Abstract: Various aspects of the disclosure relate to feedback for independent links. For example, channel state feedback may be based on the channel state of multiple links. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). In some scenarios, channel state information (CSI) feedback may take into account the CSI-reference signals (CSI-RSs) from multiple links. For example, CSI feedback may be based on CSI-RSs from multiple links if the antenna sub-arrays for the links are close to one another. As another example, a decision as to whether CSI feedback is to be based on CSI-RSs from multiple links may depend on channel conditions.

Abstract: A system facilitating dynamic layer mapping with multiple downlink control channels wireless communication system is provided herein. In one example, a method, comprises: determining, by a BS device, for a selected mobile device, a type of downlink control channel configuration to transmit to a mobile device; and in response to determining to transmit multiple downlink control channels as the type of downlink control channel configuration, identifying a layer to couple to the downlink control channel configuration. Determining the type of downlink control channel configuration to transmit can comprise: determining to transmit multiple downlink control channels if a rank is higher than a defined value; and determining to transmit a single control channel in lieu of transmitting the multiple control channels if a rank is less than or equal to the defined value. The method can also include scheduling the layer for transmission to the mobile device.

Abstract: The present invention discloses an indication information transmission method and apparatus. The method includes: determining, in one or more codebooks, a first codebook used to send a first downlink data stream to a terminal device; determining one or more second codebooks used to send a second downlink data stream; determining codebook indication information used to indicate the first codebook and the one or more second codebooks; and sending the codebook indication information to the terminal device.

Abstract: A method of determining reserved tones to be used for reduction of a peak to average power ratio (PAPR) of a signal includes: randomly selecting carrier indices for the reserved tones and generating a kernel signal based on the randomly selected carrier indices; calculating a comparison reference average value of the kernel signal, comparing the calculated comparison reference average value with a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the comparison; randomly re-arranging an order of the preliminarily determined carrier indices of the reserved tones; and calculating the comparison reference average value while changing each of the re-arranged indices of the reserved tones, and finally determining carrier indices for which the calculated comparison reference average value becomes the smallest value as carrier indices of the reserved tones.

Abstract: A data storage device includes a controller and a memory. The controller includes a host interface and a memory interface. The controller performs a first operation on the memory through the memory interface at a first frequency associated with the host interface to determine a first data pattern. The controller performs a read operation on the memory through the memory interface at a second frequency to determine a second data pattern. The controller changes the first frequency by a predetermined amount until the first frequency is equal to a maximum operating frequency having an associated risk of a setup/hold violation that is below a predetermined probability.

Abstract: Embodiments of the present application provide transmission control methods and transmission control apparatus. A method disclosed herein comprises: determining transmission capability of a first device; and determining transmission configuration between the first device and a second device at least according to the transmission capability of the first device, the transmission configuration comprising information associated with at least two multiple-input-multiple-output (MIMO) channels available for data transmission between the first device and the second device. The method and apparatus of the embodiments of the present application support that at least two separate MIMO channels coexist between an access terminal (AT) device and an access point (AP) device as well as between two AT devices, which have flexible configuration while ensuring a higher data transmission rate, and computational complexity is not high for the devices, which can reduce power consumption of the devices.

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. There may be provided a method for receiving a downlink by a UE that uses narrowband communication and a UE for performing the same, the method comprising the steps of: setting one subcarrier, among narrowband frequency resources assigned to the UE, as a narrowband direct current (DC) subcarrier; receiving a signal regarding the narrowband frequency resources from an eNB; and decoding the received signal on the basis of the narrowband DC subcarrier that has been set.

Abstract: An intelligent audible device is provided that is constructed to monitor for an event, such as actual or elapse time, or a sensor exceeding a threshold. Responsive to the event, a sound input transducer is activated, and an output sound signal representing an intended message is projected into the local environment by a sound output transducer. The sound input transducer captures the actual sound projected into the local environment. The captured actual sound is processed and compared to the output sound signal. In this way it may be confidently determined if the intended message was actually properly projected into the local environment.

Abstract: A method in a first wireless node for transmitting a reference signal is provided. The first wireless node operates in a wireless communications network. The first wireless node transmits the reference signal from at least two transmit antennas of the first wireless node. The reference signal is transmitted with a phase between the at least two transmit antennas indicating a desired phase related to radio conditions for reception of a transmission from a first radio node at the first wireless node. The reference signal is to be received and taken into account by one or more other radio nodes in the wireless communications network, e.g. when scheduling transmissions to other wireless nodes.

Abstract: In dependence on interference information, one or more resource block groups are allocated from a frequency carrier for use by one set of plurality multiple sets of UEs. The frequency carrier includes one or more first resource block groups to be used for a beam forming mode and one or more second resource block groups to be used for a MIMO mode. This allocating can allow decreased interference between UEs using the beam forming mode and UEs using the MIMO mode. This may be applied to UEs having different DoA groups, so that different RBGs are assigned to different DoA beam forming groups to decrease interference with UEs in MIMO mode.

Abstract: Wireless communications systems and methods related to dynamic time-division duplexing (TDD) and self-contained subframe-based communications in a shared spectrum are provided. A first wireless communication device communicates a control information communication protection request over a shared spectrum. The shared spectrum is shared by a plurality of network operating entities based on priorities. The first wireless communication device is associated with a first network operating entity of the plurality of network operating entities. The first wireless communication device communicates, with a second wireless communication device associated with the first network operating entity, control information in a first link direction during a transmission opportunity (TXOP) in the shared spectrum. The first wireless communication device communicates, with the second wireless communication device, data in a second link direction during the TXOP.

Abstract: A receiver for detecting and recovering payload data from a received signal comprises a radio frequency demodulation circuit, a detector circuit and a demodulator circuit. The radio frequency demodulation circuit detects the received signal. The received signal carries the payload data as OFDM symbols in one or more of a plurality of time divided frames, each frame including a bootstrap signal, a preamble signal and a plurality of sub-frames. The demodulator circuit detects bootstrap OFDM symbols to identify communications parameters for detecting the fixed length signalling data, detects the fixed length signalling data to identify the communications parameters for detecting the variable length signalling data, detects the variable length signalling data, and uses the fixed and variable length signalling data to detect the payload data.

Abstract: A localization system comprising a plurality of wireless reference nodes for detecting a location of a mobile device within an environment. Each node transmits localization beacon signals to be detected by the mobile device, and/or listens for localization beacon signals from the mobile device. Further, the system also provides or contributes to providing another utility into the environment (e.g. each node being a luminaire); and transmits and/or listens for control-related signals, other than localization beacon signals, related to controlling the provision of said utility, the control related signals being communicated on a same or overlapping frequency band as the localization beacon signals, one or more controllers are configured to control the transmission of and/or listening for the control-related signals to be time-multiplexed into different time slots than the transmission and/or listening for the localization beacon signals, between the time-slots of the control-related signals.

Abstract: An apparatus may determine a cyclic prefix (CP) length for a signal for a communication link based on a dynamic indication. The CP length may be determined from a plurality of CP lengths. The apparatus may communicate the signal using the determined CP length. Determining the CP length may be further based on at least one of a modulation and coding scheme, a subcarrier spacing, a service type, a communication link direction, a rank number, a type or a capability of the node, or a number of nodes scheduled in the same transmit time interval. Determining the CP length may include determining a first CP length for a first symbol of a plurality of symbols in the TTI, and determining a second CP length, different than the first CP length, for a second symbol of the plurality of symbols in the TTI. Various additional and alternative aspects are described herein.

Abstract: A method includes generating a two-dimensionally filtered pilot tone based on a plurality of received pilot tones received using a first subcarrier of each of a plurality of received OFDM symbols and a plurality of data symbols received using a second subcarrier of each of the plurality of received OFDM symbols. The plurality of OFDM symbols is received sequentially over a plurality of OFDM symbol times. The method may include generating inverse channel coefficients based on the two-dimensionally filtered pilot tone. The method may include applying the inverse channel coefficients to a subsequently received OFDM symbol to recover data encoded in the subsequently received OFDM symbol. Generating the two-dimensionally filtered pilot tone may use at least one least-mean-squares filter.

Abstract: A method of determining reserved tones for reduction of a peak to average power ratio (PAPR) includes: selecting carrier indices for the reserved tones and generating a kernel signal based on the selected carrier indices; calculating a comparison reference average value of the kernel signal, selecting one of the calculated comparison reference average value and a prestored comparison reference average value, and preliminarily determining carrier indices of the reserved tones based on the selection; re-arranging an order of the preliminarily determined carrier indices; calculating a comparison reference average value of a kernel signal generated, whenever each of the re-arranged carrier indices is changed to another carrier index, to generate a plurality of comparison reference average values, and finally determining carrier indices of the reserved tones which generates a kernel signal having the smallest comparison reference average value among the comparison reference average values as the indices of the res

Abstract: Technology for a base station operable to encode guard interval (GI) discrete Fourier transform (DFT) spread orthogonal frequency-division multiplexing (OFDM) (GI-DFT-s-OFDM) data symbols for transmission to a user equipment (UE) is disclosed. The base station can identify GI-DFT-s-O 5 FDM data symbols for transmission to the UE. The base station can encode the GI-DFT-s-OFDM data symbols for transmission to the UE in a subframe. The subframe can be in accordance with a flexible subframe structure that begins with a demodulation reference signal (DMRS) sequence followed by a GI sequence in a first symbol of the subframe. The subframe can further comprise one or 10 more subsequent symbols in the subframe that each include a GI-DFT-s-OFDM data symbol followed by a GI sequence.

Abstract: Aspects of the disclosure relate to multiple-input multiple-output (MIMO) signals, and the determination of a precoding matrix for configuring the MIMO signals. An uplink traffic channel may be configured utilizing orthogonal frequency division multiplexing (OFDM) waveform. Determination of the precoding matrix may be based at least in part on an estimate of the uplink carrier, where the uplink carrier estimate is based at least in part on a downlink reference signal, exploiting channel reciprocity in a time division duplex (TDD) carrier. Determination of the precoding matrix may further be based at least in part on a cross-correlation matrix Rnn or a whitening matrix determined by a scheduling entity. Other aspects, embodiments, and features are also claimed and described.

Abstract: Aspects described herein may enable a network entity to create an mmW cell geometry and/or to seed a base station codebook and a UE codebook to improve a beamforming procedure while maintaining peak performance gain that is provided by scanning narrower beams. The network entity may provide information associated with the base station codebook and the UE codebook to the base station. The network entity may also provide, to the base station, a subframe structure to be used during a beamforming procedure that is based on the base station codebook and the UE codebook. The base station and the UE may perform the beamforming procedure based in the subframe structure using beam orientations indicated in the base station codebook and the UE codebook. From the beamforming procedure, the base station and the UE may determine an access beam to be used in communication between the base station and the UE.

Abstract: For example, a wireless station may be configured to modulate a plurality of data bit sequences into a plurality of data blocks according to a dual carrier modulation, to map the plurality of data blocks to a plurality of spatial streams according to a space-time diversity scheme, and to transmit a MIMO transmission based on the plurality of spatial streams.

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: Various aspects described herein relate to techniques for multi-cluster uplink transmissions in wireless communications systems. A method, a computer-readable medium, and an apparatus are provided. In an aspect, the method comprises receiving, by a user equipment (UE), information of one or more sounding reference signal (SRS) patterns, generating, by the UE, one or more rate matching parameters based on the information, and transmitting, by the UE, an uplink signal based on the generated one or more rate matching parameters.

Abstract: Methods and apparatuses for wireless communications are described. The aspects relate to a frame structure for new radio shared spectrum. For instance, the frame structure may provide shared medium access by multiple operators in a new radio shared spectrum system. Specifically, the present aspects provide for utilizing reservation preambles associated with a distinct operator for announcing to other operators a reservation of at least one transmission opportunity of a given frame in the new radio shared spectrum.

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). According to various embodiments, in a multiple-input multiple-output wireless communication system, a receiving apparatus may include at least one processor and at least one transceiver. The at least one transceiver may be configured to receive a signal including a plurality of symbols, perform Successive Interference Cancellation (SIC) related to a first symbol of the plurality of symbols on the received signal to obtain a processed signal, determine symbol-sums by applying an equalization matrix for integer forcing to the processed signal, and determine information words corresponding to the plurality of symbols based on the symbol-sums.

Abstract: Methods and systems are described for frequency domain correction, time domain correction, and combinations thereof. Each Long Term Evolution (LTE) uplink residual frequency offset can be determined with less than 1 part per billion accuracy simultaneously and used for frequency offset correction. The disclosed method utilizes the same modulated signals for data and control as the 3GPP LTE wireless standard and can be embedded directly into the base station (downlink) PHY without additional hardware. The use of the disclosed methods provide multiple ways to simultaneously improve the uplink data throughput for every user in an LTE multiple access wireless system.

Abstract: Provided are a cell ID determination method and apparatus for a receiving device in a wireless communication system. The cell ID determination method for a receiving device may include: receiving a first synchronization signal and a second synchronization signal; generating a first joint signal by concatenating the first synchronization signal and the second synchronization signal; calculating the correlation between the first joint signal and each of a preset number of cell IDs; and determining a cell ID using the calculated correlations.

Abstract: A method for an access point of a wireless communication network is disclosed. The access point is adapted to use a communication channel resource to communicate with a plurality of first wireless communication devices using orthogonal frequency division multiple access (OFDMA) and to communicate with a plurality of second wireless communication devices using carrier sense multiple access with collision avoidance (CSMA/CA). The communication channel resource comprises a bandwidth of frequencies, the bandwidth of frequencies being dividable into a plurality of sub-carriers for OFDMA and a part of the bandwidth of frequencies forming a primary channel for CSMA/CA. The method comprises transmitting a downlink packet over all frequencies of the bandwidth for triggering one or more of the first wireless communication devices to perform OFDMA based uplink transmission.

Abstract: An apparatus including an acquisition unit that acquires setting information from a base station; and a selection support unit that transmits an uplink reference signal for selection of a beam to be used by the base station in downlink transmission based on at least one first unit frequency band of a group including a plurality of unit frequency bands indicated by the setting information.

Abstract: One aspect of the present disclosure provides a method for detecting, by a user equipment, a PDCCH signal, the method including: receiving configurations for a plurality of search space sets from a base station; determining, based on a monitoring periodicity of each of the plurality of search space sets, search space sets for which the user equipment should monitor a PDCCH signal for a specific unit time; and attempting blind-detection selectively for only a part of PDCCH candidates included in the determined search space sets when a number of PDCCH candidates or a number of CCEs included in the determined search space sets exceed a maximum number of candidates or a maximum number of CCEs, wherein in selection of PDCCH candidates for attempting the blind-detection, the user equipment firstly selects PDCCH candidates from a first search space set related to a CSS among the determined search space sets.

Abstract: A method for transmitting data from a station (STA) device in a wireless LAN (WLAN) system, according to one embodiment of the present invention, comprises the steps of: generating a physical protocol data unit (PPDU) including a physical preamble, which includes a legacy preamble and a high efficiency-long training field (HE-LTF), and a data field; and transmitting the PPDU, wherein the data field is transmitted at four times (4×) the inverse discrete Fourier transform (IDFT)/discrete Fourier transform (DFT) cycle of the legacy preamble, the HE-LTF is a 4×HE-LTF or a 2×HE-LTF which is respectively transmitted at the four times or two times (2×) the IDFT/DFT cycle of the legacy preamble, and wherein pilot tones of the HE-LTF may be inserted only into subcarriers having an even number of indexes from among subcarriers to which the 4×HE-LTF is mapped.

Abstract: The disclosed subject matter provides asynchronous multi-point transmission schemes for MIMO networks. In one embodiment, a method includes receiving, by a device comprising a processor, a first data signal from a first TP device of a wireless communication network, wherein the first data signal comprises first code-word information generated based on a data. The method further includes receiving, by the device, a second data signal from a second TP device of the wireless communication network, wherein the second data signal comprises second code-word generated based on the data, wherein the first code-word information and the second-code word information are different, and wherein the first TP device and the second TP device are geographically separated by a threshold distance. The device can further process the first data signal and the second data signal to generate a unified data signal representative of the data.

Abstract: A mobile station is configured to perform radio communication using spatial multiplexing with a base station. The mobile station includes a selecting unit and a transmitting unit. The selecting unit selects a data unit with highest channel quality from a plurality of data units and selects a spatial layer with highest reception quality from spatial layers belonging to the data unit. The transmitting unit transmits identification information of the spatial layer selected by the selecting unit to the base station as control information.

Abstract: A method for receiving system information, the method includes receiving, by a mobile terminal, a first block of second system information from a base station, wherein the first block of second system information includes scheduling information related to a plurality of second blocks of second system information; determining, by the mobile terminal, on which resource the plurality of second blocks of second system information is received using the scheduling information; and receiving, by the mobile terminal, the plurality of second blocks of second system information from the base station on the determined resource.

Abstract: A communication device assigns i) a first orthogonal frequency division multiplex (OFDM) tone block for a communication channel to a first communication device, and ii) a second OFDM tone block to a second communication device. The first OFDM tone block and the second OFDM block each span less than or equal to 10 MHz, and are both within a subchannel that spans a 20 MHz. The communication device generates an orthogonal frequency division multiple access (OFDMA) physical layer (PHY) data unit for transmission in the communication channel. The OFDMA PHY data unit is generated to include: a legacy preamble portion having legacy signal field that spans the subchannel; and a data portion that includes i) first data for the first communication device modulated to the first OFDM tone block, and second data for the second communication device modulated to the second OFDM tone block.

Abstract: A method in a wireless device for performing random access to a network node. The method comprises receiving a set of downlink beam-specific reference signals, BRS, from the network node, and determining a preferred BRS BRS based on the received signal power for each BRS. The method also comprises selecting, based on the preferred BRS, a random-access resource to be used for transmitting a random-access attempt to the network node, as well as using the selected random-access resource when transmitting a random-access attempt to the network node, whereby the selection of random-access resource indicates to the network node which downlink beam is preferred by the wireless device to be used for downlink transmissions.

Abstract: A method is proposed for generating an OFDM type multicarrier signal including OFDM blocks constituted by M carriers modulated by source symbols. The method includes the following steps: interleaving the M symbols of a block of source symbols into R sub-blocks of N interleaved symbols; obtaining a block of M time domain samples corresponding to the block of M source symbols; forming a peak vector containing N maximum amplitudes determined from among the M samples; attenuating the extrema of each sub-block of N time domain samples corresponding to the R sub-blocks of N interleaved symbols by a correction of symbols taking account of the peak vector and delivering R sub-blocks of N corrected interleaved symbols; de-interleaving the R sub-blocks of N corrected interleaved symbols delivering a block of M corrected source symbols; generating an OFDM block of the signals corresponding to the block of M corrected source symbols.

Abstract: A method and system to signal transmission layers or dedicated reference signal ports to be used in a multiple input multiple output system, the method including providing a downlink control signal containing information for transmission layers or dedicated reference signal ports utilized, the dedicated reference signal ports being associated with the transmission layers; and using the information to demodulate data on each transmission layer.

Abstract: Embodiments of the present invention provide a pilot transmission method, a station, and an access station. The method includes: receiving, by a station, a pilot transmission notification, where the pilot transmission notification includes a pilot transmission rule of the station and a pilot transmission rule of another station on a group of continuous subcarriers; the pilot transmission rule of the station includes: the group of continuous subcarriers is divided into two subcarrier groups, pilots transmitted on subcarriers in a same subcarrier group have a same amplitude and a same phase, and pilots transmitted on subcarriers in different subcarrier groups have a same amplitude but inverse phases, and the pilot transmission rule of the another station includes: pilots transmitted on all subcarriers have a same amplitude and a same phase; and transmitting, by the station, a pilot according to the pilot transmission rule of the station.

Abstract: A method for operating a communications controller includes defining a positive integer quantity of resource element groups from a resource block with a positive integer number N resource elements in each resource element group, the resource block having a total number of resource elements, the total number of resource elements consisting of available resource elements and reserved resource elements. The method also includes assigning a plurality of available resource elements to fill in each of the positive integer quantity of resource element groups with N available resource elements in each resource element group, and blocking any unassigned available resource elements from being used in a resource element group. The method further includes interleaving a plurality of control messages onto the positive integer quantity of resource element groups, and transmitting the positive integer quantity of resource element groups.

Abstract: In one of the exemplary embodiments, the disclosure is directed to a post network entry connection method applicable to a user equipment. The method would include not limited to: receiving a time unit which may include a payload region and a downlink header region which may include a first BQMR for a first scan beam and a second BQMR for a second scan beam; obtaining a first reference signal from the first BQMR and a second reference signal from the second BQMR; calculating a first signal quality measurement by using the first reference signal and calculating a second signal quality measurement by using the second reference signal; selecting the first scan beam based on the first signal quality measurement being better than at least the second signal quality measurement; and transmitting the first signal quality measurement which corresponds to the first scan beam via another time unit.

Abstract: A System-on-a-Chip (SoC) for receiving telemetry messages over a radio-frequency (RF) channel is provided. The SoC comprises at least one RF module; at least one module for conversion of the signal from an analog form to a digital form; at least one input signal digital processing unit for filtering the signal from the RF module; and at least one memory unit. The SoC also comprises at least one processor for executing time shifting and frequency shifting of the signal. The processor is configured to process each time- and frequency-shifted signal by consecutive Fourier transforms, such that a first time element of each next transform is placed immediately after a last element of a previous transform. The processor is also configured to receive the signal, which signal was subjected to a carrier frequency change during transmission thereof, the signal having transmission frequencies that are within at least two processed spectrum sections.

Abstract: A method in a transmitter circuit of generating a signal comprising a first sequence of OFDM symbols, which are to be transmitted within a frequency sub band of a second sequence of OFDM symbols is disclosed. A first cyclic prefix (CP) of the second sequence of OFDM symbols has a first duration, and a second CP of the second sequence of OFDM symbols has a second duration. In order to generate both the first and the second cyclic prefix with an integer number of equidistant samples, a first sampling rate is required. The method comprises generating the signal comprising the first sequence of OFDM symbols at a second sampling rate, lower than the first sampling rate, and adjusting a sampling phase during CPs.

Abstract: A method to receive telemetry messages over an RF channel, the method implemented by a system on a chip, in which a signal is received from the output of an input RF module, the received signal is offset in time and frequency wherein the signal, at first, is offset in time so that the offset magnitudes uniformly fill the length of one data bit, then, the signal is offset in frequency so that the offset magnitudes uniformly fill the space between the Fourier transform subcarriers, with the frequency offsets being independent of the time offsets; each signal processed at the preceding step is subjected to sequential Fourier transforms, with the first time element of each next transform immediately following the last element of the preceding transform; all messages are demodulated independently. The technical result consists in that messages can be received over multiple channels at multiple rates.

Abstract: The present invention discloses a pilot sequence transmission method and apparatus. A terminal device determines a first pilot number, determines a first pilot sequence and a second pilot sequence according to the first pilot number, respectively maps the first pilot sequence and the second pilot sequence to a first OFDM symbol and a second OFDM symbol of a grant free transmission resource, and sends the first pilot sequence and the second pilot sequence by using the first OFDM symbol and the second OFDM symbol. Therefore, a network device can determine activeness of the terminal device by detecting the first pilot sequence, and can detect only the second pilot sequence corresponding to the first pilot sequence, and does not need to detect all possible second pilot sequences, so that a quantity of detected pilots can be significantly reduced, and pilot detection complexity is reduced.

Abstract: A 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) are provided. 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. The method for transmitting and receiving a phase compensation reference signal (PCRS) to compensate for phase noise. The method may determine whether a first precoding is applied to a demodulation reference signal (DMRS) and the PCRS to be transmitted to a terminal. The base station may also generate the DMRS and the PCRS, based on whether the first precoding is applied to the DMRS and the PCRS, and transmit data, the DMRS, and the PCRS to the terminal.

Abstract: Various aspects of the disclosure relate to communication using a data unit that includes at least one mid-amble. In some aspects, an apparatus may use mid-ambles for mobility scenarios (e.g., when the apparatus is moving outdoors). The disclosure relates in some aspects to signaling associated with the use of mid-ambles. In some aspects, an apparatus may signal whether it supports sending and/or receiving data with mid-ambles. In some aspects, an apparatus may signal whether a particular data unit includes at least one mid-amble. In some aspects, an apparatus may signal an indication of at least one mid-amble update interval. In some aspects, an apparatus may signal whether a mid-amble includes a short training field.

Abstract: A communication device generates a preamble of an uplink (UL) orthogonal frequency division multiplex (OFDM) data unit, conforming to a first communication protocol, for transmission via a communication channel. Generating the preamble of the UL OFDM data unit includes: generating a first training field that conforms to a second communication protocol; generating a second training field to be included in the preamble after the first training field, wherein the second training field is generated based on a sequence that includes non-zero values spaced apart by zero values such that the non-zero values occur at an interval of eight elements in the sequence; modulating the first training field using a first tone spacing LTS between adjacent OFDM tones; the first training field having a periodicity LP; and modulating the second training field using a second tone spacing equal to LTS/4 between adjacent OFDM tones, the second training field has a periodicity 2*LP.

Abstract: Techniques for sending control information relating to multiple downlink carriers and data on a single uplink carrier are described. A user equipment (UE) may be scheduled to transmit on a designated uplink carrier. The UE can multiplex control information for multiple downlink carriers with data for transmission on the uplink carrier in a same subframe. Multiplexing may be performed according to a type of the control information and/or an ordering, priority, or association of the downlink carriers. The UE can selectively encode the control information separately for each downlink carrier and/or jointly across downlink carriers. The control information may be mapped to a single layer or multiple layers of a data channel. The UE may send the multiplexed control information and data on the data channel in the subframe while maintaining a single-carrier waveform.

Abstract: A method and apparatus determine parameters and conditions for line of sight MIMO communication. Reference signals can be received. A channel matrix can be measured based on the reference signals. A least-squared error estimate of the measured channel matrix can be determined. A sum-squared error can be calculated based on the least-squared error estimate. The sum-squared error based on the least-squared error estimate can be compared to a threshold. The measured channel matrix can be ascertained to be classified as a line of sight multiple input multiple output channel based on comparing the sum-squared error based on the least-squared error estimate to the threshold.

Abstract: A method for configuring downlink multi-user transmission in a telecommunication network is provided. The method comprises receiving, at a first User Equipment (UE), data within a subframe wherein the data comprises a dynamic indicator; determining, by the first UE based on the received dynamic indicator, if the data within the subframe is for multi-user transmission, and if not so determined, using, by the first UE, a single-user receiver to decode the received data; and if so determined, identifying, by the first UE based on the dynamic indicator, at least one second UE that is paired with the first UE in multi-user transmission, and obtaining, by the first UE DCI information of said at least one second UE.