Abstract: An optical device may include a non-linear optical medium and an optical coupler coupled to the optical medium. The optical coupler may be configured to multiplex an optical data signal and an optical pump signal onto the optical medium such that an optical idler signal is generated. The power of the optical pump signal may be below a level that results in optical parametric amplification of the optical idler signal. The optical device may further include an amplifier coupled to the optical medium and configured to amplify the optical data signal.

Abstract: A communications network includes a central communication unit, an optical transport medium, and a plurality of remote radio base stations. The central communication unit generates, within a selected millimeter-wave frequency band, a plurality of adjacent two-tone optical frequency conjugate pairs. Each conjugate pair includes a first optical tone carrying a modulated data signal, and a second optical tone carrying a reference local oscillator signal. The optical transport medium transports the plurality of two-tone conjugate pairs to the plurality of radio base stations, and each base station receives at least one conjugate pair at an optical front end thereof. The optical front end separates the first optical tone from the second optical tone, and converts the first optical tone into a millimeter-wave radio frequency electrical signal.

Abstract: Systems and methods for measuring the amount of drift of a clock in a remote device relative to a clock in a core, both in a distributed access architecture, by measuring the change in fullness of a dejitter buffer in the remote device that holds data provided from the core.

Abstract: A processor of a network device receives i) a timing message and ii) a control header corresponding to the timing message. The control header includes information that indicates a timestamping method for communicating timing information corresponding to transmission of the timing message by the network device. The timestamping method is selected from a set of multiple timestamping methods that includes: i) a one-step timestamping method, and ii) a two-step timestamping method. The processor determines whether the two-step timing timestamping method is to be performed based on analyzing the information in the control header. The network device transmits the timing message within a first packet and determines timing information corresponding to the transmission of the first packet. In response to determining that the timestamping method is the two-step method, the processor stores the timing information in a memory for subsequent inclusion in a second packet that is to be subsequently transmitted.

Abstract: According to an example embodiment, a method is provided including: decoding, at a base station of a wireless system, one or more bits of an uplink transmission from a user equipment, wherein the one or more bits are indicative of a channel quality; calculating a confidence metric corresponding to a reliability of the decoding; and causing a channel quality report to be generated based at least on the calculated confidence metric and a value for each system configuration parameter in a limited set of one or more system configuration parameters associated with the base station.

Abstract: A particular overall architecture for transmission over a bonded channel system consisting of two interconnected MoCA (Multimedia over Coax Alliance) 2.0 SoCs (Systems on a Chip) and a method and apparatus for the case of a “bonded” channel network. With a bonded channel network, the data is divided into two segments, the first of which is transported over a primary channel and the second of which is transported over a secondary channel.

Abstract: An embodiment provides a constant bit rate (CBR) service bitstream processing method. In that embodiment, the CBR service bitstream is received; a code block stream is obtained based on the service bitstream. An encoding type of the code block stream is M bit/N bit encoding, M is a positive integer, N is an integer not less than M, the code block stream includes a first-type code block and a second-type code block, the first-type code block includes M service bits, the second-type code block includes L service bits, and L is an integer less than M and not less than 0. The ode block stream is sent. A quantity of service bits carried in the second-type code block may be flexibly adjusted.

Abstract: An example method may include obtaining multiple symbols each associated with a different state in a quadrature amplitude modulation scheme used for transmission of a data signal. The method may further include determining a sequence of symbols of the multiple symbols for a first portion of the data signal. The determining may include selecting an index value from multiple index values for the first portion of the data signal. The determining may also include obtaining energy states of multiple sequences of the symbols using the energy levels of the symbols. The determining may further include obtaining a relationship between the energy levels of the symbols, the energy states of the multiple sequences of the symbols, and the multiple index values. The determining may further include selecting the sequence of symbols based on the relationship and the index value for the first portion of the data signal.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE determines a first uplink slot on an uplink carrier for reporting channel state information. The UE determines, on a downlink carrier, a first downlink slot that is an earliest downlink slot overlaps with the first uplink slot. The UE determines a number M based on a numerology of the downlink carrier, M being an integer greater than or equal to 0. The UE measures a reference signal, received no later than a second downlink slot that is a latest valid downlink slot no later than M downlink slots prior to the first downlink slot, to generate the channel state information.

Abstract: A base station is provided with: a control circuit that, on the basis of one of a communication parameter which is set in accordance with communication quality and a retransmission control operation, decides the other thereof; and a communication circuit that, on the basis of the communication parameter or retransmission control operation to be decided, communicates with a terminal.

Abstract: A base station communicates with a terminal, for which an uplink component carrier and downlink component carriers are configured. The base station adjusts a payload size of control information, transmitted in a downlink control channel, based on a basic payload size, and maps the control information onto a search space in at least one of the downlink component carriers. The basic payload size of the control information mapped onto a search space in a primary downlink component carrier is based on a number of information bits obtained from a bandwidth of the primary downlink component carrier, and on a number of information bits obtained from a bandwidth of the uplink component carrier. The basic payload size of the control information mapped onto a search space in a non-primary downlink component carrier is based on a number of information bits obtained from a bandwidth of the non-primary downlink component carrier.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a control channel message encoded according to a first format that is associated with a different set of shared data channel parameters than a second format supported by the UE. The second format is a legacy format relative to the first format. The UE may further determine that the control channel message is encoded according to the first format based at least in part on comparing one or more bit values, of the control channel message, in bit positions corresponding to a set of bits defined by the second format, and one or more expected bit values defined by the first format. The UE may select one or more resources for transmission based at least in part on information included in the control channel message. Numerous other aspects are provided.

Abstract: A method performed by a WTRU may comprise generating a polar factor graph and pruning the polar factor graph to generate a pruned factor graph. The pruned factor graph may include input variable nodes, check nodes and output variable nodes. The method may further comprise the initializing input variable nodes. For each of a plurality of encoding levels of the pruned factor graph, values from the input variable nodes may be transferred to the check nodes. Operations, for example, XOR) additions, may be performed on the values of the check nodes. Check nodes having a single connection to another node not used in a previous transfer may be identified. Values from the identified check nodes may be transferred to the input variable nodes. Binary values from the input variable nodes may be transferred to the output variable nodes for transmission to a receiver.

Abstract: In a transmission method according to one aspect of the present disclosure, a encoder performs error correction coding on an information bit string to generate a code word. A mapper modulates a first bit string in which the number of bits is the predetermined integral multiple of (X+Y) in the code word using a first scheme, the first scheme being a set of a modulation scheme in which an X-bit bit string is mapped to generate a first complex signal and a modulation scheme in which a Y-bit bit string is mapped to generate a second complex signal, and modulates a second bit string in which the first bit string is removed from the code word using a second scheme different from the first scheme.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Further, the present disclosure relates to decoding of a turbo code in a communication system including long term evolution (LTE), and to efficiently implement a method, procedure, and device for receiving and decoding a signal transmitted in a mobile communication system.

Abstract: Disclosed are a communication technique which merges, with IoT technology, a 5G communication system for supporting a data transmission rate higher than that of a 4G system, and a system therefor. The present disclosure can be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail, security- and safety-related services, and the like) on the basis of 5G communication technology and IoT-related technology. Disclosed are a method and apparatus for driving a PDCP layer apparatus during data decompression failure in a next-generation mobile communication system.

Abstract: Wireless communications systems and methods related to hybrid repeat request (HARQ) with rate splitting are provided. A first wireless communication device communicates, with a second wireless communication device, a first communication signal including a plurality of information bits. The first wireless communication device determines a number of bits in the plurality of information bits to be repeated in a second communication signal based on channel capacity information. The first wireless communication device communicates, with the second wireless communication device, the second communication signal including the plurality of information bits and a repetition of a subset of the plurality of information bits, where the subset of the plurality of information bits includes the determined number of bits.

Abstract: This mobile station is provided with a control circuit that, on the basis of information relating to a plurality of second time resources including a first time resource set to a first type of mobile station, decides a resource used for repeat transmission to a second type of mobile station, and a reception circuit that receives signals by a resource.

Abstract: Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently facilitating acknowledgment (ACK) or negative acknowledgment (NACK) feedback from a user equipment (UE) for a set of transport blocks in one or more multicast transmissions from a base station. The UE may determine control channel resources for transmitting the ACK/NACK feedback, and each respective control channel resource may correspond to a distinct subset of the set of transport blocks. Once the UE determines a subset of transport blocks that the UE failed to decode (such as at least one transport block), the UE may determine a respective control channel resource that corresponds to the at least one transport block that the UE failed to decode. The UE may transmit ACK/NACK feedback on the respective control channel resource, which, in some examples, may indicate that the UE failed to decode the subset of transport blocks.

Abstract: Techniques and apparatus for providing hybrid automatic repeat request (HARQ) feedback for multiple physical downlink shared channel (PDSCH) transmissions are described. One example technique involves receiving downlink control information (DCI) scheduling a plurality of downlink data transmissions across a plurality of slots. The plurality of downlink data transmissions are monitored across the plurality of slots. At least one HARQ feedback scheme for acknowledging the plurality of downlink data transmissions is determined. HARQ feedback for the plurality of downlink data transmissions is provided in accordance with the at least one HARQ feedback scheme.

Abstract: A user equipment and a method for hybrid automatic repeat request (HARQ) option configuration of the same are provided. The method includes deriving at least one HARQ feedback option based on at least one of the followings: group-related information from an upper layer, a radio resource control (RRC) state of the user equipment, or a coverage status of the user equipment.

Abstract: A wireless device receives downlink control information (DCIs), in a control channel monitoring occasion, scheduling transport blocks (TBs) in downlink time slots. Each DCI of the DCIs: schedules a respective TB, of the TBs, in a downlink time slot of the downlink time slots; and indicates a same uplink time slot for transmission of acknowledgement information of the respective TB. A determination is made, in an acknowledgement codebook, locations of acknowledgement information of the TBs based on starting times of the downlink time slots. The acknowledgement codebook is transmitted.

Abstract: Disclosed is a downlink data transmission method, including determining, by a terminal device, a transmission configuration indicator (TCI) state corresponding to downlink data transmission based on downlink control information (DCI); and determining a redundancy version (RV) value corresponding to the downlink data transmission based on the DCI. The TCI state and the RV value are used for the terminal device to receive downlink data. Embodiments of the present disclosure also provide a terminal device and a storage medium.

Abstract: Embodiments of this application disclose a example polar code encoding methods, example polar code decoding methods, and example apparatuses thereof. One example method in embodiments of this application includes generating an input vector, where the input vector includes T subblocks, a first information bit of a first subblock is obtained by replicating a second information bit of a second subblock, the first subblock and the second subblock are subblocks of the T subblocks, a sequence number of the first subblock is after a sequence number of the second subblock, and T is an integer greater than or equal to 2. Polar encoding can then be performed on the input vector to obtain an encoded bit.

Abstract: The present disclosure relates to methods and apparatuses for handling collisions. A method includes receiving at a first communication equipment first scheduling information; determining whether there is a transmission resource collision of a first TB and a second TB; and storing the first TB or the second TB for transmission if the collision is determined.

Abstract: Various example embodiments provide efficient jitter control by means of a hybrid automatic repeat request (HARQ) process. Abase station may transmit to a UE a forwarding time parameter for data packet(s) associated with a HARQ process. The UE 110 may store the data packet(s) in a HARQ buffer and determine to hold the data packet(s) in the HARQ buffer until a delivery time determined based on the forwarding time parameter. Once the delivery time has been reached, the UE may forward the data packets to higher protocol layers. This enables efficient jitter control of a data packet flow. Apparatuses, methods, and computer programs are disclosed.

Abstract: A wireless device receives a radio resource control (RRC) message that includes configuration parameters for scheduling a plurality of physical uplink shared channels (PUSCHs) via a downlink control information (DCI). In an embodiment, the configuration parameters may include an indication enabling a dynamic determination of a PUSCH of the plurality of PUSCHs for multiplexing an uplink control information (UCI). In an additional embodiment, the UCI may overlap with a first PUSCH of the plurality of PUSCHs. The wireless device may transmit the UCI via a second PUSCH of the plurality of PUSCHs in response to a failed listen-before-talk (LBT) procedure for the first PUSCH.

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for hybrid automatic repeat request (HARQ) feedback retransmission. An example method of wireless communication by a user equipment generally includes receiving signaling indicating to reschedule HARQ feedback for transmission; determining the HARQ feedback based at least in part on one or more fields of the signaling; and transmitting the HARQ feedback based on the determination.

Abstract: A communication apparatus operable to communicate with a terminal station capable of operating in a Doze state and Awake state in an IEEE 802.11 ba, decides, based on a congestion degree in a channel for communicating with the terminal station in the Awake state, a waiting time for waiting for a response to a Wake-up frame for causing the terminal station to transit from the Doze state to the Awake state from when the Wake-up frame is transmitted, transmits the Wake-up frame while the terminal station is in the Doze state, and retransmits the Wake-up frame when the waiting time has elapsed after the Wake-up frame is transmitted without receiving the response from the terminal station.

Abstract: A method for transmitting feedback information includes obtaining, by a first terminal, first indication information, wherein the first indication information is used for indicating whether the first terminal needs to send feedback information; receiving, by the first terminal, a first sidelink channel sent by a second terminal; and determining, by the first terminal, whether to send the feedback information for the first sidelink channel to the second terminal according to the first indication information.

Abstract: In some aspects, a computing device may access audio information comprising an audio stream from a client device. The computing device may provide an audio segment from the audio stream to a language identification process of the computing device comprising a machine learning model that is trained to identify a language of a plurality of languages within recorded speech. The computing device may identify an identified-language of the plurality of languages for the speech based at least in part on the audio segment. The computing device may provide the identified-language to the client device. Numerous other aspects are described.

Abstract: A call is merged with a virtual meeting to allow an audio-only caller to join the virtual meeting while bypassing one or more security checks configured for the virtual meeting. After the virtual meeting is initiated, a call is established between a phone device of the audio-only caller and a customer endpoint. A request is received from the customer endpoint to join the phone device with a virtual meeting. A channel is opened between the phone device and a web service associated with the virtual meeting. The phone device is then joined to the virtual meeting over the channel. To facilitate a seamless transition from the call to the virtual meeting, the call may be maintained as an audio channel of the virtual meeting for the audio-only caller.

Abstract: The present disclosure provides systems and methods for delivering assistance to impaired users within a virtual conferencing system, and more particularly, to providing assistance to hearing-impaired users to control the virtual conferencing system while using sign language. The systems and methods for providing assistance to impaired users includes initiating a virtual meeting, detecting one or more hand gestures within a predefined area, interpreting the one or more hand gestures to determine one or more commands, and updating one or more controls for the virtual meeting based on the one or more commands. These steps can be implemented to assist hearing-impaired users to manage controls when communicating within a virtual meeting.

Abstract: To provide an information processing system, an information processing device, an information processing method, and a recording medium capable of distributing special content for relieving a user's negative circumstances. According to the present disclosure, there is provided an information processing system including: a communication unit configured to receive at least current position information regarding a user; and a control unit configured to cause the communication unit, if the control unit determines that a predetermined area containing a position indicated by the current position information is an area that makes people staying in the predetermined area feel unpleasant, to distribute specific content to the user.

Abstract: Each of a plurality of assets within a building are configured to access a cellular network in order to ascertain its specific location, to perform self-diagnostics on itself, and to transmit an assistance request when the self-diagnostics indicates a potential problem. The assistance request may include the specific location of the asset and an indication of the potential problem. A server is operably couplable to the cellular network and is configured to receive the assistance requests from the assets, formulate a service request for responding to at least some of the received assistance requests, assign each of the service requests to a corresponding one of one or more automated asset maintenance assistants, and transmit each of the service requests to the assigned automated asset maintenance assistant instructing the assigned automated asset maintenance assistant to respond to the corresponding assistance request.

Abstract: A cloud server (104) receives environmental information of respective installation sites of a plurality of appliances (101a, 101b, 101c, 102a, 102b) via a network (1000), and determines one or more appliances that are installed in a same room among the plurality of appliances (101a, 101b, 101c, 102a, 102b), based on the received environmental information.

Abstract: In a method for data communication between a control unit and a drive system, the control unit and the drive system are connected to one another, preferably via a bus, in such a manner that data is transmitted by a telegram. The telegram includes an instruction which can be configured for recording and includes an identifier. At least one actual value, preferably a plurality of actual values, and/or of an actual value sequence, preferably a plurality of actual value sequences, of the drive system, are recorded through the instruction for recording, and at least one defined actual value from a plurality of actual values and/or recording at least one defined actual value sequence from a plurality of actual value sequences can be recorded through the identifier.

Abstract: A system for controlling an entertainment installation comprising one or more devices, wherein the system comprises: for each of the devices, a control unit; for each of the devices, a communication unit comprising a first communication port, a second communication port, a switch component, and a bypass component; one or more data connections suitable for full-duplex communication; a central management unit comprising a monitoring module suitable for receiving monitoring messages from the devices.

Abstract: Embodiments of this disclosure include a method where an access point (AP) device sends, to an access point controller (AC) device, a data tunnel support capability used to indicate a type of at least one data tunnel supported by the AP device. The type of the at least one data tunnel includes a virtual extensible local area network (VXLAN). The AP device receives configuration information of a VXLAN tunnel sent by the AC device. A local device of the VXLAN tunnel is the AP device, and the configuration information of the VXLAN tunnel includes an internet protocol (IP) address of at least one peer device of the VXLAN tunnel and virtual network index (VNI) information of the VXLAN tunnel. The AP device generates tunnel encapsulation information and routing information based on the IP address of the at least one peer device of the VXLAN tunnel and the VNI information.

Abstract: A message encapsulation method and apparatus, and a message decapsulation method and apparatus are provided. The message encapsulation method includes encapsulating a first message according to a preset encapsulation format to obtain a second message, where the first message is obtained by encapsulating a traffic stream, the second message carries stream attribute information, and the stream attribute information is used for indicating a feature attribute of the traffic stream.

Abstract: A control and/or monitoring system is disclosed. In an embodiment, the system includes a host device on which an application for generating an Ethernet frame for deriving information about an industrial Ethernet network can be run and an industrial Ethernet tunnel device which is adapted to communicate with the host device. The system is configured to inject the Ethernet frame for deriving an information about an industrial Ethernet network and/or about one or more of the industrial Ethernet devices through the industrial Ethernet tunnel device and to receive an answer in an Ethernet frame format in the host device. An industrial Ethernet tunnel device and a method for control and/or monitoring of one or more devices in an industrial Ethernet network are also disclosed.

Abstract: Some embodiments provide a centralized overlay-network cloud gateway and a set of centralized services in a transit virtual cloud network (VCN) connected to multiple other compute VCNs hosting compute nodes (VMs, containers, etc.) that are part of (belong to) the overlay network. The centralized overlay-network cloud gateway provides connectivity between compute nodes of the overlay network (e.g., a logical network spanning multiple VCNs) and compute nodes in external networks. Some embodiments use the centralized overlay-network cloud gateway to provide transitive routing (e.g., routing through a transit VCN) in the absence of direct peering between source and destination VCNs. The overlay network, of some embodiments, uses the same subnetting and default gateway address for each compute node as the cloud provider network provided by the virtual private cloud provider.

Abstract: Apparatus, methods, and computer-readable media for facilitating phase jump estimation for SL DMRS bundling are disclosed herein. An example method includes receiving, from another device, first information at a first symbol of a first slot, the first slot including at least the first symbol and a first reference signal. The example method also includes receiving second information at a second symbol of a second slot, the second slot including at least the second symbol and a second reference signal, the first information and the second information being repetitions. The example method also includes generating a first reference signal copy based at least on the second reference signal and a phase jump between the first slot and the second slot. Additionally, the example method includes performing channel estimation across the first slot and the second slot based on an aggregation of the first reference signal and the first reference signal copy.

Abstract: The present invention relates to a method and apparatus in a digital communication system that employs phase-aided adaptive modulation to overcome phase noise impairments. The transceiver is configured to transmit a message comprising channel symbols from a primary and a secondary set of channel symbols, wherein the primary set of channel symbols comprises channel symbols having different phase with respect to one another and the secondary set of channel symbols comprises only channel symbols with a fixed known phase.

Abstract: A method of channel estimation in a communication system includes the steps of: receiving at least one input signal associated with at least one data stream, the input signal having reference symbols and data symbols; processing the at least one input signal in a slot-wise manner; performing a channel estimation by taking at least one reference symbol per input signal into account, which is used to equalize the respective input signal and to assign the symbols to the at least one data stream, thereby generating a processed signal for each independent data stream, and processing further the processed signal while performing an additional channel estimation for each independent data stream, wherein the reference symbols and the data symbols are taken into account for the additional channel estimation. Further, a signal processing system is described.

Abstract: Methods and systems are described for adjusting the sample timing of a data sampler operating in a data signal processing path having a decision threshold associated with a decision feedback equalization (DFE) correction factor. The vertical threshold and sample timing of a spare sampler are varied to measure a signal amplitude trajectory of a pattern-verified signal according to detection of the predetermined transitional data pattern, the locked sampling point then being adjusted based on the measured signal amplitude trajectory.

Abstract: A radio transmitter and a method therefor are disclosed. According to an embodiment, the radio transmitter comprises a first power amplifier (PA) corresponding to a first antenna port, an observation receiver, a first determination module, a first pre-distortion module, one or more second PA each corresponding to a second antenna port, one or more second determination module and one or more second pre-distortion module. The first determination module is configured to determine a first function reflecting a nonlinearity of the first PA, based on a first input signal to the first PA, an observation signal from the observation receiver and a first set of parameters characterizing the first PA. The first pre-distortion module is configured to determine and apply a first pre-distortion to a first baseband signal for the first antenna port.

Abstract: An optimized pulse shaping clock data recovery system is provided that includes a slicer configured to receive a signal and provide an initial set of tentative decisions to a decision feedforward equalizer, where the decision feedforward equalizer provides a fully equalized output signal. The slicer may be incorporated as part of decision feedback equalizer to provide better quality tentative decisions. The clock data recovery system also receives the first output signal that is partially equalized in such a way as to optimally shape it for a clock to sample it at an ideal location by providing an adjustment signal to the analog to digital controller.

Abstract: A semiconductor device including a comparison circuit configured to receive an input signal having n signal levels, where n is a natural number equal to or greater than three, and output n?1 first signals having two signal levels. The device includes a jitter compensation circuit configured to receive the n?1 first signals and compensate for at least one of a length of a period in which a signal level of at least one of the n?1 first signals transitions from a first signal level to a second signal level different from the first signal level, and a length of a period in which the signal level of the at least one of the n?1 first signals transitions from the second signal level to the first signal level, to output n?1 second signals.

Abstract: A continuous time linear equalizer (CTLE) circuit is provided. The CTLE circuit can include a differential pair of first and second transistors, the first and second transistors having drains connected through first and second drain resistors to a drain-side supply voltage node, and sources connected together by a source resistor and connected to one or more current sources, the first transistor in the differential pair having a gate connected to a reference voltage, and the second transistor in the differential pair having a gate connected to an input voltage, the drains of the first and second transistors providing a differential pair of signals as an output voltage, a first coupling capacitor connected between the source of the first transistor and the input voltage, and a second coupling capacitor connected to the source of the second transistor.