accessories to be easily and securely attached to the user device. More specifically, the wireless accessory bus enables data to be wirelessly transmitted between the accessory and the user device when the accessory and the user device are located within close proximity to one another (e.g., when the accessory is securely attached to the wireless accessory bus). Power could also be wirelessly transferred from the user device to the accessory (or vice versa). In some embodiments, the user device includes fastening component(s) (e.g., magnets) that allow the user device and the accessory to be magnetically secured to one another. The accessory typically enables the user device to readily utilize a new functionality or an improvement to an existing functionality.

Abstract: An apparatus and a method for converting an upstream radio frequency (RF) signal to a digital signal and transmitting the digital signal via an Internet protocol (IP) packet based on an optical network in a cable broadcasting network is provided. The apparatus for transmitting an upstream RF signal includes a detector configured to detect an upstream RF signal, and a transmitter configured to digitize the detected upstream RF signal and transmit the digitized RF signal to a headend via an IP packet.

Abstract: A cable modem is provided that comprises: a base station interface; a cable network interface that connects the cable modem to a cable modem termination system and one or more other cable modems, the cable network interface communicating using orthogonal frequency-division multiple access (OFDMA); a memory storage comprising instructions; and one or more processors in communication with the cable network interface, the base station interface, and the memory storage. The one or more processors execute the instructions to: receive, via the base station interface, coordination data addressed to a first cable modem of the one or more other cable modems; receive, from the cable modem termination system via the cable network interface, an allocation of a resource block in an OFDMA symbol; and transmit, to the first cable modem via the cable network interface, in the allocated resource block in the OFDMA symbol, the coordination data.

Abstract: A technique relates to an assembly for a quantum computing device. A quantum bus plane includes a first set of recesses. A readout plane includes a second set of recesses. A block is positioned to hold the readout plane opposite the quantum bus plane, such that the first set of recesses opposes the second set of recesses. A plurality of qubit chips are included where each has a first end positioned in the first set of recesses and has a second end positioned in the second set of recesses.

Abstract: Radio-over-fiber (ROF) antenna extender systems and methods are disclosed for high speed train communications which utilize cellular networks as backhauls to avoid the expensive capital expenditure involved in providing broadband Internet services in high speed trains. Employing ROF technology, on-roof antennas are deployed in strategic configurations to address the drawbacks of utilizing cellar networks as backhauls. The systems and methods provide broadband Internet service to a train and include a plurality of antennas mounted to an exterior of the train and operable to communicate with a cellular network, wireless access points mounted to the train, and a control system operably coupled to the plurality of antennas and to the wireless access points, wherein the control system is operable to receive and process data received from the plurality of antennas and the one wireless access points.

Abstract: An apparatus and method for monitoring an individual premise return band at the side of the home, in a pedestal TAP, or in an aerial TAP is disclosed. The apparatus may be configured to be connected one to eight homes to analyze the return band spectrum, communicate this spectrum to a server for storage and/or alarm, and/or take action when the spectrum exceeds predefined limits or based on instructions received from a server.

Abstract: An apparatus and method of propagating wireless signals through an impairment medium using a penetrator device within a wireless communication network is discussed herein. The apparatus and method includes transmitting a first radio frequency (RF) signal from a first point within the wireless communication network and receiving the first RF signal at a first unit of the penetrator device. The method further includes converting, by the first unit of the penetrator device, the RF signal into an optical signal and transmitting the optical signal from the first unit of the penetrator device to a second unit of the penetrator device through the impairment medium. The method also includes converting, by the second unit of the penetrator device, the optical signal into a second RF signal and transmitting, by the second unit of the penetrator device, the second RF signal to a second point within the wireless communication network.

Abstract: A wireless communications system includes a BBU, an optical multiplexer, M (greater than or equal to 2) first optical transceivers, and a wireless radio frequency apparatus, where the M first optical transceivers are provided between the BBU and the optical multiplexer, operating wavelengths of the M first optical transceivers are different from each other. The wireless radio frequency apparatus includes M RRUs, M second optical transceivers separately corresponding to the M first optical transceivers, and at least one optical splitter, where the M second optical transceivers are separately connected to the M RRUs, and an operating wavelength of a first optical transceiver matches an operating wavelength of a corresponding second optical transceiver. The M second optical transceivers are connected to a same optical fiber by the at least one optical splitter, and the optical fiber is connected to the optical multiplexer and one of the at least one optical splitter.

Abstract: According to an embodiment of the present invention, a network is provided. The network may include a first base transceiver station (BTS). The first BTS may be operable to provide a first signal including a plurality of first carriers. The network may also include a second BTS operable to provide a second signal including a plurality of second carriers. The network may also include a set of one or more digital access units (DAUs), each of the one or more DAUs being coupled to at least one of the first BTS or the second BTS. A set of one or more digital remote units (DRUs) may be included in the network, each of the DRUs being coupled to one of the one or more DAUs and operable to broadcast the first signal or the second signal.

Abstract: Aspects are generally directed to optical signal receivers and methods. In one example, a receiver includes a pump assembly configured to produce an encoded pump signal. The receiver includes an optical resonator positioned to receive an optical signal and the encoded pump signal, the optical resonator including an optical medium to accumulate resonant optical signal energy based on the optical signal, and the optical resonator being configured to emit output optical signal energy and disturb the output optical signal energy in response to a variation in the optical signal, the optical medium being further configured to modify a waveform shape of the output optical signal energy based on the encoded pump signal. The receiver further includes a detector to detect the output optical signal energy and determine a characteristic of the variation in the optical signal based on the waveform shape of the output optical signal energy.