Abstract: Systems and methods for dynamic allocation of spectrum among cross-interfering radio nodes of wireless communications systems are disclosed. Multiple radio nodes may be deployed within a geographical region, and each radio node may support wireless communication over spectrum in which access is arbitrated by an external service not under the control of the operator of the radio node. Each radio node is configured to detect radio conditions which may indicate coexistence between the radio node and a neighboring radio node. A network entity associated with the radio node obtains radio condition information and determines a coexistence status between the radio node and the neighboring radio node, such as whether coexistence with the neighboring radio node is tolerable or intolerable. The network entity reports an indication of the coexistence status to a spectrum server, and the spectrum server reallocates the spectrum among the radio nodes.

Abstract: Fiber optic equipment that supports independently translatable fiber optic modules and/or fiber optic equipment trays containing one or more fiber optic modules is disclosed. In some embodiments, one or more fiber optic modules are disposed in a plurality of independently translatable fiber optic equipment trays which are received in a tray guide system. In this manner, each fiber optic equipment tray is independently translatable within the guide system. One or more fiber optic modules may also be disposed in one or more module guides disposed in the fiber optic equipment trays to allow each fiber optic module to translate independently of other fiber optic modules in the same fiber optic equipment tray. In other embodiments, a plurality of fiber optic modules are disposed in a module guide system disposed in the fiber optic equipment that translate independently of other fiber optic modules disposed within the module guide system.

Abstract: Embodiments relate to providing simultaneous digital and analog services in optical fiber-based distributed radio frequency (RF) antenna systems (DASs), and related components and methods. A multiplex switch unit associated with a head-end unit of a DAS can be configured to receive a plurality of analog and digital downlink signals from one or more sources, such as a service matrix unit, and to assign each downlink signal to be transmitted to one or more remote units of the DAS. In one example, when two or more downlink signals are assigned to be transmitted to the same remote unit, a wave division multiplexer/demultiplexer associated with the multiplex switch unit can be configured to wave division multiplex the component downlink signals into a combined downlink signal for remote side transmission and to demultiplex received combined uplink signals into their component uplink signals for head-end side transmission.

Abstract: Design tools and methods of use for designing, ordering, and providing manufacturing and installation instructions for waveguide system networks include a system design tool including a location selection module to determine a selected location, a satellite imagery component to provide an image based on the selected location, an overlay module to overlay a design on the image, and a customization module to customize the design. The system design tool includes one or more design modules to at least one of automatically output and build via user input one or more design options based on the image, and a design customization module to select the design from the one or more design options. The system design tool includes a positioning module to set a pair of connectivity points such that a cable length may be automatically calculated based on a calculated distance between the pair of connectivity points.

Abstract: A ferrule-based fiber optic connectors having a ferrule retraction balancing characteristic for preserving optical performance are disclosed. The fiber optic connector comprises a connector assembly, a connector sleeve assembly and a balancing resilient member. The connector assembly comprises a ferrule and a resilient member for biasing the ferrule forward and the connector sleeve assembly comprises a housing and a ferrule sleeve, where the connector assembly is at least partially disposed in the passageway of the housing and the ferrule of the connector assembly is at least partially disposed in the ferrule sleeve. The balancing resilient member biases the housing to a forward position with the biasing resilient member having a predetermined resilient force that is greater than the friction force required for displacement of the ferrule within the ferrule sleeve.

Abstract: A cable-stranding apparatus includes a stationary guide, a motor, a driven guide, and a controller electrically coupled to the motor. The stationary guide is configured to guide strand elements in a spaced-apart configuration and to pass a core member. The motor is operatively associated with a guide driver. The driven guide is disposed at least partially within the guide driver so as to rotate therewith. The driven guide is configured to receive the strand elements from the stationary guide, individually guide the strand elements received from the stationary guide, and to further pass the core member. The controller is electrically coupled to the motor and configured to control the rotational speed and direction of the motor.

Abstract: Power distribution modules are configured to distribute power to a power-consuming component(s), such as a remote antenna unit(s) (RAU(s)). By “hot” connection and/or disconnection, the power distribution modules can be connected and/or disconnected from a power unit and/or a power-consuming component(s) while power is being provided to the power distribution modules. Power is not required to be disabled in the power unit before connection and/or disconnection of power distribution modules. The power distribution modules may be configured to protect against or reduce electrical arcing or electrical contact erosion that may otherwise result from “hot” connection and/or connection of the power distribution modules.

Abstract: A method of coordinating a plurality of radio access networks (RANs) includes aggregating, with a gateway, communications interfaces between a plurality of RANs and a packet core network through the gateway. A plurality of radio nodes (RNs) in each of the RANs is communicatively coupled to the gateway and to user equipment (UE) devices associated with the RNs in each of the RANs. The gateway also controls and coordinates mobility of the UE devices within and among the RANs. In addition, the gateway acts as a virtual enhanced NodeB (eNB) to the packet core network, thereby hiding the aggregated communications interfaces from the packet core network.

Abstract: Distributing higher currents demanded by a power consuming load(s) exceeding overcurrent limits of a current limiter circuit for a power source in a power distribution system. The power distribution system receives and distributes power from the power source to a power consuming load(s). The power distribution circuit is configured to limit current demand on the power source to not exceed a designed source current threshold limit. The power distribution circuit includes an energy storage circuit. The power distribution circuit is configured to charge the energy storage circuit with current supplied by the power source. Current demanded by the power consuming load(s) exceeding the source current threshold limit of the power source is supplied by the energy storage circuit. Thus, limiting current of the power source while supplying higher currents demanded by power consuming load(s) exceeding the source current limits of the power source can both be accomplished.

Abstract: Power management for remote units in a wireless distribution system. Power can be managed for a remote unit configured to power modules and devices that may require more power to operate than power available to the remote unit. For example, the remote unit may be configured to include power-consuming remote unit modules to provide communication services. As another example, the remote unit may be configured to provide power through powered ports in the remote unit to power-consuming devices. Depending on the configuration of the remote unit, the power-consuming remote unit modules and/or power-consuming devices may demand more power than is available at the remote unit. In this instance, the power available at the remote unit can be distributed to the power-consuming modules and devices based on the priority of services desired to be provided by the remote unit.

Abstract: A cleaning nozzle includes an outer housing having a central axis and an inner surface that defines an outer housing interior. An inner housing resides within the outer housing interior along the central axis and has an inner surface that defines an inner flow channel. The inner flow channel supports flow of the cleaning fluid and has a converging taper and a flow disrupter element. The nozzle assembly may include an adapter that receives a front end of the nozzle and that also holds a ferrule that supports an optical fiber having an end face. The nozzle assembly allows the nozzle to direct a jet stream of cleaning fluid to the ferrule end face and the fiber end face. The flow disrupter causes the jet stream to have a time-varying direction that enhances the cleaning of the ferrule end face and the optical fiber end face.

Abstract: Automatic cell discovery of a source radio access network (RAN) cell by a neighboring, target RAN by initiating a fake handover of a user equipment (UE) from a source RAN cell to a target RAN. A source RAN cell initiates a handover request using handover signaling to the target RAN(s). The handover request is a fake handover request without actual intention of handing over UE to the target RAN. The source RAN cell includes information in initiated handover request that can be used by target RAN to discover source RAN cell. The handover request will fail, because the handover request is not for any actual UE moving from the source RAN cell to the target RAN. However, the target RAN becomes aware of the source RAN cell as a result of this process and can add the source RAN cell (e.g., its EARFCN) to a list of its neighboring cells.

Abstract: Power management techniques in distributed communication systems are disclosed herein. Related components, systems, and methods are also disclosed. In embodiments disclosed herein, services within a remote unit of the distributed communication system are selectively activated and power consumption is measured. From at least two measurements, a maximum power available may be calculated and compared to power requirements of the remote unit.

Abstract: Embodiments of the disclosure are directed to a retrofit kit for a telecommunications cabinet that is configured to house copper electronic equipment. The kit includes a fiber optic apparatus configured to be mounted in an interior of the telecommunications cabinet and a retrofit door configured to be mounted to the telecommunications cabinet to cover the interior. The retrofit door includes a front surface, a plurality of sidewalls extending from the front surface, and a rear surface extending inward from the plurality of sidewalls. The rear surface is spaced apart from the front surface and defines an opening into a cavity of the retrofit door. The fiber optic apparatus and the retrofit door are configured such that when the fiber optic apparatus and the retrofit door are mounted, the at least one cavity of the retrofit door provides volume to accommodate the fiber optic apparatus.

Abstract: Distributed antenna systems provide location information for client devices communicating with remote antenna units. The location information can be used to determine the location of the client devices relative to the remote antenna unit(s) with which the client devices are communicating. A location processing unit (LPU) includes a control system configured to receive uplink radio frequency (RF) signals communicated by client devices and determines the signal strengths of the uplink RF signals. The control system also determines which antenna unit is receiving uplink RF signals from the device having the greatest signal strength.

Abstract: High-connection density and bandwidth fiber optic apparatuses and related equipment and methods are disclosed. In certain embodiments, fiber optic apparatuses are provided and comprise a chassis defining one or more U space fiber optic equipment units. At least one of the one or more U space fiber optic equipment units may be configured to support particular fiber optic connection densities and bandwidths in a given 1-U space. The fiber optic connection densities and bandwidths may be supported by one or more fiber optic components, including but not limited to fiber optic adapters and fiber optic connectors, including but not limited to simplex, duplex, and other multi-fiber fiber optic components. The fiber optic components may also be disposed in fiber optic modules, fiber optic patch panels, or other types of fiber optic equipment.

Abstract: A method is provided for synchronizing timing in phase and frequency of clocks associated with a plurality of radio nodes (RNs) in a small cell radio access network (RAN) having an access controller operatively coupled to each of the RNs. In accordance with the method, a donor list is generated for each given RN in the RAN. The donor list represents an ordered list of potential wireless access points that are able to serve as a source of a wireless sync signal for the given RN. The donor lists are distributed to the respective RNs. An access point is selected by each of the RNs from their respective donor lists to use as a sync signal source. Each of the RNs synchronize their respective clocks in phase and frequency using wireless sync signals received from the respective selected access points.

Abstract: A fiber optic connector comprising a connector body that can receive the optical cable and a complimentary receptacle. Fiber optic connector comprises a ferrule body having a passageway to guide an optical fiber of the optical cable, and a compress body being arranged between the connector body and the ferrule body. The compress body has a hollow area to receive the optical fiber. The compress body is configured to exert a force to the ferrule body so that the end face of the ferrule body is moved in a forward direction away from the connector body, when an external force is applied to an outer surface of the compress body. Methods of making assemblies are also disclosed.

Abstract: A ferrule-based fiber optic connectors having a ferrule retraction balancing characteristic for preserving optical performance are disclosed. The fiber optic connector comprises a connector assembly, a connector sleeve assembly and a balancing resilient member. The connector assembly comprises a ferrule and a resilient member for biasing the ferrule forward and the connector sleeve assembly comprises a housing and a ferrule sleeve, where the connector assembly is at least partially disposed in the passageway of the housing and the ferrule of the connector assembly is at least partially disposed in the ferrule sleeve. The balancing resilient member biases the housing to a forward position with a the biasing resilient member having a predetermined resilient force that is greater than the friction force required for displacement of the ferrule within the ferrule sleeve.

Abstract: Power management techniques in distributed communication systems in which the power available at a remote unit (RU) is measured and compared to the power requirements of the RU. Voltage and current are measured for two dummy loads at the RU and these values are used to solve for the output voltage of the power supply and the resistance of the wires. From these values, a maximum power available may be calculated and compared to power requirements of the RU.