Abstract: A system and method for beamforming beams including: matching weights T to a distribution of resources for each of the beams based on a traffic variation for each of the beams; calculating, with a signal processor for each of the beams based on the weights T, a power scalar ? and a weighted minimum mean squared error (WMMSE) matrix WWMSE; and transmitting/receiving the beams based on the power scalar ? and the WMMSE matrix WWMSE, where the power scalar ? satisfies a total power constraint of an antenna subsystem.

Abstract: Provided are an information transmission method, a base station, a terminal and a computer-readable storage medium. The information transmission method includes: a base station sending a first message. The first message includes at least one of: at least one set of channel quality threshold values, where each of the at least one set of channel quality threshold values includes at least one channel quality threshold value; or a deviation value relative to the at least one channel quality threshold value. The at least one channel quality threshold value is set according to at least one following type of channel quality: reference signal receiving power, a reference signal receiving quality, a downlink signal to interference plus noise ratio, a downlink signal to noise ratio, an uplink signal to interference plus noise ratio, an uplink signal to noise ratio, a downlink path loss, or an uplink path loss.

Abstract: The disclosed systems and methods for compensating the polarization dependent loss (PDL) in communication networks comprising: i) filtering, by a first feed-forward filter, a current set of symbols in an equalized X-Pol signal; ii) filtering, by a second feed-forward filter, a current set of symbols in an equalized Y-Pol signal; iii) filtering, by a first feed-backward filter, a previously decided set of symbols associated with the equalized X-Pol signal; iv) filtering, by a second feed-backward filter a previously decided set of symbols associated with the equalized Y-Pol signal; v) adding, by a first adder, the outputs from the first feed-forward filter and the second feed-forward filter; and vi) subtracting, by the first adder, the outputs from the first feed-backward filter and the second feed-backward filter from the addition of outputs from the first feed-forward filter and the second feed-forward filter to determine the symbols in the equalized X-Pol signal.

Abstract: Methods, apparatuses, and computer readable media for channel state information for multiple access points are disclosed. Channel station information (CSI) may be coordinated for multiple access points (APs) where one AP may act as a master AP with other AP acting as slave APs. The channel station information may be based on information from null data packets received by stations from multiple-APs, which may enable a multi-AP coordinated beamforming (CBF) to be determined based on the received first CSI reports. New frame formats are disclosed that include fields for including APs. Overlapping basic service set (OBSS) stations may respond to APs that are not within their BSS. Some embodiments relate to passive range finding in a multi-AP sounding where location configuration information (LCI) changes for one of the APs.

Abstract: The application relates to link adaptation for extremely high throughput (EHT) systems. Various approaches are provided to enable transmission of link adaptation parameters for single-user multiple input multiple output (SU-MIMO), and multi-user multiple input multiple output MU-MIMO. In some embodiments, two control IDs in the A-control subfield are used, one for SU-MIMO and one for MU-MIMO. These can both be reserved control IDs, or a combination of a reserved control ID and control ID 2 normally used for HE link adaptation. In some embodiments, a single control ID in the A-control subfield is used. This can be a reserved control ID or control ID 2 normally used for HE link adaptation.

Abstract: A lens antenna array system for wireless communication is provided that includes a transmitter having a first lens and a receiver having a second lens. The transmitter transmits a first plurality of RF signals across a plurality of near-field communication links to the receiver. Based upon a first signal quality determination at the receiver, the transmitter adjusts a plurality of gains to increase a signal quality for a second plurality of RF signals transmitted across the plurality of near-field communication links.

Abstract: A system and a method are disclosed for estimating antenna misalignments in a line-of-sight wireless communication system and using the estimated antenna misalignments to form an optimal beam that may provide the best performance based on the channel conditions. A receiver determines a rotational estimate and a translational estimate of the receiver with respect to a transmitter, and sends feedback information to the transmitter that is used to determine an optimal beamforming matrix for LOS communications between the receiver and the transmitter. The feedback information includes estimated rotational angles and an estimated translational distance between the receiver and the transmitter, or includes an offset angle between a first plane of antennas of the receiver and a second plane of antennas of the transmitter, a normal vector of the first plane of antennas and the estimated translational distance. The antennas may be antenna arrays or single-element antennas.

Abstract: Disclosed is a transmission scheme for transmitting a first modulated signal and a second modulated signal over the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a baseband signal after a first mapping and a baseband signal after a second mapping by a precoding weight and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.

Abstract: A method for transmitting a discrete fourier transform (DFT) DFT-S-OFDM signal including frequency domain reference symbols is disclosed. The method comprises: determining to null a plurality of data symbols prior to DFT-spreading; performing DFT-spreading including the determined null data symbols; puncturing an interleaved output of the DFT-spreading; inserting reference symbols in a frequency domain of the punctured and interleaved DFT-S-OFDM signal; and transmitting the DFT-S-OFDM signal with inserted reference symbols to a receiver. The transmitted DFT-S-OFDM signal enables the receiver to apply zeros corresponding to the reference symbols to an interleaved input of DFT-despreading, and cancel interference due to the puncturing by using all outputs of the DFT-despreading.

Abstract: Systems and methods of scanning for wireless networks can use a wireless integrated package including a first radio and a second radio. The method includes providing a first probe request in a first time slot on a first channel using the first radio, and receiving a first probe response in a second time slot on the first channel using the second radio. The second time slot is at least partially contemporaneous with the first time slot. Fast parallel active scanning can be achieved.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may generate a Legendre precoder for transmission on a multiple-input multiple-output channel based at least in part on computing Legendre polynomials for a quantity of transmit antennas. The wireless communication device may transmit a communication using the Legendre precoder. Numerous other aspects are provided.

Abstract: A TX-TX pre-compensation system that estimates unwanted coupling in a victim transmit chain caused by an aggressor transmit chain and injects a pre-compensation signal to cancel out the estimated coupling. In some embodiments, a signal measurement module estimates the amplitude, phase, and envelope delay of the coupling and an isolation pre-compensation module generates the pre-compensation signal based on the estimated amplitude, the estimated phase, the estimated envelope delay, and the difference between the carrier frequencies of the transmit chains. Since the phase of the coupling may be affected by the carrier frequency of the transmit chains, in some embodiments the phase of the pre-compensation signal is adjusted in response to a change in carrier frequency. Since the amplitude of the coupling may be affected by attenuator gain settings, in some embodiments the amplitude of the pre-compensation signal may be adjusted in response to a change in attenuator gain setting.

Abstract: A configuration for beam management procedure using OAM beams. The apparatus transmits, to a receiver, a positive phase order OAM transmission on at least one beam. The apparatus transmits, to the receiver, a negative phase order OAM transmission on the at least one beam. The apparatus receives, from the receiver, a report indicating a relative phase difference between the positive phase order OAM transmission and the negative phase order OAM transmission.

Abstract: Methods and apparatus for successive interference cancellation (SIC). In an embodiment, a method includes receiving symbols from a plurality of user equipment (UE), identify a target UE and non-target UEs, decoding code blocks from the symbols received from the non-target UEs to generate decoded bits for each code block. The method also includes performing a CRC check on each code block to generate a tag (0) when the CRC check passes and a tag (1) when the CRC check fails, and re-encoding the decoded bits to generate re-encoded code blocks having the associated tags attached. The method also includes reconstructing symbols from the re-encoded code blocks where symbols reconstructed from re-encoded code blocks having tag (0) are reconstructed with data and symbols reconstructed from re-encoded code blocks having tag (1) are reconstructed as zero value symbols, and utilizing the reconstructed symbols to cancel interference on symbols from the target UE.

Abstract: This application relates to a method for designing a non-uniformly spaced linear array antenna. The method includes setting a cost function for spacing between a plurality of antennas comprised in a linear array and for weights for each of the antennas, with limits on side lobe level and bandwidth, and obtaining an initial best solution vector for the cost function under an initial environmental condition based on learning parameters. The method may further include updating the initial best solution vector through reinforcement learning in which a reward value is computed by comparing a sub best solution vector with each of a plurality of solution vectors for the cost function under a sub environmental condition based on the initial best solution vector. The method may further include determining the spacing between the plurality of antennas and the weights for each of the antennas based on the updated initial best solution vector.

Abstract: Systems and methods are disclosed herein that relate to Peak-to-Average Power Ratio (PAPR) reduction in a MIMO OFDM transmitter system. In some embodiments, a method of operation of a transmitter system includes, for each carrier of two or more carriers, performing precoding of frequency-domain input signals for the carrier to provide frequency-domain precoded signals for the carrier, the frequency-domain input signals for the carrier being for a plurality of transmit layers for the carrier, respectively. The method further includes processing the two or more pluralities of frequency-domain precoded signals for the two or more carriers, respectively, in accordance with a multi-carrier processing scheme to provide a plurality of multi-carrier time-domain transmit signals for a plurality of antenna branches, respectively, of the MIMO OFDM transmitter system.

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for setting a resolution for an analog-to-digital converter (ADC) of a user equipment (UE) based on a modulated reference signal received from a base station (BS) during a first (for example, initial) symbol period of a slot. In one aspect, the first symbol period of the slot and a cyclic prefix (CP) of the first symbol period may be relatively longer in time than other symbol periods and other CPs of the slot and, in some implementations, the BS may transmit a configuration to the UE allocating a portion of the first symbol period for the transmission of the modulated reference signal. The UE may demodulate the modulated reference signal, calibrate an automatic gain control (AGC) of the UE, and set the resolution of the ADC of the UE based on the modulated reference signal.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive a control message indicating a set of sampling beams defined for the UE. The UE may measure a set of received signal strengths for communications from a wireless node associated with a set of linear combinations of sampling beams from the set of sampling beams defined at the UE. The UE may calculate a set of entries of a channel covariance matrix based on the set of received signal strengths of the set of linear combinations of the sampling beams from the set of sampling beams defined for the UE. As such, the UE may communicate with the wireless node based on applying a set of beam weights to an antenna array of the UE. In some examples, the set of beam weights may be based on the channel covariance matrix.

Abstract: A base station includes an array of transceiver chains, each characterized by a bandwidth and including a transmit chain and a receive chain. The base station determines, at each center frequency and sub-bandwidth covering the bandwidth: a first set of interchain transmit gain and phase/delay differences across transmit chains; and a first set of interchain receive gain and phase/delay differences across the receive chains. The base station then determines, in a same manner as the first determining: a second set of inter-chain transmit differences; and a second set of inter-chain receive differences. The base station adjusts each transmit chain by the difference between the second set of inter-chain transmit differences and the first set of inter-chain transmit differences. The base station adjust each receive chain by the difference between the second set of inter-chain receive differences and the first set of inter-chain receive differences.

Abstract: Methods, systems and devices for reciprocal geometric precoding are described. One example method includes determining, by a network device, an uplink channel state using reference signal transmissions received from multiple user devices, and generating a precoded transmission waveform for transmission to one or more of the multiple user devices by applying a precoding scheme that is based on the uplink channel state, wherein the uplink channel state completely defines the precoding scheme. In some embodiments, the reference signal transmissions and the precoded transmission waveform are multiplexed using either time-domain multiplexing or frequency-domain multiplexing.

Abstract: A method and apparatus of transmitting in a wireless communication system is provided. A transmitter generates a group management frame including a group information and position information and a data frame including a group control information having a group identifier for each of a plurality of groups. The group information indicates whether the receiver is a member of each of the plurality of groups. The position information indicates a position of at least one stream corresponding to at least one group of which the receiver is a member.

Abstract: This application provides a communication method based on orbital angular momentum (OAM) and a related apparatus. The method includes: determining OAM modes for at least two subframes of a radio frame, where at least one symbol is mapped to each subframe in the at least two subframes; and sending the at least two subframes, where there is an association relationship between the OAM modes corresponding to the subframes in the at least two subframes. Embodiments of this application are implemented to enhance an electromagnetic field, reduce signal fading, and improve a diversity effect.

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, the apparatus is configured to determine a target receiver power level for uplink transmissions received at the apparatus, to determine uplink power control information based on the determined target receiver power level for UL MU-MIMO transmission or UL OFDMA transmission, and to transmit a frame that includes the determined uplink power control information to a station scheduled by the apparatus for uplink transmission.

Abstract: An example test system includes memory (e.g., one or more memory devices) storing (i) instructions that are executable, and (ii) a mapping function that relates first error vector magnitudes (EVMs) for first symbols to second EVMs for the first symbols, where the first EVMs are corrupted by radio frequency (RF) noise and the second EVMs are corrupted by both RF noise and symbol decoding errors. The test system also includes a decoder to receive a signal from a device under test, and to obtain a third EVM for a second symbol that is based on the signal, where the third EVM is corrupted by both RF noise and a symbol decoding error. One or more processing devices are configured to execute the instructions to adjust the third EVM using the mapping function to correct the symbol decoding error in the third EVM.

Abstract: Disclosed are a method for transmitting and receiving channel state information in wireless communication system and an apparatus therefor. Specifically, a method for transmitting, by a user equipment (UE), Channel State Information (CSI) in a wireless communication system may include: receiving, from a base station, a channel state information reference signal (CSI-RS) through multiple antenna ports; and reporting, to the base station, CSI, in which the CSI may include selection information indicating a plurality of codewords used for generating a precoding matrix in a codebook for reporting the CSI, and a power coefficient, a phase offset, and a phase shift value applied to each of the plurality of codewords in terms of a configured bandwidth, and the precoding matrix may be generated in units of subbands within the configured bandwidth based on a linear combination of the power coefficient, the phase offset, and the phase change value.

Abstract: In some embodiments, a wireless device receives a power offset value associated with a difference between transmission powers of different redundancy versions (RVs) of repetition occasions of a transport block. A downlink control information is received that indicates: a sequence of RVs, and a quantity of the repetition occasions. Based on the power offset value and the RVs, a transmission power is determined for one or more repetition occasions of the repetition occasions. One or more repetitions of the transport block are transmitted with the determined transmission power via the one or more repetition occasions.

Abstract: A method of transmitting data to a communications device from a wireless communications network comprising one or more infrastructure equipment, the method comprises configuring one or more of the infrastructure equipment for transmitting one or more candidate beams of signals which can be used to transmit the data to the communications device from each of one or more cells of the wireless communications device formed by the infrastructure equipment. Each of the candidate beams is configured with a different directional bias with respect to a location of the one or more cells from which the signals of the candidate beam can be received when transmitted.

Abstract: A method is performed by an electronic device that includes antenna modules AM1 and AM2. The method includes: while transmitting or receiving through AM1, receiving a specified wireless signal through AM1 and AM2; identifying a first signal quality for the specified wireless signal of AM1 and a second signal quality for the specified wireless signal of AM2; and in response to determining that a difference between the first signal quality and the second signal quality is within a specified signal quality range and that a rank of a wireless channel through which the specified wireless signal is received is two or more, selecting an antenna module to transmit or receive a wireless signal, from among AM1 and AM2, based on first channel information about AM1 and second channel information about AM2. The method includes transmitting or receiving the wireless signal using the selected antenna module.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may communicate on a primary carrier using a first antenna port. The UE may communicate on a secondary carrier using a second antenna port. The UE may determine whether to switch the secondary carrier from the second antenna port to the first antenna port based on a channel condition associated with the second antenna port. The UE may switch the secondary carrier from the second antenna port to the first antenna port based on a determination to switch the secondary carrier from the second antenna port to the first antenna port. Numerous other aspects are provided.

Abstract: A transmitting station device at least comprises a training signal generation unit, and a receiving station device at least comprises a communication path estimation unit which estimates a communication path response from the known signal, and a beam forming unit which performs a beam forming process using a weight to suppress inter-stream interference, a channel fluctuation amount calculation unit which calculates as a channel fluctuation amount a difference between the communication path responses estimated in a manner of one following another in time, and a weight calculation unit which calculates a new weight using an updated value of the weight calculated based on the channel fluctuation amount are included in one of the transmitting station device and the receiving station device. This can significantly reduce the amount of calculation related to update of a weight.

Abstract: Embodiments of this application disclose a channel estimation method and apparatus, and relate to the field of communications technologies. One example method include: generating and sending indication information, where the indication information is used to indicate L space-frequency basis vectors for constructing an M×N-dimensional space-frequency vector; the space-frequency vector includes M N-dimensional precoding vectors, each precoding vector is used in one of M frequency bands, and the space-frequency vector is generated by performing a weighted combination on L space-frequency component vectors; each of the L space-frequency component vectors is a vector including M×N elements that are in one of the L space-frequency basis vectors, and each of the L space-frequency basis vectors is an Nf×N-dimensional vector; the space-frequency basis vector is a three-dimensional oversampled (DFT) vector; and L?2, Nf?M?1, N?2, and L, M, N, and Nf are all integers.

Abstract: An electronic device and methods for performing beam management in the electronic device are disclosed herein. An electronic device performing beam management comprises a plurality of antenna modules and a processor. The processor is configured to determine at least two objectives for beam management of the plurality of antenna modules, select at least one parameter for the beam management based on the determined at least two objectives, and perform the beam management on the plurality of antenna modules based on the selected at least one parameter.

Abstract: Aspects described herein relate to communicating a beam report that includes beam measurements performed by one or more antenna panels and an identifier of the one or more antenna panels. The beam report may be used to determine a number of antenna panels supported by a user equipment (UE) transmitting the beam report, which may be used in configuring the UE for communicating with one or more other devices.

Abstract: Certain aspects of the present disclosure provide techniques for transmitting simultaneous multi-beams on the same wireless resource. One example method includes determining a set of transmission (TX) beams for simultaneous transmissions to or from a user equipment (UE), signaling to the UE an indication of the TX beams, and transmitting simultaneously via the TX beams.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink signaling configured to support obtaining spatial basis functions associated with antenna ports of a network node. The UE may receive a downlink communication from the network node, the receiving the downlink communication including decoding the downlink communication using digital post-distortion (DPoD) correction that is based at least in part on the spatial basis functions. Numerous other aspects are described.

Abstract: A channel state information transmission method, where a responder receives a channel measurement signal sent by an initiator by using one or more transmit antennas, and the responder sends a feedback frame to the initiator based on the channel measurement signal. The feedback frame includes information used to indicate a transmit antenna subset of the initiator and one or more channel state information blocks of a channel between the corresponding transmit antenna subset of the initiator and the responder, where the transmit antenna subset is determined from one or more transmit antennas by using which a channel measurement signal is sent.

Abstract: An electronic device is provided. The electronic device includes a RFIC to convert data transmitted from the a communication processor into a RF signal and output the RF signal, and an antenna configured to receive the RF signal and radiate an electromagnetic field, the communication processor is configured to receive, from a BS, a reference signal for identifying a state of a downlink channel between the electronic device and the BS through the antenna and the RFIC, based on the reference signal and association information between the downlink channel and an uplink channel and between the electronic device and the BS, identify the uplink channel, based on the identified uplink channel, identify a precoder for the uplink channel, based on the identified precoder, precode uplink data and a DMRS, and transmit a signal based on the precoded data to the BS using at least some of the RFIC and the antenna.

Abstract: A method for mitigating inter-mode interference (IMI) caused by antenna misalignment in an orbital angular momentum (OAM) mode multiplexing (OAM-MM) system and detecting a signal in an OAM beam. The method includes receiving an OAM beam bearing a signal, determining a phase-shifting value based on at least one of a type of the antenna misalignment and one or more antenna-misalignment parameters, wherein the phase-shifting value belongs to a beamforming (BF) codebook, shifting the phase of the received OAM beam using the determined phase-shifting value, and detecting the signal from the phase-shifted OAM beam.

Abstract: A receiver system (100) comprising: a plurality of receiver-input-terminals (102), each of which is configured to receive an input-signal from a respective antenna (106), wherein the input-signals comprise: i. one or more undesired-signal-components; and ii. one or more combined-signal-components. The receiver system (100) also includes a spatial-information-processing-block (112; 212) configured to: calculate spatial information (222) of the undesired-signal-components of the plurality of input-signals; calculate spatial information (220) of the combined-signal-components of the plurality of input-signals; calculate weighting-coefficients (226) for each of the input-signals based on the spatial information (220) of the combined-signal-components and the spatial information (222) of the undesired-signal-components; and combine the plurality of input-signals by applying the weighting-coefficients to each of the input-signals to provide a spatial-output-signal (114; 214).

Abstract: A method of a user equipment (UE) for a channel state information (CSI) feedback in a wireless communication system is provided. The method comprises receiving, from a base station (BS), CSI feedback configuration information including a number (K0) of coefficients for the CSI feedback, deriving, based on the CSI feedback configuration information, the CSI feedback including K1 coefficients that are a subset of a total of Q coefficients, wherein K1?K0 and K0<Q, and transmitting, to the BS, the CSI feedback including the K1 coefficients over an uplink channel.

Abstract: A wireless communication system includes a first transmitter and a second transmitter. For a transmission or reception of data of a first user equipment and data of a second user equipment on resources shared by the first user equipment and the second user equipment, the first transmitter is configured for a superimposed non-orthogonal multiple access, NOMA, transmission or reception of a first data signal of the first user equipment and a second data signal of the second user equipment, and the second transmitter is configured for a superimposed non-orthogonal multiple access, NOMA, transmission or reception of a third data signal of the first user equipment and a fourth data signal of the second user equipment.

Abstract: A method and apparatus for allocating and processing sequences in a communication system is disclosed. The method includes: dividing sequences in a sequence group into multiple sub-groups, each sub-group corresponding to its own mode of occupying time frequency resources; selecting sequences from a candidate sequence collection corresponding to each sub-group to form the sequences in the sub-group by: the sequences in a sub-group i in a sequence group k being composed of n sequences in the candidate sequence collection, the n sequences making a |ri/Ni?ck/Np1| or |(ri/Ni?ck/Np1) modu mk,i| function value the smallest, second smallest, till the nth smallest respectively; allocating the sequence group to cells, users or channels. It prevents the sequences highly correlated with the sequences of a specific length from appearing in other sequence groups, thus reducing interference, avoiding the trouble of storing the lists of massive sequence groups.

Abstract: An operating method of a base station in a wireless communication system includes receiving, from a terminal, information related to a first beam switching time for transmission of an uplink signal, determining a second beam switching time for transmission of the uplink signal, based on configuration information related to the uplink signal and the first beam switching time, transmitting the configuration information related to the uplink signal and the second beam switching time to the terminal, and receiving the uplink signal from the terminal, wherein the uplink signal includes at least one of a sounding reference signal (SRS), a physical uplink shared channel (PUSCH), or a physical uplink control channel (PUCCH).

Abstract: It is provided a method performed by a beamformer device for channel sounding in a network including a beamformer device and at least one beamformee device. In each round of channel sounding, the beamformer device may send an announcement message including identification information of beamformee devices included in a list when the list is not empty and clearing the list, wherein the beamformee devices included in the list have moved a distance exceeding a threshold value.

Abstract: A syndrome calculation circuit includes a matrix product calculation circuit. The matrix product calculation circuit is configured to generate syndrome bits in a composite field by calculating a matrix product of input data bits and a first arithmetic matrix. The first arithmetic matrix is a matrix product of a basis conversion matrix for converting a data string from a Galois field to the composite field and a second arithmetic matrix, which is at least a part of a parity check matrix.

Abstract: A method performed by a user equipment (UE) in a wireless communication system includes receiving, from a base station (BS), physical downlink shared channel (PDSCH) configuration information including a list of transmission configuration indicator (TCI) states, receiving, from the BS, a PDSCH media access control element (MAC CE) including information indicating activation of at least one TCI state in the list, identifying whether the PDSCH MAC CE is a MAC CE capable of indicating two or more TCI states for one TCI codepoint, receiving, from the BS, downlink control information (DCI) including information indicating a TCI codepoint, and receiving, from the BS, data via a PDSCH based on the information indicating activation of the at least one TCI state, a result of the identifying, and the information indicating the TCI codepoint.

Abstract: The present disclosure provides a random access method, a terminal, and a network device. The random access method of the present disclosure comprises: receiving configuration information concerning a currently activated downlink bandwidth part (BWP) or a serving cell; detecting a random access response (RAR) in a random access procedure according to the configuration of a control resource set (CORESET) in the configuration information of the currently activated downlink BWP or the configuration information of the serving cell.

Abstract: Briefly, in accordance with one or more embodiments, an apparatus of a user equipment (UE) comprises baseband circuitry including one or more processors to decode a secondary synchronization signal (SSS) or a beam reference signal (BRS) received from an evolved Node B (eNB) to select a Tier-1 sector for receiving downlink transmissions from the eNB, decode a downlink control channel message received from the eNB at one or more fixed time offsets after the UE decodes the SSS to obtain index information for the Tier-1 sector to identify the Tier-1 sector, and if the Tier-1 sector has changed initiate a random access procedure to select an updated Tier-1 sector, and generate an updated Tier-1 sector index message to report to the eNB.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive an encoded communication, the encoded communication being encoded with a hierarchical coding scheme comprising: first layer code blocks including pairs of information bits and sets of first parity bits, and second layer code blocks including sets of second parity bits, with each set of the second parity bits associated with a subset of the first layer code blocks. The wireless communication device may decode the encoded communication based at least in part on one or more of the sets of the second parity bits that are associated with one or more of the first layer code blocks determined to have failed decoding based at least in part on one or more associated sets of the first parity bits. Numerous other aspects are described.

Abstract: An Orthogonal Frequency Division Multiplexing (OFDM) transmitter generates OFDM multiple-access signals with low Peak-to-Average-Power Ratio (PAPR). A code-division multiplexer arranges original data symbols from different data streams inside each length-N symbol block, which is spread by a Discrete Fourier Transform (DFT) spreader. The arrangement of the original data symbols configures the DFT spreader to spread each original data symbol into a predetermined spread-DFT code division multiple access channel. The resulting DFT-spread data symbols are mapped to OFDM subcarriers, and an inverse discrete Fourier transform (IDFT) operates on the DFT-spread data symbols to generate an OFDM transmission signal having low PAPR.