Abstract: The disclosure relates to technology for transmitting a channel state information reference signal in a communications network. A channel state information reference signal period is computed based on an estimated Doppler metric corresponding to one or more user equipment in the network. The one or more user equipment are grouped into ranges based on the estimated Doppler metric corresponding to a respective one of the one or more user equipment. The one or more user equipment in each group are then configured to receive the channel state information reference signal with the corresponding channel state information reference signal period based on the Doppler metric, and the channel state information reference signal is transmitted to the one or more user equipment according to the channel state information reference signal period.

Abstract: A method and device for providing a key for IoT communication are disclosed. The method includes an embodiment whereby an IoT device transmits a security code to a personal electronic device, derives a first security key and a second security key from the security code, protects outgoing communication with a control device based on the first security key, and protects outgoing communication with the personal electronic device based on the second security key.

Abstract: A method and device for providing a key for IoT communication are disclosed. The method includes an embodiment whereby an IoT device modulates a light signal carrying a security code to generate a modulated light signal, emits the modulated light signal to a personal electronic device, derives a security key from the security code, and performs authentication with a control device based on the security key.

Abstract: An apparatus, system, and method are provided for reducing a number of intersymbol interference components to be suppressed. Included is a receiver path with a linear equalizer configured to: receive a signal pulse including a data component and a first number of post-cursor intersymbol interference components, delay and process the signal pulse such that the signal pulse includes a second number of post-cursor intersymbol interference components which is less than the first number of post-cursor intersymbol interference components, and produce an output signal that includes the data component and the second number of post-cursor intersymbol interference components. The receiver path further includes a decision feedback equalizer in electrical communication with the linear equalizer. The decision feedback equalizer is configured to: receive the output signal from the linear equalizer, and suppress the second number of the post-cursor intersymbol interference components of the output signal.

Abstract: An apparatus comprises: radio frequency (RF) transceiver circuitry for electrical coupling to an antenna and including: a local oscillator (LO) circuit configured to generate a LO signal, and a mixer circuit configured to mix a CW tone signal with the LO signal; a measurement receiver path configured to measure an antenna signal, wherein the antenna signal includes the CW tone signal mixed with the LO signal; and baseband processing circuitry electrically coupled to the measurement receiver path and configured to adjust a clock duty ratio of the LO signal to reduce one or more counter intermodulation (CIM) signals in the antenna signal.

Abstract: A method, system, and computer-readable medium are provided for calibrating elements of a MIMO array. The method includes the steps of receiving samples of a signal from a plurality of antenna units included in the MIMO array, generating an antenna domain channel estimate based on the samples of the signal received from each antenna unit, estimating a set of spatial parameters based on the antenna domain channel estimate, generating a reconstructed channel based on the estimated set of spatial parameters, comparing the antenna domain channel estimate and the reconstructed channel to determine errors associated with a set of mismatch parameters for each antenna unit, and adjusting the set of mismatch parameters based on the errors. Each antenna unit in the plurality of antenna units is configured to sample the signal based on a clock corresponding with the antenna unit.

Abstract: An apparatus comprising a memory, a processor coupled to the memory and configured to obtain a Dynamic Adaptive Streaming over Hypertext Transfer Protocol (HTTP) (DASH) Media Presentation Description (MPD) from an HTTP server, wherein the MPD describes a media presentation as at least one encrypted segment, and wherein the encrypted segment is associated with an availability time and a decryption key, and pre-fetch the decryption key associated with the encrypted segment by requesting the decryption key from a key server prior to the availability time of the encrypted segment.

Abstract: A system and method of predicting cellular network performance based on observed performance indicator data from cells in the cellular network. The method includes accessing a set of observed performance indicator data, the performance indicator data including a time sequenced measure of performance indicators for the cellular network. The method then classifies the observed performance data based on a cell as one of a high load growth cell and a high load non-growth cell. Based on the classification of the cell, the method computes a future value of at least one performance indicator using a predictive model based on testing data for the cell in the observed performance indicator data. The predictive model is derived from training data in the observed performance indicator data. An indication of the future value of the at least one of the performance indicators is output when the future value exceeds an alarm value.

Abstract: A method for cell adaptation includes receiving, by a user equipment (UE), one or more transmission parameters for a transition reference signal (TRS). One or more cells is transitioned between a reduced activity mode and an active transmission and reception mode in accordance with the TRS. The method further includes the UE determining whether or not to transmit the TRS in accordance with one or more TRS transmission criteria, and the UE transmitting the TRS in accordance with the one or more transmission parameters.

Abstract: An apparatus is configured to perform a method for generalized view morphing. The method includes determining a camera plane based on a predetermined view point of a virtual camera associated with a desired virtual image, the camera plane comprising at least three real cameras; pre-warping at least three image planes such that all of the image planes are parallel to the camera plane, each image plane associated with one of the real cameras positioned in the camera plane; determining a virtual image plane by performing a linear interpolation morphing on the at least three image planes; and post-warping the virtual image plane to a predetermined pose.

Abstract: Various disclosed embodiments include methods and systems for managing lock or latch chains in concurrent execution of database queries. A method includes receiving a plurality of transactions, each transaction associated with one or more queuing requests. The method includes, for each transaction, determining one or more partition sets. Each partition set corresponds to one or more database partitions needed for the transaction. The one or more database partitions are included within a partitioned database. The method includes, for each transaction, determining one or more queues needed for the transaction and storing a bitmap representation of the one or more queues needed for the transaction. The one or more queues needed for the transaction correspond to the one or more database partitions needed for the transaction.

Abstract: An apparatus for a multilayer printed circuit board (PCB) coil, comprising: a first coil layer of a PCB; a plurality of vias coupled to and distributed to cover substantially the surface of the first coil layer within the PCB; and a second coil layer of the PCB and coupled to the vias to cover substantially the surface of the second coil layer, wherein the vias are positioned between the first coil layer and the second coil layer and enable substantially high current and low equivalent series resistance (ESR) for the multilayer PCB coil.

Abstract: An antenna comprising a conductive base comprising a west edge, an east edge, a north edge, a south edge, and a center axis, a left slot of nonconductive material extending from the south edge toward the north edge and positioned between the west edge and the center axis, and a right slot of nonconductive material extending from the south edge toward the north edge and positioned between the east edge and the center axis.

Abstract: A mobile device comprising an antenna, a receiver coupled to the antenna, and a transmitter coupled to the antenna, wherein the receiver, the transmitter, or both comprise a low noise amplifier comprising an adjustable gain and a variable impedance controller, and wherein the low noise amplifier is configured to sink current and to adjust a shunt resistance substantially simultaneously. Included is a method comprising receiving an electrical signal, substantially simultaneously adjusting an input impedance and a gain factor, amplifying the electrical signal, thereby producing an amplified signal, and outputting the amplified signal.

Abstract: The disclosure relates to technology for displaying a notification on a communication device. A communication device receives communications associated with a respective application operating on the communication device. The communication is identified to determine the sender by accessing contact information stored in storage and accessible by the communication device. The communications are filtered based on a prioritization level determined at least in part by information acquired when accessing the contact information, and the user of the communication device is notified of the filtered communications by displaying one or more customized images on a display of the communication device, with a customized image of the one or more customized images being representative of the sender such that the one or more customized images visually overlap with an icon corresponding to the application.

Abstract: A method for data redistribution of a job data in a first datanode (DN) to at least one additional DN in a Massively Parallel Processing (MPP) Database (DB) is provided. The method includes recording a snapshot of the job data, creating a first data portion in the first DN and a redistribution data portion in the first DN, collecting changes to a job data copy stored in a temporary table, and initiating transfer of the redistribution data portion to the at least one additional DN.

Abstract: The disclosure relates to technology for discovering a topology in a network. The discovery procedure includes providing a representation for the topology of the network and transmitting a probe message to a probed network node. The representation identifies neighboring nodes of the probed network node. In response to receiving a returned message corresponding to the probed message from the network, it is determined whether the probe message was returned from a newly discovered neighboring node of the probed network node. In response to determining that the returned message corresponding to the probe message was returned by the newly discovered neighboring node, the representation of the topology is updated to identify the newly discovered neighboring node of the probed network node. The probe message is then transmitted to the newly discovered neighboring node.

Abstract: A method for allocating an IP address for an instance in a NFV system includes obtaining a first requirement of IP address allocation from VNFD by a first node in the NFV system. A second requirement of IP address allocation for the instance is determined according to the first requirement. Then the second requirement is sent to a second node in the NFV system that allocates the IP address for the instance.

Abstract: An apparatus and method are provided for use with a first card of a first size [e.g. subscriber identify module (SIM) card, etc.] and a second card of a second size (e.g. memory card, etc.). Included is a connector with a first portion and a second portion which is configured for being manipulated to have a first orientation and a second orientation. The first orientation is such that the first portion of the connector is positioned for removably receiving the first card, or the second portion of the connector is positioned for removably receiving the second card. Further, the second orientation is such that the first card is stacked with the second card for being removably inserted in a device.

Abstract: As a solution to the type of problems noted above, this disclosure provides novel methods and systems that include dual-port solid-state drive (SSD) DIMM devices to provide primary storage capabilities with very low latency and better availability of DDR4 devices. The dual-port DDR4-SSD flash memory devices guarantee primary storage devices still accessible with one CPU or network failure. The novel DDR4 memory bus devices may be used not only for memory media and storage device buffers, but also to allow two CPUs to share data stored in flash SSD chips and to greatly improve DDR4 bus efficiency and bus utilizations by block accesses and eliminate PCIE-DMA data transfers. Through the features of the claimed subject matter described herein, dual-port DDR4-DIMM memory devices can be achieved that provide an All-Flash-Array storage system with substantially higher reliability, availability, and performance over conventional SATA/SAS-SSD, PCIE-SSD, and NVME-SSD solutions.