Abstract: Embodiments of the present disclosure provide techniques and an apparatus for partitioning calibration data into line card and pluggable properties and processing the partitioned data using a processor of the line card. For example, calibration information corresponding to components in the pluggable module may be stored on the pluggable module and transferred from the pluggable optical module to the processor on the line card. The processor may combine the calibration information received from the optical module with calibration information corresponding to properties on the line card to obtain system calibration information. The system calibration information may be used to configure one or more components used to process electric signals sent to or received from the optical module.

Abstract: A light transmitter-receiver includes a signal processor that carries out a process of transmitting or receiving a light signal; a rigid substrate that is in a plate shape and that has a first through-hole terminal; a package that is fixed to the rigid substrate, that accommodates the signal processor, and that includes a second terminal disposed on a side wall of the package and electrically coupled to the signal processor; and a flexible substrate that extends along the side wall and that includes a third terminal disposed at an tip of the flexible substrate and electrically coupled to the second terminal, the third terminal being coupled to the first through-hole terminal in a state where the third terminal is placed in the first through-hole terminal.

Abstract: Disclosed systems and methods transmit and receive data encoded as optical signals that include a progression of symbols, with each symbol represented as a combination of light frequencies. Light is used as the carrier medium to limit reception to devices that are within visible range of the transmitting device. No mapping of data to symbols is required for generation of the symbol progression by the transmitter and no mapping of symbols to data for recognition of the symbols is required by the receiver. Disclosed embodiments allow arbitrary selection among a plurality of mappings between symbols sent and symbols received. Embodiments are robust to: ambient lighting conditions, differences in optical and temporal response of the first and second devices, and differences in relative orientation between the first and second devices. Embodiments enable a variety of functions including device discovery, feature discovery, beacon identification, status reporting, error readout, key exchange, and authentication.

Abstract: Quasi-reduced state trellis equalization techniques achieve low-latency inter-symbol interference (ISI) equalization by selecting a subset of accumulated path metrics (APMs) for a leading symbol to propagate over a trellis to candidate states of a trailing symbol. This simplifies the computation of APMs for candidate states of the trailing symbol. Thereafter, APMs for candidate states of the trailing symbol are computed based on the subset of APMs for the leading symbol that were propagated over the trellis. Propagating fewer than all APMs for the leading symbol to the trailing symbol reduces the complexity of APM computation at the trailing symbol.

Abstract: A monitoring system is disclosed herein. In various aspects, the monitoring system may include a sensor mounted upon a submersible probe to detect sensor data at a depth within a water body, and a mobile device in communication with the sensor to receive the sensor data. The mobile device may be in communication with the Internet cloud to communicate data with the Internet cloud, the data comprising the sensor data and additional sensor data from additional probes geographically disposed about the water body at known GPS locations. An app may be operably engaged with the mobile device and with the Internet cloud to control the communication of data between the mobile device and the Internet cloud, and the app may integrates the data for on the mobile device in real time. This Abstract is presented to meet requirements of 37 C.F.R. §1.72(b) only. This Abstract is not intended to identify key elements of the apparatus and methods disclosed herein or to delineate the scope thereof.

Abstract: An apparatus for measuring over-the-air (OTA) wireless communication performance in an automotive application of a device under test arranged on or in a vehicle is disclosed. The apparatus comprises a chamber and a platform for supporting the vehicle within the chamber. The platform is a rotatable platform that can rotate the vehicle, and the floor is inwardly reflective, and optionally covered with a top layer to resemble asphalt or other road covers. In one embodiment, the chamber is a reverberation chamber, simulating a multi-path environment, and preferably a rich isotropic multipath (RIMP) environment. In another embodiment, the chamber has inwardly absorbing walls, simulating a random-LOS environment.

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) in which test data packets with varying power levels are transmitted to the DUT for testing the DUT while still ensuring that the DUT remains in receive (RX) mode and is prevented from searching for another data packet signal. Alternatively, in the event that the DUT becomes unresponsive due to searching for another data packet signal, multiple test data packets with sufficient signal power levels to ensure reception by the DUT are transmitted to the DUT to cause the DUT to cease searching for another data packet signal and return to RX mode.

Abstract: Method for testing a radio frequency (RF) data packet signal transceiver device under test (DUT) including detecting transitions between RF data packet signal transmission and reception by the DUT, detecting transitions between different RF data packet signal transmission operations by the DUT, and detecting transitions between different RF data packet signal reception operations by the DUT.

Abstract: A channel calibration apparatus includes a detection module, configured to detect self-loopback responses, transmission responses, and receiving responses of a to-be-calibrated antenna and a reference antenna. The apparatus also includes a processing module, configured to determine, according to the transmission responses, and the receiving responses of the to-be-calibrated antenna and the reference antenna, and according to transport channel responses, transmission responses and receive channel responses that are of the to-be-calibrated antenna and the reference antenna and obtained after processing of transmit channel responses, and then determine a transmit channel compensation response and a receive channel compensation response that are of the to-be-calibrated antenna.

Abstract: A device includes circuitry configured to transmit a first test signal to another device via one or more communication links. The device receives a second test signal transmitted from the another device via the one or more communication links. The circuitry is configured to determine a signal-to-noise ratio (SNR) at the device and the another device. Data rates are determined for the one or more communication links based on the SNR at the device and the another device.

Abstract: Systems, apparatus, and methods are described for enhanced monitoring for an event candidate within a wireless node network. Such a system, for example, may include a server at a top level within the wireless node network, an ID node disposed at a low level within the wireless node network, and a master node disposed at a middle level within the wireless node network. The master node, which separately communicates with the server and the ID node and executes event detection code stored on its memory storage, is operative to detect a first and a second advertising signal broadcast by the ID node over a communication path with the ID node, compare an observed parameter of each of the first and second advertising signal (such as signal strength), identify the event candidate based upon the comparison, and use a second communication path to report the identified event candidate to the server.

Abstract: A system for time gap based monitoring for identifying an event candidate within a server managed wireless node network may include an ID node monitored by a master node. The system's master node is operative to receive multiples signals from the ID node; and use a timer on the master node to determine time gaps between successive received signals. The master node then compares the signals to identify a change in an observed parameter of the signals; identifies the event candidate when at least one of the identified change in the observed parameter and the detected time gaps matches an event criteria related to the ID node; and then sends a message to the server reporting the event candidate relative to the ID node.

Abstract: An in-vehicle terminal includes: a measurement unit that measures electric field strengths of radio waves for wireless communication emitted from information terminals located in a vicinity thereof; a main terminal identifying unit that identifies a predetermined main terminal among the information terminals; and a communication unit that establishes wireless communication with the identified main terminal and transmits a first electric field strength for another information terminal than the main terminal measured by the measurement unit, via the wireless communication to the main terminal.

Abstract: The present invention relates to a user terminal device comprising a first and second antenna arrangement and a first and second radio chain arrangement. The first antenna arrangement comprises at least a first antenna element and a first and second antenna port. The second antenna arrangement comprises a third and fourth antenna port, a first polarized antenna element arranged for transmitting and/or receiving signals at a first polarization via the third antenna port and a second polarized antenna element arranged for transmitting and/or receiving signals at a second polarization via the fourth antenna port. The polarizations are mutually orthogonal in at least one direction. A first switching device is arranged to connect the first radio chain arrangement with either the first or third antenna port, and a second switching device is arranged to connect the second radio chain arrangement with either the second or fourth antenna port.

Abstract: A first Multimedia over Coax Alliance (MoCA) compatible device comprises a physical layer profiling circuit and a spectrum abstraction circuit. The physical layer profiling circuit may for example be operable to measure a performance metric for each of a plurality of subbands on a shared coaxial cable of a MoCA network. The spectrum abstraction circuit may for example be operable to select, based at least in part on the measured performance metric, a subset of the subbands to be used for communication over the coaxial cable between the first MoCA-compatible device and a second MoCA-compatible device. The spectrum abstraction circuit may for example be operable to receive an indication of whether channel bonding is to be used for the communication over the coaxial cable between the first MoCA-compatible device and the second MoCA-compatible device.

Abstract: A method and an apparatus is provided by which a transmission is received on a transmission channel, wherein the transmission channel includes a plurality of channel units via which transmission is carried out; channel prediction values for at least one of the plurality of channel units are obtained; it is determined whether the channel prediction value of the at least one channel unit is correct or not, and, in case the channel prediction value is not correct, an error of the at least one channel unit is reported.

Abstract: An apparatus for processing a hybrid broadcast service, the apparatus comprising a reception module for receiving broadcast signals though a broadcast channel or contents through a broadband channel for the hybrid broadcast service, wherein the broadcast signals include data for the hybrid broadcast service and an EAM (Emergency Alert message) and a processor for receiving a request from a companion device and sending at least one of a content or continuous components or files or data or media or the data are a part of the hybrid broadcast service which is currently selected.

Abstract: An optical transmission apparatus that accommodates client signals in a line signal, includes: an OPUn mapper unit that receives and maps the client signals; and a mapping control unit that determines the number of pieces of client data to be mapped to a payload portion and determines the timing to insert client data and information on the number of pieces of client data into the payload portion to control mapping performed in the OPUn mapper unit.

Abstract: For the purpose of preventing transmission of UL signals in a subframe other than a UL subframe during the fallback operation in Dynamic TDD communication, the present invention provides a user terminal for communicating in Dynamic TDD, the user terminal having: a reception section that receives control information including an indication to dynamically change a subframe configuration of a Dynamic TDD cell and a control section that controls not to perform specific resource transmission in flexible subframes in the fallback operation based on the subframe configuration of Dynamic TDD cell signaled by higher layers or SIB1.

Abstract: Provided are a base station device and a mobile station device, which can lighten a cell-search processing. The base station device includes a frame constitution unit for forming a frame, in which a pilot symbol multiplied by a base station scrambling code and a plurality of sequences contained in the corresponding sequence set is arranged in at least the head or tail, and a radio transmission unit for sending the formed frame. On the receiving side, the frame timing can be detected from the position of a pilot symbol contained in that frame. Since the base station scrambling code and the sequence set containing the sequences are made to correspond to each other, candidates can be narrowed to at most the base station scrambling codes of the number of the combinations of the sequences contained in the sequence set, by detecting the sequences multiplied by the pilot symbol.

Abstract: An example technique may include receiving, by a mobile station from a cell, a first block of symbols and a second block of symbols, each of the first and second blocks of symbols including a plurality of contiguous segments that include a plurality of symbols, performing, by the mobile station, a short correlation of each segment of the first block of symbols with a corresponding segment of the second block of symbols to obtain a plurality of segment correlation results, determining a block correlation result for the first block of symbols and the second block of symbols based on summing at least a first subset of the segment correlation results and subtracting a second subset of the segment correlation results.

Abstract: A free space optical communications network comprises a constellation of relay nodes in serial optical communication to form an optical path. The relay nodes are configured to wavelength-multiplex a plurality of wavelength-dependent optical bent pipe channels into and out of the optical path.

Abstract: A method of fragmented packet transmission in a multiple-channel passive optical network (PON), comprising fragmenting, by a Gigabit-PON encapsulation method (GEM)/next generation-PON encapsulation method (XGEM) engine of a network element, data into a plurality of packet fragments; encapsulating, by the GEM/XGEM engine, the plurality of packet fragments into frames; scheduling, by a bonding block of the network element, transmission of the frames on a plurality of channels, wherein an order for transmitting the frames is based in part on channel availability; and transmitting, by a transmitter of the network element, the frames to a receiver on the plurality of channels according to the scheduling.

Abstract: Methods and apparatus for an OAM system having simultaneous OAM states. In embodiments, m data streams are encoded and split into n copies each of which is delayed to produce a distinct RF orbital angular momentum (OAM) mode. The delayed copies are combined using wave division multiplexing. The combined m data streams are transmitted using n antenna elements.

Abstract: An energy sensing espionage detector is disclosed. The detector is designed to alert on compromised LED lighting sources used by spies on unsuspecting corporations and individuals. The detector counters one threat vector that is emerging from newly mandated energy policies to replace conventional lighting with energy efficient LED lighting. The detector senses that information is being transmitted by the light source using pulsed or modulated energy that is not detectable by the human eye.

Abstract: Methods and apparatus for transmitting modulation parameters are disclosed. The apparatus and methods provide determination of when a particular modulation scheme is used by an access point. One or more modulation parameters associated with the particular modulation scheme and one or more timing values associated with the particular modulation scheme are then determined and transmitted using a portion of a broadcast channel transmitted by the access point.

Abstract: Embodiments of the present invention provide an information transmission method and device. The method includes: reporting, by a UE, a CQI value to an eNB; receiving, by the UE, an MCS value sent by the eNB, where the MCS value is determined by the eNB according to the CQI value; and receiving, by the UE, PDSCH data according to the MCS value, where the CQI value and the MCS value are determined according to a second set of tables, where a modulation scheme that can be supported by the second set of tables is higher than 64QAM. The embodiments of the present invention can improve system performance and reduce waste of feedback resources.

Abstract: A communication method includes executing a cyclic block permutation for a codeword generated based on a quasi-cyclic parity-check code including a repeat-accumulate quasi-cyclic low-density parity-check code, where the cyclic block permutation is permutation of cyclic blocks within the codeword, and mapping each bit of the codeword for which the cyclic block permutation is executed to any one of constellation point of a non-uniform constellation.

Abstract: A method for performing time and cell de-interleaving on an interleaved signal including a plurality of cells is provided. The method includes: providing a first memory for storing the cells, the first memory written and read each time in a unit of one cell group, the cell group including K cells, where K is a positive integer greater than 1; providing a second memory for storing the cells read from the first memory; reading the cells from the first memory, and writing the cells to the second memory according to a writing rule of a plurality of permutation rules, K consecutive cells written to the second memory being from the same cell group; and reading the cells from the second memory according to a reading rule of the permutation rules, to cause the cells read from the second memory to be complete with time de-interleaving and cell de-interleaving.

Abstract: Embodiments generally provide techniques for minimizing latency and/or power consumption for communications on a link. Embodiments include receiving a stream of bits within a metaframe. Upon determining that a cyclic redundancy check (CRC) for a portion of the stream of bits is valid, the portion of the stream of bits is forwarded without performing forward error correction (FEC) decoding for the first portion. Upon determining that a CRC for the portion of the stream of bits is invalid, FEC decoding is performed for the portion before forwarding the portion of the stream of bits. Embodiments also include generating a metaframe for transmission over a link, and upon determining that a current measure of network throughput is less than a predefined threshold amount of network throughput, inserting one or more checkpoints into the metaframe to create different segments of the metaframe. The metaframe is then transmitted over the link.

Abstract: A polar code rate matching method and apparatus are provided. The method includes: performing bit reversal order interleaving on a polar code output by a polar code encoder, to obtain interleaved bits; and determining, based the interleaved bits, a rate-matched output sequence. By performing bit reversal order interleaving on a polar code, a rate-matched output sequence is obtained, which can reduce an FER, thereby improving HARQ performance and ensuring reliability of data transmission.

Abstract: Embodiments of the present invention provide a polar code rate matching method and a polar code rate matching apparatus. The method includes: performing matrix-based BRO interleaving on a non-systematic polar code output by a polar code encoder, to obtain interleaved bits; and determining, based on the interleaved bits, a rate-matched output sequence. According to the embodiments of the present invention, matrix-based BRO interleaving is performed on a non-systematic polar code, to obtain a rate-matched output sequence, so that a sequence structure after interleaving is more random, which can reduce an FER, thereby improving HARQ performance and ensuring reliability of data transmission.

Abstract: A method for transmitting data in a multiple-input-multiple-output space-time coded communication using a mapping table mapping a plurality of symbols defining the communication to respective antennae from amongst a plurality of transmission antennae and to at least one other transmission resource. The mapping table may comprise Alamouti-coded primary segments and may also comprise secondary segments, comprising primary segments. The primary segments in the secondary segments may be defined in accordance to an to Alamouti based code pattern applied at the segment level to define a segment-level Alamouti based code.

Abstract: Embodiments of the present invention relate to the communications field, and provide a multicast sending apparatus, a multicast receiving apparatus, and a multicast transmission determining method. The method includes: sending at least one multicast frame to multiple stations in a multicast manner; generating a multicast indication request frame, where the multicast request indication frame includes an identifier of the at least one multicast frame, the multicast indication request frame is used to instruct the multiple stations to send an indication frame within a specified timeslot in a unicast and contention-based manner, and the indication frame includes an identifier of a to-be-retransmitted multicast frame; and sending the multicast indication request frame to the multiple stations in a multicast manner.

Abstract: Methods and apparatuses are described for transmitting acknowledgement information in response to a plurality of data TBs received on one or more downlink data channels over TTIs by a UE in a TDD communication system. A method includes generating acknowledgement information comprising four acknowledgement bits, jointly representing a state of reception results for the plurality of data TBs, if a first condition applies, wherein a number of the data TBs is greater than a number of the acknowledgement bits; generating acknowledgement information respectively representing a reception result for each data TB by a corresponding acknowledgement bit, if a second condition applies; encoding the acknowledgement bits; multiplexing the encoded acknowledgement bits with uplink data; and transmitting the multiplexed acknowledgement bits and the uplink data on an uplink data channel.

Abstract: The present invention relates to the field of communications network technologies, and discloses a polar code retransmission method and apparatus, which can improve HARQ performance. In embodiments of the present invention, some information bits of a first polar code are encoded to obtain a second polar code, where the first polar code is a code word that is transmitted for the first time; modulo-2 addition is performed on the first polar code and the second polar code to obtain a third polar code; and the third polar code is sent as a to-be-retransmitted code word. The solutions provided in the embodiments of the present invention are applicable when a polar code is retransmitted.

Abstract: A method for triggering an acknowledgement status report is disclosed. The method includes: receiving at least one protocol data unit (PDU); triggering an acknowledgement (ACK) status report when a condition is met no matter whether a reordering timer is running or a status prohibit timer is running; and transmitting a status report when the reordering timer is time-out or stopped.

Abstract: A data sending method includes: sending data blocks by taking a TTI as a unit, wherein the TTI includes N symbols with cyclic prefixes, Tmin<=T<=Tmax, Tmin=(13×N×L)/3, Tmax=200/K, N is a positive integer not smaller than 1 and not greater than formula (I), T represents the TTI, L represents an average value of the cyclic prefixes of the N symbols with cyclic prefixes, L<=6, formula (II) represents rounding down, K is a constant, 2<K<=7, and the unit of each of T, L, Tmin and Tmax is microsecond (?s). Also provided are a data receiving method, a data transmission method, a data sending apparatus, a data receiving apparatus, a data transmission system, and a computer storage medium.

Abstract: A method for a transmitting side transmitting a signal for low transmission latency in a wireless communication system, according to one embodiment of the present invention, comprises the steps of: mapping a signal to at least one subframe; and the transmitting side transmitting the signal to a receiving side. Here, the at least one subframe is a legacy subframe comprising L number of orthogonal frequency division multiplexing (OFDM) symbols, or an advanced subframe comprising N number of OFDM symbols, wherein the advanced subframe may be transmitted twice or more times within the transmission period of the legacy subframe.

Abstract: Techniques are described for wireless communication. One method includes identifying a plurality of counters used to contend for access to a plurality of channels of an unlicensed radio frequency spectrum band. Each of the plurality of counters is associated with a respective channel of the plurality of channels of the unlicensed radio frequency spectrum band. The method also includes measuring at least one channel of the plurality of channels of the unlicensed radio frequency spectrum band. The measuring is associated with a contention for access to the at least one channel of the unlicensed radio frequency spectrum band. The method also includes synchronizing or desynchronizing at least a subset of the plurality of counters based at least in part on the measuring.

Abstract: A system and method for orthogonal time frequency space communication and waveform generation compatible with OFDM. The method includes receiving a plurality of information symbols and encoding an N×M array containing the plurality of information symbols into a two-dimensional array of modulation symbols by spreading each of the plurality of information symbols with respect to both time and frequency. The two-dimensional array of modulation symbols is then transmitted along with one or more OFDM symbols using a plurality of narrowband subcarriers.

Abstract: A method for processing interference signals, comprising the following steps of: receiving, by a terminal, configuration information sent by a base station to obtain periodic scheduling configuration information of a neighbor cell on specific time-frequency resources; detecting, by the terminal, an interference signal of the neighbor cell according to the scheduling configuration information, and acquiring information about the interference signal; and, performing, by the terminal, interference cancellation and/or interference suppression on the detected interference signal according to the information about the interference signal.

Abstract: Backhaul resource utilization efficiency can be improved by performing lower-layer decoding of uplink transmissions at access points to obtain transport blocks carried by the uplink transmissions, and then strategically scheduling the transport blocks over backhaul links extending between the access points and network nodes. Upon reception, the network nodes may perform radio link control (RLC) decoding of the transport blocks to obtain the uplink data. Transport blocks may be scheduled a manner that prioritizes time-sensitive data (e.g., voice traffic), or in a manner that strategically routes transport blocks over backhaul paths to increase the overall utilization of backhaul resources.

Abstract: In accordance with an embodiment, a method is provided in which a first wireless access point sends a downlink multi-user multiple-input multiple-output (MIMO) transmission to a plurality of client devices. The downlink multi-user MIMO transmission is configured to solicit acknowledgments from two or more of the plurality of client devices. The acknowledgments are received at a plurality of antennas of the first wireless access point from the two or more of the plurality of client devices. Uplink multi-user MIMO processing of the acknowledgments is performed from the two or more of the plurality of client devices to recover the acknowledgments respectively from each of the two or more of the plurality of client devices.

Abstract: The present invention discloses a method for transmitting a synchronization signal and a synchronization channel in a wireless communication system supporting Device-to-Device (D2D) communication; and an apparatus for the method. More specifically, a method for transmitting a D2D synchronization signal and a D2D synchronization channel in a wireless communication system supporting D2D communication comprises mapping the D2D synchronization signal and the D2D synchronization channel to a physical resource; and transmitting the mapped D2D synchronization signal and D2D synchronization channel to a UE, wherein the D2D synchronization signal is mapped to 64 subcarriers in the frequency domain, and the D2D synchronization channel is mapped to the same resource block as the D2D synchronization signal.

Abstract: In accordance with various aspect of the present disclosure, apparatus may transmit a first data resource element for a first UE on a base layer. The first UE is unconfigured for NOMA communication. The apparatus may also transmits data for a second UE on an enhancement layer. The second UE is configured for NOMA communication. Additionally, the base layer is overlayed with the enhancement layer. The reference signal may include a cell specific reference signal. The apparatus may be further configured to receive a traffic power ratio for the second UE to be followed by the second UE when the second UE is a base layer UE in a NOMA communication.

Abstract: The present disclosure provides a method for repetitive transmission of a physical control channel. The method comprises: transmitting the physical control channel in a number of Control Channel Elements (CCEs) of each subframe in a set of subframes for repetitive transmission of the physical control channel. The present disclosure also provides a method for receiving a physical control channel, a base station and a User Equipment.

Abstract: Disclosed herein are system, method, and computer program product embodiments for performing multiuser block acknowledgement in a wireless communication protocol. Embodiments include receiving a control frame from an access point (AP). A transmission mode can be determined based on a trigger information field in the control frame. Further, a data frame to acknowledge can be determined based on a block acknowledgement request (BAR) field in the control frame. A block acknowledgment (BA) frame can be generated based on the data frame to acknowledge. The BA frame can then be transmitted to the AP based on the transmission mode, e.g., at the same time another BA frame is transmitted to the AP by another station.

Abstract: For aperiodic reporting of CSI, nCQI ref is four, and a subframe n?nCQI ref corresponds to a valid subframe. A subframe that satisfies a criteria including at least a criterion (i) is regarded as being valid. In the criterion (i), in a case where third information for a radio frame is detected, an UL-DL configuration for the radio frame is given by the third information for the radio frame, and in a case where the third information for the radio frame is not detected, the UL-DL configuration for the radio frame is given by first information. The criterion (i) stipulates that the subframe is a subframe indicated as a DL subframe or a special subframe by the UL-DL configuration for the radio frame. In a case where a subframe n?4 is not a valid subframe for aperiodic reporting of channel state information, the reporting of the CSI is omitted in the subframe n.

Abstract: Methods that are performed by a user equipment (UE) and corresponding methods of base stations that allow a UE to determine whether the UE is in a carrier aggregation enabled or disabled state. One exemplary embodiment of a method performed by a UE determines a first artificial value for a first parameter and a second artificial value for a power headroom (PHR) for a secondary component carrier (SCC), the first and second artificial values being substantially low relative to a configuration of the network, generates an artificial report including the first and second artificial values, transmits the artificial report to a primary cell providing a primary component carrier (PCC) and receives an indication that the UE is placed in a carrier aggregation disabled state.