Abstract: Through the identification of different packet-types, packets can be handled based on an assigned packet handling identifier. This identifier can, for example, enable forwarding of latency-sensitive packets without delay and allow error-sensitive packets to be stored for possible retransmission. In another embodiment, and optionally in conjunction with retransmission protocols including a packet handling identifier, a memory used for retransmission of packets can be shared with other transceiver functionality such as, coding, decoding, interleaving, deinterleaving, error correction, and the like.

Abstract: A communication device determines that a data rate of a data packet exceeds a threshold, and in response, lowers a processing speed of an equalizer device to prevent a buffer from overflowing. The buffer stores outputs generated by the equalizer device. A forward error correction code decoder device of the communication device processes outputs of the equalizer device corresponding to the data packet to generate decoded information corresponding to the data packet. The communication device transmits an acknowledgment packet to acknowledge the data packet such that transmission of the acknowledgment packet begins within required time period, defined by a communication protocol, after an end of the data packet.

Abstract: A method and apparatus are provided for transmitting and receiving control information in a wireless communication system. A method in a base station includes transmitting, to a terminal, information associated with a number of Control Channel Elements (CCEs) included in control channels; identifying a set of control channel candidates based on an IDentifier (ID) of the terminal and the information associated with the number of CCEs, wherein each control channel candidate includes one, two, four, or eight CCEs; selecting at least one control channel candidate from among the set of control channel candidates; and transmitting the control information to the terminal via the selected at least one control channel candidate.

Abstract: A vectoring controller for configuring a vectoring processor that jointly processes DMT communication signals to be transmitted over, or received from, a plurality of N subscriber lines according to a vectoring matrix. In accordance with an embodiment, the vectoring controller is configured, for given ones of a plurality of tones, to enable the given tone for direct data communication over a first set of N?Mk targeted lines out of the plurality of N subscriber lines, and to disable the given tone for direct data communication over a second disjoint set of Mk supporting lines out of the plurality of N subscriber lines, Mk denoting a non-null positive integer. The vectoring controller is further configured to configure the vectoring matrix to use an available transmit or receive power at the given tone over the second set of Mk supporting lines for further enhancement of data signal gains at the given tone over the first set of N?Mk targeted lines.

Abstract: A signal transmission method includes: combining a plurality of low-order modulated signals into N modulated signals; and transmitting the N modulated signals on N subcarriers, where the N subcarriers are subcarriers on frequency domain resources of M channels, an nth modulated signal in the N modulated signals is transmitted on an nth subcarrier in the N subcarriers, N is an integer greater than or equal to 2, M is an integer greater than or equal to 2, and n=1, 2, . . . , N. The signal transmission method can improve efficiency of a diversity gain.

Abstract: This application provides a pilot transmission method, including: determining, by a first terminal device, a target first pilot and a target second pilot group corresponding to the target first pilot, where the target first pilot is used by a network device to perform terminal device detection, and the target second pilot group includes at least two second pilots; and sending, by the first terminal device, the target first pilot and the target second pilot group to the network device in a time unit, where each second pilot in the target second pilot group is repeatedly sent on at least two symbols of the time unit, and the target second pilot group is used by the network device to perform frequency offset estimation.

Abstract: A method for transmitting and receiving a signal based on a codebook in a multi-antenna wireless communication and a device therefor are disclosed. Specifically, a method for transmitting and receiving a signal by a UE on the basis of a codebook in a 2-dimensional multi-antenna wireless communication system includes: receiving a channel state information-reference signal (CSI-RS) from an eNB through multiple antenna ports; and reporting channel state information to the eNB, wherein the channel state information includes a precoding matrix indicator (PMI), the PMI includes a first PMI for selecting a precoding matrix set from the codebook and a second PMI for selecting a precoding matrix from the precoding matrix set, pairs of indexes of a first dimension and indexes of a second dimension of precoding matrices belonging to the precoding matrix set are (x,y), (x+2,y), (x,y+1) and (x+1,y+1), and x and y are integers which are not negative numbers.

Abstract: A transmitter circuit includes first and second carrier signal generators for generating corresponding first and second digital carrier signals, each having the same frequency. Modulation circuitry determines a phase shift value based on a received modulation signal. Outphasing circuitry generates a first digital output signal by adding the phase shift value to the phase of the first digital carrier signal and generates a second digital output signal by subtracting the phase shift value from the phase of the second digital carrier signal. A first switched-capacitor digital-to-analog converter (DAC) receives the first digital output signal and generates a first analog antenna output signal. A second switched-capacitor DAC receives the second digital output signal and generates a second analog antenna output signal. The sampling phases of the first and second DACs are opposite one another, whereby the first and second analog antenna output signals form a time-interleaved antenna output signal.

Abstract: A wireless device generates a Legacy preamble, a 20 MHz Orthogonal Frequency Division Multiplexing (OFDM) symbol, and a Wake-Up (WU) signal portion. The Legacy Preamble includes a Legacy Short Training Field (L-STF), a Legacy Long Training Field (L-LTF) and a Legacy Signal (L-SIG) field. The 20 MHz OFDM symbol has a duration of 4 ?s. The WU signal portion has a frequency bandwidth that is narrower than a frequency bandwidth of the Legacy preamble. The wireless device transmits a frame, which includes transmitting the Legacy preamble, transmitting the 20 MHz OFDM symbol immediately after transmitting the Legacy preamble, and transmitting the WU signal portion immediately after transmitting the 20 MHz OFDM symbol.

Abstract: Disclosed herein is a broadcast signal receiver. The broadcast signal receiver according to an embodiment of the present invention includes a synchronization and demodulation module configured to perform detection and OFDM demodulation on a received broadcast signal, a frame parsing and deinterleaving module configured to parse and deinterleave the signal frame of the broadcast signal, a demapping and decoding module configured to convert the data of at least one Physical Layer Pipe (PLP) of the broadcast signal into a bit domain and to FEC-decode the PLP data, and an output processing module configured to receive the data of the at least one PLP and to output the received data in a data stream form.

Abstract: Disclosed are an uplink resource allocation method and a cognitive small cell network system performing the method. In the method, a small cell manager collects an access request from a small cell user and forms a preference relationship for each small cell user. Then, sub-channel-specific transmission power for providing a maximum data transmission rate at the time of uplink transmission is calculated and the calculated sub-channel-specific transmission power information is transferred to the small cell user. Meanwhile, the small cell user forms all possible sub-channel-specific preference relations and thereafter, transmits the access request for each sub-channel having a maximum preference relationship to the small cell manager.

Abstract: A wireless device according to the present invention is configured to execute a beamforming weight training function for acquiring in advance, by mutual communication between a base station and a terminal station, transmission quality information at a time when a combination of a base station beamforming weight and a terminal station beamforming weight is used, and identifying a suitable beamforming weight, and is configured to search for, based on the transmission quality information identified in the training step, a suitable beamforming weight while performing mutual communication, and execute processing of updating the suitable beamforming weight.

Abstract: An apparatus and method for orthogonal frequency division multiplexing (OFDM) transmission in a wireless local area network (WLAN) system is disclosed, in which the apparatus for OFDM transmission in the WLAN system includes a signal repetition unit to repeat an encoded signal based on a block unit and output the encoded signal and a repeated signal, an interleaver to interleave the encoded signal and the repeated signal and output an interleaved signal, a modulator to modulate the interleaved signal and output modulated symbols, and a phase rotation unit to phase shift the modulated symbols.

Abstract: Methods, systems, and devices for wireless communications are described. A network device such as a next generation (gNB) may identify control information for transmission on a downlink control channel e.g., a physical downlink control channel (PDCCH). The network device may identify a candidate set of decoding candidates to which the control information is able to be mapped. In some examples, each decoding candidate may include one or more control channel elements (CCEs). The network device may select, from the candidate set of decoding candidates, an actual set of decoding candidates to which the control information is to actually be mapped, and map the control information into the actual set of decoding candidates. Upon decoding the control information, the network device may transmit the control information within a search space including the actual set of decoding candidates to a user equipment (UE).

Abstract: A method for reporting power headroom is disclosed. Power headroom may be reported across all carriers (wideband), for a specific carrier, or for a carrier group. The formula used to calculate the power headroom depends on whether the carrier (or a carrier in the carrier group) has a valid uplink grant. If the carrier or carrier group does not have a valid uplink grant, the power headroom may be calculated based on a reference grant. The power headroom is calculated by a wireless transmit/receive unit and is reported to an eNodeB.

Abstract: A wireless device, comprising: a hybrid antenna array configured to receive a signal transmitted by another wireless device over a wireless channel; and a transceiver configured to update analog radio frequency precoders of a hierarchical codebook based on magnitudes of multipath components of the wireless channel.

Abstract: A signal processing method comprising rearranging transmission data so that a predictable portion of the transmission data is spread more uniformly in the transmission data, the predictable portion including information that is predictable by a receiver side. The phase of a carrier signal can be modulated based on the rearranged transmission data, and the modulated signal may be transmitted. The transmitted signal is received by the receiver side. A header position of each frame of the received signal is detected based on the information predictable to the receiver side. Once detected, the frames of the received signal are integrated, and the transmission data is decoded based on the integration. A signal processing device, a transmitter, and/or a receiver may utilizes these methods to transmit, receive, and/or process signals.

Abstract: A system and method are provided herein for managing an amplifier at an intermediate location in a twisted pair line between a digital subscriber line (DSL) access multiplexer and a customer premises equipment, for high data rate broadband operation. The system may include a DSL access multiplexer, an amplifier, a local communication interface and a host computer, programmed to execute an element management system service application.

Abstract: The present application provides a frequency domain spreading and de-spreading method and apparatus. In embodiments of the present application, user equipment acquires indication information of an orthogonal sequence used by a transmission physical uplink control channel (PUCCH); the user equipment spreads, according to an orthogonal sequence corresponding to the indication information of the orthogonal sequence, a frequency domain for uplink control information borne by the PUCCH; and the user equipment transmits, over a frequency domain resource corresponding to the PUCCH, the uplink control information of which the frequency domain is spread. The present application can spread a frequency domain for uplink control information borne by a PUCCH.

Abstract: Techniques are disclosed for allocating time-frequency resources in a system that uses multiple multicarrier modulation numerologies. According to one aspect, a method in a first wireless node comprises allocating (1310) time-frequency resources for use by a second wireless node, where said allocating comprises selecting, for use in multicarrier modulation in the allocated time-frequency resources, one of two or more subcarrier bandwidths that the second wireless node is adapted to use for modulating or demodulating of data. In some embodiments, the method further comprises sending (1320) resource allocation information to the second wireless node, the resource allocation information identifying the allocated time-frequency resources.

Abstract: Technology for a UE configured to perform RSTD measurements for OTDOA positioning is disclosed. The UE can decode a MBSFN subframe configuration information for one or more cells in a plurality of cells. The UE can decode PRS configuration information for one or more cells in the plurality of cells. The UE can determine, for the one or more cells in the plurality of cells, an existence of a CRS for selected subframes of a plurality of subframes based on the MBSFN subframe configuration information. The UE can determine for the one or more cells in the plurality of cells, an existence of a PRS for selected subframes of the plurality of subframes based on the PRS configuration information. The UE can measure the RSTD for the one or more cells in the plurality of cells using the CRS and the PRS.

Abstract: Certain aspects of the present disclosure provide techniques for processing reference and data signals for uplink transmission. A method is provided for wireless communications. The method generally includes obtaining different sets of samples for at least one of: a data signal or a reference signal; spreading the different sets of samples for the at least one data signal or reference signal using separate discrete Fourier transform (DFT) processing blocks; interlacing the spreaded sets of samples by assigning the spreaded sets of samples from each of the separate DFT processing blocks to equally spaced tones; and transmitting the at least one data signal or reference signal on the assigned tones in an orthogonal frequency division multiplexed (OFDM) symbol.

Abstract: A propagation channel estimation method is provided. In-phase and quadrature components of a propagation channel estimation value in each pilot subcarrier are separated into amplitude and phase components. A propagation channel of a data subcarrier portion existing between pilot subcarriers is estimated by phase/amplitude separation linear interpolating in each separated amplitude and phase component. A reference parameter is produced by linear interpolating a portion between pilot subcarriers on a complex plane. When quadrants on the complex plane of the interpolated phase component estimation value and the reference parameter are different, a phase connecting process to cancel a discontinuity of the phases is executed to the phase component estimation value interpolated by the phase/amplitude separation linear interpolation.

Abstract: A broadcast signal receiver is disclosed. A broadcast signal receiver according to an embodiment of the present invention comprises a synchronization & demodulation module performing signal detection and OFDM demodulation on a received broadcast signal; a frame parsing & deinterleaving module performing parsing and deinterleaving of a signal frame of the broadcast signal; a demapping & decoding module performing conversion of data of at least one Physical Layer Pipe (PLP) of the broadcast signal into the bit domain and FEC decoding of the converted PLP data; and an output processing module outputting a data stream by receiving the at least one PLP data.

Abstract: A system and method of creating frames comprised of blocks, where each block comprises data symbols corresponding to a higher order quadrature modulation format and support symbols corresponding to a lower order modulation format. One or more of the blocks can further comprise markers comprising distinct symbol patterns. The markers can mark the start of each frame and/or another location in the frame. The support symbols can be in a common location in each block.

Abstract: A method to provide robustness against noise and interference in wireless communications, a transmitter and computer program products, involving sending to a receiver (13), through a wireless channel (12), information using a constant-envelope waveform with complex baseband representation of the form s[n]=Ac exp{j?[n]}.

Abstract: The present application provides a method and a device for transmitting feedback information. The method includes: determining, by a transmitting terminal, a first code book in accordance with a channel measurement result, precoding matrices included in the first code book being obtained through transformation of a same construction matrix; calculating, by the transmitting terminal, to obtain a first CQI in accordance with all or part of the precoding matrices in the first code book; and transmitting, by the transmitting terminal, first indication information for indicating the first code book and second indication information for indicating the first CQI to a receiving terminal.

Abstract: A method and an apparatus in a multiple-input multiple-output (MIMO) wireless communication system are provided. A signal is received over a channel. The channel is decomposed into a plurality of virtual channels. Symbol detection is performed on each of the plurality of virtual channels using respective symbol detectors. At least one of the symbol detectors has a lower rank than that of the channel. Output from the symbol detectors is combined to obtain final log likelihood ration (LLR) values for layers of the channel. Decoding is performed using the final LLR values to output a decoded symbol value of the received signal.

Abstract: Embodiments herein relate to a method performed by a wireless device for managing communication of the wireless device in a wireless communications network. The wireless device determines at least two waveform parameters based on a metric of the wireless device, for communicating data between the wireless device and a radio network node in the wireless communications network. The wireless device further transmits an indication indicating the at least two determined waveform parameters to the radio network node.

Abstract: An embodiment of the present invention relates to a method for performing beam search or beam transmission by a first UE in a wireless communication system, the method comprising the steps of: receiving location information from a second UE; and performing at least one of beam search and beam transmission for an area determined on the basis of the received location information, wherein one or more of a beam direction, a beam first search direction, and a beam width for the beam search or the beam transmission are determined according to one or more of a location, a speed, and a moving direction of the first UE, and a service and a required packet delay value for the first UE.

Abstract: A method and system signal resource allocation information in an asymmetric multicarrier communication network. A MS communicates with a BS using asymmetric carriers consisting of at least one low frequency carrier (e.g., primary carriers) in a cellular band and at least one high frequency carrier secondary carriers) in a millimeter Wave band. In one embodiment, the BS allocates resources for one or more transmit time intervals in at least one of DL allocation interval of a secondary DL carrier and UL allocation interval of a secondary UL carrier for the MS, where the DL allocation interval spans one or more subframes of the secondary DL carrier and the UL allocation interval spans one or more subframes of the secondary UL carrier. The BS then transmits information regarding the allocated resources to the MS in a Packet Data Control Channel region of a subframe of the primary DL carrier.

Abstract: A system and method are disclosed for selecting a sampling frequency in a system that performs bandpass sampling and uses a polyphase downconverter channelizer to receive multiple RF signals. The method accounts for the frequency location of the received signals throughout the signal reception process to simplify the overall processing. The procedure finds a sampling frequency that positions all or a subset of the sampled signals such that the sampled signals fall within the input channels of the polyphase downconverter channelizer, thus simplifying processing compared to prior art methods which address the bandpass sampling and polyphase downconverter channelizer components separately.

Abstract: The present specification presents a technique for transmitting a PPDU by using a resource unit including carriers of different sizes. For example, a PPDU is transmitted by using five frequency bands, a left guard band, and a right guard band. Null subcarriers can be included in the five frequency bands according to the type of included resource unit. The null subcarriers can be the leftmost side or the rightmost side of each frequency band, and the number of included null subcarriers can be determined according to the size of the carrier included in each resource unit or the type of resource unit. A frequency band including DC carriers can include only one resource unit having a discontinuous carrier, and null subcarriers can be further included around the DC carriers.

Abstract: Methods and systems are disclosed for multiple-input multiple-output power line communication coupling and may include a circuit for powerline communication comprising a 4-wire choke with three terminals coupled to line, neutral, and earth lines via input capacitors for receiving an alternating current (AC) power signal and radio frequency (RF) signals; a first transformer with two terminals coupled to the choke; and a coupling circuit comprising a plurality of powerline communication receivers. A first receiver of the plurality of powerline communication receivers is for receiving a first RF signal via a secondary coil of the first transformer, a second receiver of the plurality of powerline communication receivers is for receiving a second RF signal via a center terminal of a capacitor pair coupled to primary coils of the first transformer, and a third receiver of the plurality of powerline receivers is for receiving a third RF signal via a fourth terminal of the choke.

Abstract: In one embodiment, a method includes identifying, by a network access point, a plurality of channels within a spectrum block and determining, by the network access point, to allocate at least one channel of the plurality of channels to a device based on requirements of the device. The method further includes allocating, by the network access point, the at least one channel to the device. The at least one channel is exclusively for use between the network access point and the device.

Abstract: This application discloses a grant-free transmission method, a network device, and a terminal device. The method includes: detecting, by a network device, a pilot sequence used by a terminal device for uplink transmission; determining, by the network device, a pilot sequence index of the pilot sequence based on the pilot sequence and a correspondence between the pilot sequence and the pilot sequence index; and sending, by the network device, information about a feedback result of the uplink transmission to the terminal device based on the pilot sequence index.

Abstract: A terminal includes: a receiver, which, in operation, receives a plurality of data signals that is spatially multiplexed, the plurality of data signals being transmitted from a small-cell base station disposed in an area covered by a macro-cell base station; an estimator, which, in operation, estimates power of a signal from the macro-cell base station as interfering-signal power; and a signal separator, which, in operation, generates a reception weight based on the interfering-signal power and separates the plurality of data signals from each other based on the reception weight.

Abstract: Data is scrambled at a transmitter according to one of a number of predetermined scrambling sequences which are associated with a particular one of a number of predetermined transmit antenna diversity schemes (i.e., a specific number of transmit antenna ports). Received data is decoded using one or more of the known transmit antenna diversity schemes and the scrambled data is descrambled according to a corresponding descrambling sequence (related to the scrambling sequence). Based on the descrambled data, the receiver determines which transmit antenna diversity scheme (i.e., the number of antenna ports) is used by the transmitter. In one specific embodiment, CRC parity data is scrambled in the transmitter and the receiver descrambles the recovered CRC parity data according to a descrambling sequence, computes CRC parity data from the received data, and compares the descrambled CRC parity data to the newly computed CRC parity data.

Abstract: A transmitting apparatus is provided.

Abstract: In order to provide an underwater radio communication system which stably uses wideband modulated signal to communicate with electromagnetic waves, this underwater radio communication system, for communicating underwater between a transmission unit and a receiving unit with electromagnetic waves, has a distortion compensation unit which compensates for distortion resulting from propagation in water in accordance with the frequency of the electromagnetic waves.

Abstract: The present invention provides a reference signal transmitting method and device, and a reference signal receiving method and device. The transmitting method comprises: determining the position of a time-frequency resource for a reference signal a transmission time interval (TTI) according to a preset manner; and transmitting the reference signal according to the position of the time-frequency resource. The present invention solves the problem in the related art of high processing delay of a user equipment (UE) that occurs because a DMRS is later-positioned, and reduces the processing delay of the UE.

Abstract: A method and an apparatus for determining a time offset are disclosed. The method includes: obtaining, by a device at a head end, a time-domain signal based on a received signal; and then determining a time offset based on values of peak-to-average ratios of a preset quantity of symbols starting from a qth symbol in the time-domain signal, where a peak-to-average ratio of the qth symbol is greater than a preset threshold. A new method for determining a time offset is provided, and takes advantages that the time-domain signal obtained by the device at the head end has stronger capabilities of resisting interference such as frequency offset and phase noise. The method for determining a time offset can be applied both to initial ranging and periodic ranging.

Abstract: The invention is directed to systems, methods, and computer program products for determining timing relationships of pilot and data in mobile network communications. Specifically, an uplink (UL) transmission is received at a base station (BS) from a user equipment (UE) in network communication with the BS via a communication channel. Based on the UL transmission, a channel coherence time is determined indicating a period of time during which the communication channel is considered to be substantially unchanged. In response, a total transmission duration is determined based on the channel coherence time indicating a period of time associated with transmission of a data frame.

Abstract: Aspects described herein relate to communicating feedback in wireless communications. A user equipment (UE) can receive, in a downlink portion of a slot, data communications from a base station, where the data communications comprise multiple code blocks received in one or more downlink symbols. The UE can generate one or more feedback bits to provide feedback for the multiple code blocks. The UE can transmit, to the base station and in an uplink portion of the slot, an indication of the one or more feedback bits.

Abstract: A communications device transmitting/receiving signals to/from a mobile communications network includes one or more network elements providing a wireless access interface for the communications device. The wireless access interface includes plural communications resource elements across a host frequency range of a host carrier, and a first section of the communications resources within a first frequency range for preferable allocation to reduced capability devices forming a first reduced bandwidth carrier and a second section of the communications resources within a second frequency range for preferable allocation to the reduced capability devices forming a second reduced bandwidth carrier. Each of the first and second frequency ranges is within the host frequency range.

Abstract: The present invention provides for transmitting a spread signal in a mobile communication system. The present invention includes spreading a signal using a plurality of spreading codes, wherein the plurality of spreading codes have a spreading factor, multiplexing the spread signal by code division multiplexing, transmitting the multiplexed signal via a plurality of neighboring frequency resources of one OFDM symbol of a first antenna set, and transmitting the same multiplexed signal via a plurality of neighboring frequency resources of one OFDM symbol of a second antenna set.

Abstract: A wireless communication system includes a transmitter that discretely inserts null subcarriers into an OFDM-demodulated signal in time and frequency domains, and a receiver that receive signals by a first and second antennas. The receiver calculates a complex coefficient wherein a result of multiplying a first reception vector for each of the null subcarriers received by the first antenna by the complex coefficient is equal to an amplitude of a second reception vector of the corresponding null subcarrier received by the second antenna and is opposite in phase thereto, calculates a fourth reception vector by multiplying a third reception vector of any data subcarrier received by the first antenna by a coefficient that is obtained by interpolating the complex coefficient, and adds the fourth reception vector to a fifth reception vector of the any data subcarrier received by the second antenna.

Abstract: The present invention relates to a method for transmitting a vehicle to X (V2X) message performed by a terminal in a wireless communication system, characterized by mapping a coded symbol related to the V2X message on a subframe, and transmitting the V2X message based on the subframe, wherein a plurality of systematic bits and a plurality of parity bits are mapped on the subframe based on the mapping by the coded symbol.

Abstract: Provided is a sequence allocation method capable of reducing inter-cell interference of a reference signal when a ZC sequence is used as the reference signal in a mobile communication system. In the sequence allocation method, R×M sequences specified by a ZC sequence number r (r=1 to R) and a cyclic shift sequence number m (m=1 to M) are divided into a plurality of sequence groups X (X=1 to R) in accordance with the transmission band width of the reference signal, so that the ZC sequence is allocated to each cell in each sequence group unit. When it is assumed that R=9 and M=6, the number of sequences is 54. Each of the sequence groups is formed by two sequences. Accordingly, the number of sequence groups is 27. The 27 types of sequence groups are allocated to each cell.

Abstract: Methods, systems, and devices for wireless communications are described. In accordance with the described techniques, communicating devices (e.g., an encoder and decoder) may apply an orthogonal cover code to a polar codeword to reduce cross-correlation between different codewords. For example, such techniques may reduce power consumption at a decoding device by providing for earlier decoding termination (e.g., as a result of the reduced cross-correlation). Techniques for generating the cover codes (e.g., on a per-aggregation level basis) and applying the cover codes (e.g., within a search space) are described. Additionally or alternatively, the described techniques may relate to seeding of reference signals used to support decoding of the codewords. Improved orthogonality between reference signal seeds may further suppress codeword recipient ambiguity.