Abstract: A high speed split receiver interface system for sensing a series of external signals, the system including: a series of remote radio head units for receiving a sensed signal in an analog electric form, each of the remote radio head units converting their sensed signal to a corresponding digital electrical form and then to a corresponding optical data form for dispatch over an optical data interconnection; at least one optical interconnect interconnecting each remote radio head unit with a baseband unit; a first baseband unit interconnecting the series of remote head units corresponding optical interconnects, and including a converter for conversion of the received optical signals to corresponding electrical digital form and down sampling the optical signals to corresponding down sampled signals, a memory store for storing the down sampled signals, and an external network interface for transmission of the saved signals to an external device.

Abstract: An information processing system includes an information processing device provided with a housing. The information processing device includes: a placement section that is disposed on an upper surface of the housing, the placement section on which a portable communication object is placed; a wireless communicator that wirelessly communicates with the communication object placed on the placement section; and a first protrusion that extends in a left-right direction along a lower end of the placement section. The placement section includes a placement surface sloping downward from a back side toward a front side, the placement surface on which the communication object is placed. A step, forming a gap between the placement surface and the communication object, is disposed in a lower end portion of the placement surface.

Abstract: A wireless communications system includes a base station configured to control a second wireless communication different from a first wireless communication by a control unit configured to control the first wireless communication; and a mobile station configured to be capable of performing data transmission between the mobile station and the base station, using one of the first wireless communication and the second wireless communication. When data is transmitted between the base station and the mobile station using the second wireless communication, a sender station among the base station and the mobile station performs transmission control of using an identifier of a bearer of the data transmitted to a receiver station among the base station and the mobile station and using correspondence information of the identifier and an access category that is QoS information in the second wireless communication to identify the access category of the data and transmit the data.

Abstract: Methods and apparatus are provided for calibrating an antenna array in a receiver. A training signal for calibrating the antenna array is injected into a data signal received on each receive path to generate combined signals on each receive path. The combined signals are equalized by respective equalizers. The coefficients of the equalizers are determined by comparing a feedback signal for each receive path with the equalized signal to estimate the impairment on each received path. The estimated impairment on each receive path is used to adapt the equalize coefficients for a respective equalizer to compensate for the impairment. After equalization, an estimate of the observed training signal on each receive path is subtracted from the equalized signal for the same receive path to generate estimates of the received data signals for demodulation and decoding.

Abstract: A method and an apparatus for receiving a common public radio interface (CPRI) data stream, a method and an apparatus for receiving an Ethernet frame, and a system, where a first network apparatus receives a first CPRI data stream using a CPRI of the first network apparatus, where the first network apparatus generates a segment of the first CPRI data stream according to the first CPRI data stream, the first network apparatus generates an Ethernet frame, where the Ethernet frame includes the segment of the first CPRI data stream and a CPRI data identifier, and the CPRI data identifier indicates that the Ethernet frame carries CPRI data, and the first network apparatus sends the Ethernet frame to a second network apparatus using an Ethernet interface of the first network apparatus.

Abstract: Loop timing is performed in a Reconciliation Sublayer (RS) so that the transmit clock frequency can be adjusted to be equal to the receive clock frequency for the entire PHY (including the physical coding sublayer (PCS)). One of two partners is selected to be the timing Slave to the other. If only one partner is capable of loop timing, that partner becomes the Slave. If both partners are capable of loop timing, symmetry breaking can be used to determine which partner should become Slave.

Abstract: A novel LPWAN technology includes a ZCNET node that transmit signals that occupy a very small fraction of the signal space, resulting in very low collision probabilities. ZCNET supports parallel root channels within a single frequency channel by using Zadoff-Chu (ZC) root sequences. The root channels do not severely interfere with each other, because the interference power is spread evenly over the entire signal space. ZCNET has its node randomly choose the transmission channel and range, while still achieving high packet receiving ratios such as 0.9 or above, because the load in each root channel is small.

Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing fault. A dynamic, resilient estimator constructs, using normal monitoring node values, a latent feature space (of lower dimensionality as compared to a temporal space) associated with latent features. The system also constructs, using normal monitoring node values, functions to project values into the latent feature space. Responsive to an indication that a node is currently being attacked or experiencing fault, the system may compute optimal values of the latent features to minimize a reconstruction error of the nodes not currently being attacked or experiencing a fault. The optimal values may then be projected back into the temporal space to provide estimated values and the current monitoring node values from the abnormal monitoring node are replaced with the estimated values.

Abstract: A device for transmitting and receiving on a coaxial cable or twisted pair cable is disclosed. The device includes a plurality of transceivers for transmitting signals to, and receiving signals from, at least one customer premise equipment (CPE) via a plurality of channels. The plurality of channels may be formed by using a plurality of twisted pairs cable or by using a plurality of frequency bands on a coaxial cable or a twisted pair. The device may also include at least one canceller for cancelling echo and/or crosstalk on at least one channel, and a processor configured to allocate to a single CPE multiple frequency bands on a single cable or multiple lines among a bundle of twisted pairs. The device may work for both coaxial cables and twisted pair cables and support for unified use of channel bonding in a frequency domain and a spacial domain.

Abstract: A modularized system for assembling electronic systems within vehicles, including a hardware connection unit embedded in a vehicle, a plurality of modules in the vehicle, communicating with the hardware connection unit, either by direct support or by an adaptor, and communicating with each other either by wired or by wireless communication, and a cellular device in the vehicle, communicating with the hardware connection unit and with one or more cloud services, and downloading firmware and software for the modules from the one or more cloud services, wherein the system is viewed and modified using a dedicated smartphone application or a cloud dashboard.

Abstract: A main Bluetooth circuit and an auxiliary Bluetooth circuit of a multi-member Bluetooth device are disclosed. The multi-member Bluetooth device is utilized for communicating data with a source Bluetooth device, and the source Bluetooth device acts as a master in a first piconet. The main Bluetooth circuit acts as a slave in the first piconet, and acts as a master in a second piconet. The auxiliary Bluetooth circuit acts as a slave in the second piconet. The main Bluetooth circuit generates a first slave clock and a second main clock synchronized with a first main clock generated by the source Bluetooth device, and samples a first audio data to be playback. The auxiliary Bluetooth circuit generates a second slave clock and a third slave clock synchronized with the second main clock, and samples a second audio data to be playback.

Abstract: Provided is a method of transmitting and receiving a frame for a multi-user multiple-input and multiple-output (MU-MIMO) communication in an access point (AP), the method including transmitting, to each of a plurality of stations (STAs), an uplink multi-user request (UL MU request) frame requesting transmission of a data frame, and receiving, from each of the plurality of STAs, the data frame during an identical period of time based on an identical reception intensity, wherein the UL MU request frame includes at least one of information on a transmission time of the data frame and information on a reception intensity of the data frame in the AP.

Abstract: An antenna apparatus includes an antenna element, a switch with a common terminal that is electrically connected to the antenna element side, a first signal path provided between a first input/output terminal of the switch and a first communication circuit, and a second signal path provided between a second input/output terminal of the switch and a second communication circuit. The first signal path includes a radio-frequency circuit and a phase shifter, and the RF circuit has an impedance that is open or shorted in a second frequency band as seen from the antenna element side. In a state in which the first input/output terminal and the second input/output terminal are both electrically connected to the common terminal, the phase shifter provides a phase shift, and the impedance in the second frequency band of the first signal path as seen from the common terminal is open.

Abstract: A frontend module includes an antenna terminal, and a duplexer including a first filter connected to the antenna terminal and a first terminal, configured to perform cellular communications within a 3.3 GHz to 4.2 GHz band, and a second filter connected to the antenna terminal and a second terminal, configured to perform Wi-Fi communications within a 5.15 GHz to 5.950 GHz band, wherein each of the first filter and the second filter includes an LC filter, and a portion of an operating time period of the first filter overlaps a portion of an operating time period of the second filter.

Abstract: A system and method of communication, comprising establishing a first connection between the user equipment and a first non-public packet switched network which assigns a first non-public packet switched network address to user equipment; establishing an open signaling channel which communicates between the user equipment and a remote server through a cellular telephone network according to a public switched telephone network address associated with an International mobile subscriber identity; communicating an identification of the first non-public network and the first non-public packet switched network address over the open signaling channel to the remote server; and establishing a real time voice communication from the remote server to the user equipment through the first connection based on a call routed through the remote server to the public switched telephone network address.

Abstract: Apparatus and methods for testing a cable connection in order to determine whether the cable connection can adequately support delivery of one or more services delivered from a service provider infrastructure. In one embodiment, the methods and apparatus are adapted to detect RF signals on a coaxial cable connection or outlet within a premises, evaluate the signals, and determine the readiness status thereof based on the evaluation. In one variant, an algorithm is used for the evaluation of the RF signals, and is dependent on at least a geographical location of the cable outlet being tested. The algorithm evaluates a list of prospective RF channels for signal strength so as to correlate or exclude any signals present from one or more types of sources (e.g., OTA broadcasts, satellite service providers, etc.).

Abstract: A multi-user system to simultaneously perform operations such as communication, RADAR, Light Detection and Ranging (LIDAR) and Relative Navigation (RELNAV). The techniques according to an embodiment includes generating a Fourier based orthogonal chirp sequence of length P, a prime number greater than the number of users targeted for communication. The orthogonal chirp sequence is based on an identifier, in the range of one to P?1, associated with one of the targeted users. The method further includes using the orthogonal chirp sequence to generate a spread user signal based on a message directed to the one targeted users. The method further includes generating a sequence of training pulses for insertion into the spread user signal to facilitate reception of the signal. The method further includes transmitting and receiving a reflection of the spread user signal from one of the targeted users, the reflection used to detect and range the user.

Abstract: Systems and methods for detecting patterns in data from a time-series are provided. According to some implementations, the systems and methods may use network topology information combined with object recognition techniques to detect patterns. One embodiment of a method includes the steps of obtaining information defining a topology of a multi-layer network having a plurality of Network Elements (NEs) and a plurality of links interconnecting the NEs and receiving Performance Monitoring (PM) metrics and one or more alarms from the multi-layer network. Based on the information defining the topology, the PM metrics, and the one or more alarms, the method also includes the step of utilizing a Machine Learning (ML) process to identify a problematic component from the plurality of NEs and links and to identify a root cause associated with the problematic component.

Abstract: Techniques and mechanisms for providing integrity verified paths using only integrity validated pods of nodes. A network service mesh (NSM) associated with a first pod may locally generate a nonce and provide the nonce to the first pod, where the request includes a request for an attestation token. Using the nonce, the first pod may generate the attestation token and reply back to the NSM. The NSM may generate a second request for an attestation token and forward it to a NSE pod, where the request includes a second locally generated nonce generated by the NSM. The NSE pod may generate the second attestation token using the second nonce and reply back to the NSM. The NSM may then have the attestation tokens verified or validated by a certificate authority (CA) server. The NSM may thus instantiate an integrity verified path between the first pod and the NSE pod.

Abstract: A transceiver circuit includes an ADC and an echo-cancellation circuit, wherein the echo-cancellation circuit includes a steady circuit, a transient circuit and an output circuit. In the operations of the transceiver circuit, the ADC is configured to perform an analog-to-digital conversion operation on an analog input signal to generate a digital input signal. The steady circuit is configured to generate a steady echo response according to a transmitting signal. The transient circuit is configured to generate an echo response adjustment signal according to a phase change of a clock signal used by the transmitting signal. The output circuit is configured to generate an output signal according to the digital input signal, the steady echo response, and the echo response adjustment signal.