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    METHODS FOR CONFIGURABLE NON-ORTHOGONAL MULTIPLE ACCESS TRANSMISSION
    3.
    发明申请
    METHODS FOR CONFIGURABLE NON-ORTHOGONAL MULTIPLE ACCESS TRANSMISSION 审中-公开

    公开(公告)号：US20190190753A1

    公开(公告)日：2019-06-20

    申请号：US15844015

    申请日：2017-12-15

    申请人： ALIREZA BAYESTEH ,  MING JIA ,  SANJEEWA HERATH ,  JIANGLEI MA

    发明人： ALIREZA BAYESTEH ,  MING JIA ,  SANJEEWA HERATH ,  JIANGLEI MA

    IPC分类号： H04L27/26 ,  H04L27/36 ,  H04B1/69

    摘要： Aspects of the present disclosure provide a scheme for generating a multiple access (MA) signal that include mapping each of at least one stream of bits to generate a set of modulated symbols and transmitting the set of modulated symbols. The spreading signatures that are selected to map the at least one stream of bits are selected, at least in part, based on a set of compatibility rules. The spreading involves mapping each stream of bits using a respective spreading signature from a set of spreading signatures to generate a respective set of modulated symbols, wherein real spreading signature components of the spreading signatures are orthogonal to each other and imaginary spreading signature components of the spreading signatures are orthogonal to each other.

    METHOD AND SYSTEM FOR NON-ORTHOGONAL MULTIPLE ACCESS COMMUNICATION
    4.
    发明申请
    METHOD AND SYSTEM FOR NON-ORTHOGONAL MULTIPLE ACCESS COMMUNICATION 审中-公开

    公开(公告)号：US20190312694A1

    公开(公告)日：2019-10-10

    申请号：US16369023

    申请日：2019-03-29

    申请人： MING JIA ,  JIANGLEI MA ,  ALIREZA BAYESTEH ,  SANJEEWA HERATH

    发明人： MING JIA ,  JIANGLEI MA ,  ALIREZA BAYESTEH ,  SANJEEWA HERATH

    IPC分类号： H04L5/00 ,  H04L1/00 ,  H04L27/26

    摘要： A bit-level operation may be implemented prior to modulation and resource element (RE) mapping in order to generate a NoMA transmission using standard (QAM, QPSK, BPSK, etc.) modulators. In this way, the bit-level operation is exploited to achieve the benefits of NoMA (e.g., improved spectral efficiency, reduced overhead, etc.) at significantly less signal processing and hardware implementation complexity. The bit-level operation is specifically designed to produce an output bit-stream that is longer than the input bit-stream, and that includes output bit-values that are computed as a function of the input bit-values such that when the output bit-stream is subjected to modulation (e.g., m-ary QAM, QPSK, BPSK), the resulting symbols emulate a spreading operation that would otherwise have been generated from the input bit-stream, either by a NoMA-specific modulator or by a symbol-domain spreading operation.

    SYSTEMS AND METHODS FOR GRANT-FREE UPLINK TRANSMISSION
    6.
    发明申请
    SYSTEMS AND METHODS FOR GRANT-FREE UPLINK TRANSMISSION 审中-公开

    公开(公告)号：US20200059900A1

    公开(公告)日：2020-02-20

    申请号：US16555208

    申请日：2019-08-29

    申请人： ALIREZA BAYESTEH ,  JIANGLEI MA ,  MING JIA

    发明人： ALIREZA BAYESTEH ,  JIANGLEI MA ,  MING JIA

    IPC分类号： H04W72/04 ,  H04L1/18 ,  H04B7/04 ,  H04B7/12 ,  H04B7/06 ,  H04W74/08 ,  H04W72/12 ,  H04L1/08

    摘要： Communication resources for grant-free transmission are assigned to a User Equipment (UE) in a communication system. A diversity channel for uplink grant-free data transmission includes uplink grant free transmission resources assigned to the UE. The uplink grant-free transmission resources include one or more positions corresponding to partitions of an access region and one or more positions corresponding to resource elements (REs) in each partition of the access region. At a UE, an uplink initial data transmission and a subsequent transmission are transmitted by the UE in the diversity channel without receiving grant information from a network equipment. At a network equipment, the uplink initial data transmission and the subsequent transmission are received in the diversity channel without transmitting grant information to the UE.

    SYSTEMS AND METHODS FOR GRANT-FREE UPLINK TRANSMISSION
    7.
    发明申请
    SYSTEMS AND METHODS FOR GRANT-FREE UPLINK TRANSMISSION 审中-公开

    公开(公告)号：US20180139727A1

    公开(公告)日：2018-05-17

    申请号：US15783515

    申请日：2017-10-13

    申请人： ALIREZA BAYESTEH ,  JIANGLEI MA ,  MING JIA

    发明人： ALIREZA BAYESTEH ,  JIANGLEI MA ,  MING JIA

    IPC分类号： H04W72/04 ,  H04L1/18 ,  H04B7/04

    CPC分类号： H04W72/04 ,  H04B7/04 ,  H04B7/0689 ,  H04B7/12 ,  H04L1/08 ,  H04L1/1861 ,  H04L1/1896 ,  H04W72/1284 ,  H04W74/08

    摘要： Communication resources for grant-free transmission are assigned to a User Equipment (UE) in a communication system. A diversity channel for uplink grant-free data transmission includes uplink grant free transmission resources assigned to the UE. The uplink grant-free transmission resources include one or more positions corresponding to partitions of an access region and one or more positions corresponding to resource elements (REs) in each partition of the access region. At a UE, an uplink initial data transmission and a subsequent transmission are transmitted by the UE in the diversity channel without receiving grant information from a network equipment. At a network equipment, the uplink initial data transmission and the subsequent transmission are received in the diversity channel without transmitting grant information to the UE.

    LOW PEAK TO AVERAGE POWER RATIO SINGLE TONE SPARSE TRANSMISSION
    9.
    发明申请
    LOW PEAK TO AVERAGE POWER RATIO SINGLE TONE SPARSE TRANSMISSION 有权

    公开(公告)号：US20210067392A1

    公开(公告)日：2021-03-04

    申请号：US16559865

    申请日：2019-09-04

    申请人： JAVAD ABDOLI ,  SANJEEWA HERATH ,  ALIREZA BAYESTEH

    发明人： JAVAD ABDOLI ,  SANJEEWA HERATH ,  ALIREZA BAYESTEH

    IPC分类号： H04L27/26

    摘要： Aspects of the present application use a linear transformation of a sparse mapped single carrier transmission at a transmitter, for which a comparable inverse transform of the linear transform applied at the transmitter can be applied at the receiver. The linear transform reduces the sparsity of sparse mapped symbols. The use of the linear transform to reduce the sparsity enables peak-to-average power ratio (PAPR) and/or cubic metric to be reduced as compared to if the linear transform is not used. The linear transforms may be implemented in a block-wise manner, element-wise manner or combination thereof.

    METHOD AND APPARATUS FOR NON-ORTHOGONAL MULTIPLE ACCESS COMMUNICATION
    10.
    发明申请
    METHOD AND APPARATUS FOR NON-ORTHOGONAL MULTIPLE ACCESS COMMUNICATION 审中-公开

    公开(公告)号：US20200186189A1

    公开(公告)日：2020-06-11

    申请号：US16699412

    申请日：2019-11-29

    申请人： SANJEEWA HERATH ,  ALIREZA BAYESTEH

    发明人： SANJEEWA HERATH ,  ALIREZA BAYESTEH

    IPC分类号： H04B1/7143 ,  H04L27/26 ,  H04L5/00 ,  H04L1/00 ,  H04L1/20

    摘要： According to aspects of the disclosure, there is provided a method for a UE to select or be assigned or configured with a spreading sequence that is based on one or more communication parameters such as receiver type, receiver capability, SE, TBS, MCS, traffic load, PAPR requirement, MCL, number of layers, overloading, reliability requirement, transmission power consumption, number of active UEs, and transmission latency constraint, etc. In some embodiments, the spreading sequence may be related to a performance metric associated with an above parameter (PAPR, BLER, etc.). In some embodiments, this is achieved by associating spreading sequences with parameters or performance metrics, or both. In some instances the spreading sequences may be arranged or ordered in a manner to reduce signaling overhead (e.g., signaling an index is more efficient than signaling a value of a metric, and ordering correlates the index to the value).