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1.发明申请公开(公告)号：US20190158338A1
公开(公告)日：2019-05-23
申请号：US15821809
申请日：2017-11-23
申请人： SANJEEWA HERATH , ALIREZA BAYESTEH , MING JIA , JIANGLEI MA , PEIYING ZHU , WEN TONG
发明人： SANJEEWA HERATH , ALIREZA BAYESTEH , MING JIA , JIANGLEI MA , PEIYING ZHU , WEN TONG
摘要： Methods and systems are disclosed for symbol sequence generation and transmission for non-orthogonal multiple access (NoMA) transmission. A NoMA signal may be generated based on: (1) a first symbol sequence, the first symbol sequence determined from a set of input bits and associated with a first MA signature within a first MA signature space; (2) a second symbol sequence determined based on the first symbol sequence, the second symbol sequence being associated with a second MA signature within a second MA signature space; and (3) a symbol-to-resource element mapping applied to the second symbol sequence to produce the NoMA signal.
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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
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.
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公开(公告)号：US20190140779A1
公开(公告)日：2019-05-09
申请号：US15869156
申请日：2018-01-12
申请人： MING JIA , JIANGLEI MA , SANJEEWA HERATH , ALIREZA BAYESTEH
发明人： MING JIA , JIANGLEI MA , SANJEEWA HERATH , ALIREZA BAYESTEH
摘要： Methods of transmitting and receiving a set of bits are provided. In the transmitting method, some of the bits are mapped to modulated symbol, and some of the bits map to a subset of transmission resources out of a first set of transmission resources. The modulated symbol is transmitted using the subset of transmission resources. At the receiver, a modulated symbol is received using a subset of transmission resources. Some bits are recovered by demodulating the demodulated symbol, and some of the bits are recovered based on the subset of transmission resources over which the modulated symbol was received.
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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
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.
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5.发明申请公开(公告)号：US20200092057A1
公开(公告)日：2020-03-19
申请号：US16565744
申请日：2019-09-10
申请人： SANJEEWA HERATH , ALIREZA BAYESTEH , YIQUN GE , JIANGLEI MA
发明人： SANJEEWA HERATH , ALIREZA BAYESTEH , YIQUN GE , JIANGLEI MA
摘要： A system and method of non-orthogonal multiple access (NoMA) transmission using a configurable NoMA scheme is provided. A bit level processor, a modulation block, a phase and amplitude adjuster, and a symbol to resource element mapper collectively produce a NoMA signal for output or transmission. A NoMA scheme implemented by the system and method is configurable through one or more NoMA configuration inputs that configure one or more of the bit level processor, the modulation block, the phase and amplitude adjustment block and the symbol to resource element mapper. A multiple access (MA) signature produced by the apparatus once configured for the particular NoMA scheme is selectable through one or more MA signature inputs.
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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
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.
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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
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.
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公开(公告)号：US20220158872A1
公开(公告)日：2022-05-19
申请号：US17586957
申请日：2022-01-28
申请人： SANJEEWA HERATH , JAVAD ABDOLI , JIANGLEI MA
发明人： SANJEEWA HERATH , JAVAD ABDOLI , JIANGLEI MA
摘要： Some embodiments of the present disclosure provide control signaling mechanisms to support data transmission by a user equipment (UE) that is in the RRC_INACTIVE state and, more generally, in any inactive state. Beyond simply supporting data transmission by a user equipment that is in the RRC_INACTIVE state, aspects of the present application provide mechanisms for configuring the UE for preamble transmission or sounding reference signal (SRS) transmission and for toggling between such transmissions. Aspects of the present application relate to mechanisms for enabling Timing Advance estimation, which mechanisms are not burdened with high overhead and which allow the UE to remain in the RRC_INACTIVE state.
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公开(公告)号：US20210194734A1
公开(公告)日：2021-06-24
申请号：US16723403
申请日：2019-12-20
申请人： SANJEEWA HERATH , JAVAD ABDOLI , JIANGLEI MA
发明人： SANJEEWA HERATH , JAVAD ABDOLI , JIANGLEI MA
摘要： Some embodiments of the present disclosure provide control signaling mechanisms to support data transmission by a user equipment (UE) that is in the RRC_INACTIVE state and, more generally, in any inactive state. Beyond simply supporting data transmission by a user equipment that is in the RRC_INACTIVE state, aspects of the present application provide mechanisms for configuring the UE for preamble transmission or sounding reference signal (SRS) transmission and for toggling between such transmissions. Aspects of the present application relate to mechanisms for enabling Timing Advance estimation, which mechanisms are not burdened with high overhead and which allow the UE to remain in the RRC_INACTIVE state.
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公开(公告)号：US20230112477A1
公开(公告)日：2023-04-13
申请号：US17966973
申请日：2022-10-17
摘要： Methods and apparatus are provided for integrated communication and sensing. For example, an electronic device may transmit a radio frequency (RF) pulse signal in the active phase of a periodic sensing cycle, and sense in the passive phase of the sensing cycle, a reflection of the RF pulse signal reflected from an object. The RF pulse signal is defined by a waveform for carrying communication data between electronic devices. The sensed RF pulse signal is at least a portion of the transmitted or reflected RF pulse signal, wherein the portion is equal to or greater than a threshold value for the object being within a sensing range of the first electronic device. The electronic device may also receive a communication signal from another electronic device during the passive phase.
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