Abstract: A multipath communication system forms a complex weighted compound signal for transmission through a channel environment wherein the compound signal includes a complex variable weighted compound signal related to a count of available antennas, a power constraint related to each said antenna, and a channel state characteristic.

Abstract: The disclosure discloses a high-efficiency short training field sequence generation method, a signal sending method, a signal receiving method, and related apparatuses, where the high-efficiency short training sequence generation method includes: increasing frequency domain density of a frequency domain sequence corresponding to a first high-efficiency short training field sequence to generate a frequency domain sequence with increased frequency domain density; generating a second high-efficiency short training field sequence according to the frequency domain sequence with increased frequency domain density; and using the second high-efficiency short training field sequence as a high-efficiency short training field sequence in a preamble sequence of a data transmission frame in a wireless local area network WLAN.

Abstract: Embodiments of the present disclosure provide a signal transmission method, network device, and terminal device. The method includes: determining a first time-frequency resource; obtaining a second time-frequency resource and a third time-frequency resource based on the first time-frequency resource and a preset rule, where the third time-frequency resource includes at least one resource element (RE) at a predefined location in the first time-frequency resource, the second time-frequency resource includes a resource other than the third time-frequency resource in the first time-frequency resource, the preset rule indicates the predefined location, the second time-frequency resource is used to carry a beamformed control channel, and the third time-frequency resource is used to carry a reference signal of the beamformed control channel.

Abstract: Various features related to using a multi-port synchronization signal as reference for demodulating a multi-port broadcast channel are described. In an aspect, a synchronization signal, e.g., SSS, may be repurposed to serve as a demodulation reference for a downlink channel, e.g., PBCH, thereby obviating the need for a base station to send an additional reference signal for PBCH demodulation. A base station may select two or more logical antenna ports to transmit a synchronization signal, transmit the synchronization signal from the selected two or more logical antenna ports, and transmit information on the PBCH, from at least the selected two or more logical antenna ports. A UE may receive the synchronization signal from the two or more logical antenna ports at the base station, receive information on the PBCH from the at least the two or more logical antenna ports, and demodulate the information based on the received synchronization signal.

Abstract: Provided are M signal processors that respectively generate modulated signals for M reception apparatuses (where M is an integer equal to 2 or greater), a multiplexing signal processor, and N antenna sections (where N is an integer equal to 1 or greater). When transmitting multiple streams, each of the M signal processors generates two mapped signals, generates first and second precoded signals by precoding the two mapped signals, periodically changes the phase of signal points in the IQ plane with respect to the second precoded signal, outputs the phase-changed signal, and outputs the first precoded signal and the phase-changed second precoded signal as two modulated signals. When transmitting a single stream, each of the M signal processor outputs a single modulated signal. The multiplexing signal processor multiplexes the modulated signals output from the M signal processors, and generates N multiplexed signals. The N antenna sections respectively transmit the N multiplexed signals.

Abstract: Methods for managing hybrid automatic repeat request (HARQ) feedback are disclosed, where HARQ feedback operations by a receiving device may be modified. A receiving device may receive a data transmission. The receiving device may evaluate a condition for determining how to provide HARQ feedback in response to the data transmission. The receiving device may modify a HARQ feedback operation based at least in part on the condition. Modification of HARQ feedback operations may include turning off HARQ feedback, excluding negative acknowledgment (NAK) reporting, or excluding acknowledgement (ACK) reporting.

Abstract: Examples described herein include systems and methods which include wireless devices and systems with examples of mixing input data with coefficient data. For example, a computing system with processing units may mix the input data for a transmission in a radio frequency (RF) wireless domain with the coefficient data to generate output data that is representative of the transmission being processed according to the wireless protocol in the RF wireless domain. A computing device may be trained to generate coefficient data based on the operations of a wireless transceiver such that mixing input data using the coefficient data generates an approximation of the output data, as if it were processed by the wireless transceiver. Examples of systems and methods described herein may facilitate the processing of data for 5G wireless communications in a power-efficient and time-efficient manner.

Abstract: A receiving apparatus includes: a first decoder configured to decode a signal transmitted through a first layer from a layered division multiplexing (LDM) signal using a parity check matrix to generate low density parity check (LDPC) information word bits and parity bits; an encoder configured to encode the LDPC information word bits, generated by decoding the signal transmitted through the first layer, using the parity check matrix to generate parity bits corresponding only to preset columns in the parity check matrix; and a second decoder configured to decode a signal obtained by removing, from the LDM signal, a signal corresponding to the LDPC information word bits generated by decoding the signal transmitted through the first layer, the parity bits generated by the encoder, and the parity bits generated by the first decoder except the parity bits generated by the encoder, thereby to generate information word bits transmitted through a second layer.

Abstract: An aircraft remote network, device, and method are disclosed. The network may include a central data management unit (CDMU) and one or more aircraft systems, where each system may include an antenna and one or more units, through which radio frequency (RF) signals are transmitted and/or received. The device could receive a RF signal from an external source via the antenna, convert the signal to data, and provide the data to the CDMU; and receive data from the CDMU, convert the data to an RF signal, and provide the RF signal to the external source via the antenna, where the distance between the antenna and the device is less than the distance between the device and the CDMU.

Abstract: This application provides a PBCH transmission method and an apparatus. The method includes: receiving, by a terminal device, a PBCH sent by a network device, where the PBCH includes seven most significant bits of an SFN of a radio frame in which the PBCH is located; determining, by the terminal device, a least significant bit of the SFN based on indication information of the least significant bit of the SFN; determining, by the terminal device based on the PBCH, a scrambling code of the PBCH, and determining two remaining bits of the SFN based on a one-to-one correspondence between the two remaining bits of the SFN and the scrambling code of the PBCH; and determining, by the terminal device, the SFN of the radio frame in which the PBCH is located.

Abstract: The present disclosure relates to a method that includes calculating a first frequency drift associated with an oscillator at a current temperature; based on the calculation, generating a first signal indicative of temperature compensation data; generating a second signal indicative of packet data and a modulation scheme; using the first signal, the second signal, and a first predetermined signal to generate a first tuning signal; and using the first tuning signal to tune a first capacitor array coupled to the oscillator and a second tuning signal to tune a second capacitor array coupled to the oscillator such that (i) the oscillator generates a modulated RF signal indicative of the packet data and (ii) the modulated RF signal has a second frequency drift that is less than a threshold.

Abstract: An on-chip scope and a method for operating the on-chip scope. The on-chip scope includes a provision for operating in one of two states, the effects of voltage offsets being different in the two states. A first voltage is measured in the first state, a second voltage is measured in the second state, and the two measurements are combined to generate a voltage estimate in which the effects of voltage offsets are reduced.

Abstract: Techniques for facilitating device-to-device (D2D) communications using a high efficiency distributed channel access scheme are generally described herein. In some examples, a communication zone allocated for wireless D2D communications is divided into resource contention and scheduled transmission portions. The resource contention segment may be used to transmit a request message from a transmitting device to a receiving device (a request-to-send message), and transmit a response to the request message from the receiving device to the transmitting device (a clear-to-send message). The response can indicate a time for the data transmission to occur during the scheduled transmission segment. During the scheduled transmission segment, the scheduled data transmission and other D2D data transmissions among the various devices will be performed. In further examples, contention access techniques may be used during the resource contention segment to manage access to the resource channel.

Abstract: An apparatus and method for multiplexing signals using layered division multiplexing are disclosed. A signal multiplexing apparatus according to an embodiment of the present invention includes a combiner configured to combine a core layer signal and an enhanced layer signal at different power levels to generate a multiplexed signal, a power normalizer configured to reduce power of the multiplexed signal to power corresponding to the core layer signal, and a time interleaver configured to perform interleaving applied to both the core layer signal and the enhanced layer signal.

Abstract: A wireless telecommunications system comprises a network infrastructure equipment, and a terminal device configured to communicate over a radio interface that supports a downlink channel for conveying a message from the network infrastructure equipment to the terminal device. The network infrastructure equipment is configured to selectively transmit the message with a number of repetitions. The message is transmitted on radio resources selected by the network infrastructure equipment from a plurality of candidates for radio resources that define a search space for the terminal device to search for the message. The plurality of candidates comprise candidates associated with a number, N, of different repetition levels for the transmission of a message. Different repetition levels correspond with different numbers of repetitions for the transmission of a message.

Abstract: A system and method employ an exclusive-OR gate having a first input configured to receive an RF carrier signal having an RF carrier, and a second input configured to receive a square wave signal having a square wave frequency, to output to a signal processing channel under test a binary phase shift keying (BPSK) signal comprising the RF carrier signal modulated by the square wave signal. A digital signal processor is configured to receive from the signal processing channel in-phase (I) and quadrature-phase (Q) data produced by the signal processing channel in response to the BPSK signal, and to process the I and Q data to determine an amplitude response and phase response of the signal processing channel as a function of frequency.

Abstract: An apparatus and method for generating a broadcast signal frame corresponding to a time interleaver supporting a plurality of operation modes are disclosed.

Abstract: Configurations of system information blocks providing cell access information supporting wideband coverage enhancement in wireless communication networks are disclosed. Embodiments encode and transmit information elements for both a legacy system information block and a wideband coverage enhancement system information block in a multiple subframe discovery reference signal configuration. For example, embodiments may utilize a two subframe CR-DRS configuration in which a WCE SIB-MF1 message payload is encoded and transmitted independently with respect to a legacy SIB-MF1 message payload. Additionally, or alternatively, embodiment may utilize a two subframe CR-DRS configuration in which both a legacy SIB-MF1 message payload and a WCE SIB-MF1 message payload share the same DRS subframe payload by jointly encoding the legacy SIB-MF1 and WCE SIB-MF1 messages.

Abstract: A transmission device connects a plurality of transmission device by a ring network. The transmission device includes a generating unit, a transmission unit, a determination unit, and a setting unit. The generating unit generates a test signal. The transmission unit transmits the generated test signal to a first transmission device provided immediately downstream in the ring network. The determination unit determines whether a transmission characteristic of the own device on the basis of the test signal measured by the first transmission device is acquired from a second transmission device provided immediately upstream by rounding the ring network. The setting unit sets, on the basis of the acquired transmission characteristic when the transmission characteristic of the own device is acquired, a control level related to the transmission performed by the transmission unit.

Abstract: A system and method for system and method for multiplexing control and data channels in a multiple input, multiple output (MIMO) communications system are provided. A method for transmitting control symbols and data symbols on multiple MIMO layers includes selecting a first set of codewords from Ncw codewords, distributing control symbols onto the first set of layers, placing data symbols of the first set of codewords onto the first set of layers, placing data symbols of the (Ncw-Ncw1) remaining codewords to remaining layers if Ncw>Ncw1, and transmitting the multiple MIMO layers. The first set of codewords is associated with a first set of layers from the multiple MIMO layers, and the Ncw codewords are to be transmitted simultaneously and the first set of codewords comprises Ncw1 MIMO codewords, where Ncw and Ncw1 are integers greater than or equal to 1. The remaining layers are MIMO layers from the multiple MIMO layers not in the first set of layers.

Abstract: Transmission of baseband and carrier-modulated vector codewords, using a plurality of encoders, each encoder configured to receive information bits and to generate a set of baseband-encoded symbols representing a vector codeword; one or more modulation circuits, each modulation circuit configured to operate on a corresponding set of baseband-encoded symbols, and using a respective unique carrier frequency, to generate a set of carrier-modulated encoded symbols; and, a summation circuit configured to generate a set of wire-specific outputs, each wire-specific output representing a sum of respective symbols of the carrier-modulated encoded symbols and at least one set of baseband-encoded symbols.

Abstract: An apparatus for generating a radio frequency signal is provided. The apparatus includes a modulator configured to generate the radio frequency signal based on an input signal. Further, the apparatus includes a controller configured to control the modulator to generate the radio frequency signal using polar modulation, if the input signal has a first characteristic. The controller is configured to control the modulator to generate the radio frequency signal using quadrature modulation, if the input signal has a different second characteristic.

Abstract: A method and apparatus in a communication system. The method includes: detecting multiple signal peaks of a target exceeding a predetermined threshold magnitude set to constitute one or more peak clusters; generating one or more noise shaping pulse clusters; assigning one or more noise shaping pulse clusters to the detected signal peaks in one or more peak clusters to clip the detected signal peaks in frequency domain; calculating an output signal based on the clipped signal peaks; the noise shaping pulse cluster comprises multiple sub-noise shaping pulses, bandwidths of the multiple sub-noise-shaping pulses are overlapped and a bandwidth of the noise shaping pulse cluster is greater than the bandwidth of the target signal.

Abstract: Embodiments of the present invention provide a data communication method and a related device. The data communication method may include performing, by a first communications device, power adjustment on Q codebooks using Q power factors, to obtain power-adjusted Q codebooks, where Q is a positive integer, and the Q power factors and the Q codebooks are in a one-to-one correspondence and mapping, by the first communications device, Q to-be-transmitted bit sequences to Q codewords in the power-adjusted Q codebooks, where the Q bit sequences and the Q codewords are in a one-to-one correspondence. The method also includes obtaining, by the first communications device, a modulation symbol based on the Q codewords and sending, by the first communications device, the modulation symbol on a resource block.

Abstract: A wireless communication device (WCD) generates and transmits wireless broadband signals (WBS) at a power level that is below a spurious emissions mask such that the transmitted WBS occupy a designated frequency spectrum band. The WCD transmits duty cycle bursts of the WBS and determines range, position and/or movement based on the transmitted burst of the WBS. A bandwidth of the wireless broadband signals may occupy approximately 800 MHz within a range of 0 Hz to 1 GHz. The transmit power utilized for transmitting the WBS may be spread over a bandwidth of approximately 300 MHz within the 800 MHz bandwidth. The spreading results in a power spectral density of the transmitted WBS approximating thermal noise at a distance of approximately 3 meters. A course range may be determined utilizing wireless signals other than the transmitted bursts and a fine range may be determined utilizing the transmitted bursts.

Abstract: Systems and methods are provided for peak to average power ratio (PAPR) reduction in multichannel transmissions. A plurality of frequency-domain symbols may be generated and assigned to a plurality of subcarriers associated with a multichannel transmission. The subcarriers may be assigned to a plurality of channels used for the multichannel transmission, with a number of the channels being different than a number of the subcarriers. A plurality of time-domain signals corresponding to the plurality of channels may be generated, and an adjustment may be applied to at least one time-domain signal, to generate a corresponding adjusted time-domain signal. The adjustment may be configured based on one or more characteristic associated with at least two of the frequency-domain symbols. Handling related information may be communicated form the transmit-side to the receive-side, such as using spare carriers, to enable handling an output corresponding to the plurality of time-domain signals.

Abstract: A method, system, and recording medium for web Application Programming Interface (API) recommendation, including given a plurality of service description document, gathering a bag of words from the document, generating a service-word matrix based on the bags of words describing the service descriptions, and given a query by a user, recommending a ranked list of services based on the service-word matrix.

Abstract: A wireless communication device detects presence of a peer wireless communication device within operating range and pairs with the detected peer wireless communication device. The wireless communication device and the peer wireless communication device are operable to communicate wireless broadband signals at a power level that is below a spurious emissions mask using broadband near field communication with full spectrum capture. The pairing may be controlled based on the determined distance between the wireless communication device and the peer wireless communication device. A determination is made whether to utilize security to enable the pairing based on the determined distance. A range of the communicated wireless broadband signals may be limited to provide secure communication between a plurality of wireless communication devices that communicate utilizing the wireless broadband signals. Content is shared among the plurality of wireless communication devices based on the limiting.

Abstract: Methods and systems for an optoelectronic built-in self-test (BIST) system for silicon photonics optical transceivers are disclosed and may include, in an optoelectronic transceiver having a transmit (Tx) path and a receive (Rx) path, where the Rx path includes a main Rx path and a BIST loopback path: generating a pseudo-random bit sequence (PRBS) signal, generating an optical signal in the Tx path by applying the PRBS signal to a modulator, communicating the optical signal to the BIST loopback path and converting to an electrical signal utilizing a photodetector, the photodetector being a replica of a photodetector in the main Rx path, and assessing the performance of the Tx and Rx paths by extracting a PRBS signal from the electrical signal. The transceiver may be a single complementary-metal oxide semiconductor (CMOS) die or in two CMOS die, where a first comprises electronic devices and a second comprises optical devices.

Abstract: According to an embodiment of the present invention, a method for managing a network allocation vector (NAV) by a station (STA) in a wireless LAN system supporting a high efficiency physical layer protocol data unit (HE PPDU) comprises the steps of: receiving a frame including an HE-SIG A field and an MAC header; and updating an NAV on the basis of a transmission opportunity duration (TXOP) field included in the HE-SIG A field, wherein, in the step of updating the NAV, the STA may set, for the NAV of the STA, a TXOP duration value indicated by the TXOP duration field when the TXOP duration value indicated by the TXOP duration field is larger than a current NAV value configured by the STA, and the STA may reset the NAV of the STA without comparison with the current NAV value when the TXOP duration field indicates a predetermined value.

Abstract: An efficient communications apparatus is described for a vector signaling code to transport data and optionally a clocking signal between integrated circuit devices. Methods of designing such apparatus and their associated codes based on a new metric herein called the “ISI Ratio” are described which permit higher communications speed, lower system power consumption, and reduced implementation complexity.

Abstract: Embodiments of the present disclosure relate to an OFDM-based data transmission method and an apparatus. In one example method, a transmitting device generates a data packet. The data packet comprises at least one orthogonal frequency division multiplexing (OFDM) symbol. The OFDM symbol comprises N sequentially numbered subcarriers. The N subcarriers are divided into L subblocks. Each subblock of the L subblocks comprises ?N/L? subcarriers including M pilot subcarriers. Start subcarriers of adjacent subblocks are adjacently numbered subcarriers. A numbering interval is the same for adjacent subcarriers in each subblock of the L subblocks. Each subblock of the L subblocks corresponds to one phase rotation signal. Signals carried on the subcarriers in each subblock of the L subblocks are signals obtained by multiplying original signals by a corresponding phase rotation signal. The transmitting device sends the data packet.

Abstract: Methods and systems are provided for transmitting data using an orthogonal pules shape multiplexing scheme. A transmitter can receive a vector comprising a plurality of symbols. A plurality of continuous pulses can be designed, with each of the continuous pulses corresponds to one of the plurality of symbols in the received vector. Any two pulses selected from the plurality of continuous pulses can be orthogonal. The plurality of continuous pulses can be sampled to produce a corresponding plurality of discrete pulses. The received vector can be transformed based on a transform matrix constructed using on the plurality of discrete pulses. The transformed vector can be transmitted to a receiver.

Abstract: Antenna systems and related methods are disclosed. An antenna system includes an antenna controller configured to operably couple to an array of electromagnetic (EM) scattering elements. The controller is configured to determine a performance parameter of the antenna system for a plurality of different combinations of different spatial holographic phases and effective mode indices having different modulation patterns corresponding thereto, and select one of the modulation patterns based on the performance parameter corresponding thereto. A method includes storing data indicating a modulation pattern determined based on a spatial holographic phase and an effective mode index for each of a plurality of different main beam angles from the antenna, and controlling the antenna to operate with a main beam pointed in each of the plurality of different main beam angles by controlling the antenna to operate in each modulation pattern corresponding to the plurality of main beam angles.

Abstract: According to one aspect of the present disclosure, there is provided a device that includes: a first quadrature modulator configured to receive an in-phase portion of a baseband signal and a quadrature portion of the baseband signal, and to produce a first portion of an output signal according to the in-phase and quadrature portions of the baseband signal; a second quadrature modulator configured to receive a first modified signal and a second modified signal, and to produce a second portion of the output signal according to the first and second modified signals; an output circuit configured to sum the first and second portions of the output signal, and to transmit the output signal to an antenna; and a mode selection circuit configured to turn on the first quadrature modulator, to receive a control signal, and to determine whether to turn on the second quadrature modulator according to the control signal.

Abstract: A transmitter transmits data using Orthogonal Frequency Division, OFDM, symbols. The transmitter comprising a forward error correction encoder configured to encode the data to form forward error correction encoded frames of encoded data cells, a service frame builder configured to form a service frame for transmission comprising a plurality of forward error correction encoded frames, a convolutional interleaves comprising a plurality of delay portions and configured to convolutionally interleave the data cells of the service frames, a modulation symbol mapper configured to map the interleaved and encoded data cells of the service frames onto modulation cells, and a modulator configured to modulate the sub-carriers of one or more OFDM symbols with the modulation cells.

Abstract: Video of an above ground effect of a subterranean event is received. The subterranean event is identified using Eulerian video magnification of the received video.

Abstract: The disclosure provides a non-orthogonal multiple access data transmission method and a transmission device using the same. The method includes: performing channel encoding for a plurality of data and a plurality of identifiers respectively corresponding to the plurality of data by using Raptor code so as to generate a Raptor codeword, wherein the plurality of identifiers respectively correspond to a plurality of receiving terminals; and modulating the Raptor codeword to generate a plurality of modulation symbols and broadcasting the plurality of modulation symbols.

Abstract: A transmitting radio node (10) precodes a transmission from a one-dimensional antenna array (12) to a receiving radio node (50). The array (12) includes co-polarized antenna elements (14) aligned in the array's only spatial dimension. The transmitting radio node (10) precodes the transmission from each of different subarrays (34a, 34b) of the antenna elements (14) using a coarse-granularity precoder that is factorizable from a multi-granular precoder targeting the given spatial dimension of the array (12) at different granularities, so as to virtualize the subarrays (34a, 34b) as different auxiliary elements (38a, 38b). The transmitting radio node (10) also precode the transmission from the different auxiliary elements (38a, 38b) using one or more finer-granularity precoders that are also factorizable from the multi-granular precoder. In this case, the coarse granularity precoders and the one or more finer-granularity precoders are represented within one or more codebooks (26) used for said precoding.

Abstract: A method includes: determining a maximum orthogonal frequency division multiplexing OFDM symbol quantity of a frequency band used for downlink transmission, where the maximum OFDM symbol quantity of the frequency band is a maximum value of maximum OFDM symbol quantities of all subbands of the frequency band; determining, according to a value relationship between a maximum OFDM symbol quantity of a subband to which user equipment belongs and the maximum OFDM symbol quantity of the frequency band, additional long training field instruction information used to instruct whether to send an additional long training field to the user equipment; and sending an indication message to the user equipment, where the indication message includes the additional long training field instruction information.

Abstract: A method includes: determining a Cyclic Shift (CS) parameter that implicitly indicates an orthogonality allocation rule and orthogonality-related information, by determining a multiple access state of a User Equipment (UE), and transmitting the determined CS parameter to the UE, wherein the orthogonality-related information includes an Orthogonal Cover Code indicated by the CS parameter, the orthogonality allocation rule is determined as a uniform scheme or a non-uniform scheme according to the CS parameter, determining the CS parameter by which the non-uniform scheme is applied if the UE is in a Single User Multiple Input Multiple Output state, and determining the CS parameter by which the uniform scheme is applied if the UE is in a Multiple User Multiple Input Multiple Output state.

Abstract: Methods and apparatus are provided to define sub-bands within a downlink (DL) system bandwidth or within an uplink (UL) system bandwidth, to configure sub-bands for DL signaling or for UL signaling, and to transmit or receive DL signaling or UL signaling with repetitions in the configured sub-bands.

Abstract: Methods and apparatus are provided to define sub-bands within a downlink (DL) system bandwidth or within an uplink (UL) system bandwidth, to configure sub-bands for DL signaling or for UL signaling, and to transmit or receive DL signaling or UL signaling with repetitions in the configured sub-bands.

Abstract: Provided is control information related to polarizations of antennas for MISO communication. The control signal generator generates polarization information indicating whether antennas used for transmission by MISO have only a first polarization or have a second polarization as well as the first polarization. With this structure, the present invention allows for the use of combinations of SISO, MISO and MIMO, taking the polarization of antennas. Furthermore, the present invention enables the receiver to reduce the power consumption.

Abstract: An operating mode change method of a wireless local area network (WLAN) system according to an exemplary embodiment includes transmitting, by a station (STA) to an access point (AP), an operating mode change request frame comprising at least one of information on a change of a traffic indication map (TIM) mode, a request for a change of a power save parameter, and information on a change of a service type of the STA, receiving, from the AP, an operating mode change response frame comprising at least one of a TIM mode allowed by the AP, a reallocated association identification (AID), and information on a changed power save parameter, and performing at least one of the change of the TIM mode and the change of the power save parameter based on the information included in the operating mode change.

Abstract: A method and an apparatus are provided for transmitting and receiving signaling information in a digital broadcasting system. First signaling information for a physical layer is encoded to generate a first coded block. Second signaling information is encoded to generate a second coded block. A frame including the first coded block, the second coded block and at least one physical layer pipe (PLP) data is transmitted. The first signaling information has a fixed number of bits. The second signaling information has a variable number of bits. The first signaling information includes information indicating a forward error correction (FEC) type of the second signaling information for receiving the second information. The second signaling information includes information indicating an FEC type used for a related PLP data.

Abstract: The present invention discloses a method and device for downlink multi-user (DL MU) transmission in a wireless communication system. In particular, the method for downlink multi-user data transmission in the wireless communication system includes the steps of receiving, by a station (STA), a DL MU data frame from an access point (AP) and transmitting, by the STA, an acknowledgement (ACK) frame in response to the DL MU data frame, wherein a plurality of ACK frames transmitted by a plurality of STAs in response to the DL MU data frame is multiplexed to configure an uplink multi-user (UP MU) ACK frame, and the time and/or size of a frequency resource at which the ACK frame is transmitted may be determined according to the level of a modulation and coding scheme (MCS) that is applied to the ACK frame.

Abstract: Methods, a wireless device (110) and a radio network node (120) for managing a control block are disclosed. An extended Temporary Flow Identifier, eTFI, is assigned to the wireless device (110) by the radio network node (120). The radio network node (120) constructs the control information. The radio network node (120) performs a bit-wise modulo two addition with a control block and a combination of the eTFI and a pre-determined bit pattern to obtain a modified control block. The radio network node (120) adds channel coding redundancy. The radio network node (120) maps the modified control block onto physical resources. The radio network node (120) sends the modified control block to the wireless device (110). The wireless device (110) decodes the received modified control block removing the channel coding redundancy, performs a bit-wise modulo two addition between the modified control block and a combination of the eTFI and a pre-determined bit pattern to obtain a control block.

Abstract: Embodiments of the disclosure relate to supporting cooperative transmission in massive multiple-input multiple-output (MIMO) systems, such as a wireless distribution system (WDS). A WDS includes a plurality of remote units each defining a home coverage cell. A selected remote unit can coordinate with a neighboring remote unit(s) to help mitigate inter-cell interference for a selected client device(s) located in an overlapping coverage area between the home coverage cell of the selected remote unit and a neighboring coverage cell(s) defined by the neighboring remote unit(s). The selected remote unit receives channel-data information from the selected client device(s) and forms a first radio frequency (RF) beam based on the channel-data information to distribute a downlink signal(s) to the selected client device.

Abstract: A method of transmitting data in a wireless communication system is provided. The method includes generating duplicate data by using repetition coding, the duplicate data being the same as original data, shifting the phase of the duplicate data, and transmitting the original data and the phase-shifted duplicate data. The duplicate data is mapped to a modulation symbol having a different size or phase as that of the original data, thus to reduce the PAPR unlike the general repetition coding.