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1.
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.
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:US20220141804A1
公开(公告)日:2022-05-05
申请号:US17089123
申请日:2020-11-04
申请人: ALIREZA BAYESTEH , NAVID TADAYON , JIANGLEI MA , WEN TONG
发明人: ALIREZA BAYESTEH , NAVID TADAYON , JIANGLEI MA , WEN TONG
摘要: Some embodiments of the present disclosure relate to the selection of a waveform for an integrated communications and sensing (ICS) signal, where the waveform is suitable for both communication applications and sensing applications. In view of the sensing applications, the waveform selection can be, at least in part, adapted based on capabilities of hardware of nodes involved in the sensing applications. In view of the communication applications, the waveform selection can be, at least in part, adapted based on the extent to which data is to be embedded.
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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:US20220155435A1
公开(公告)日:2022-05-19
申请号:US16952309
申请日:2020-11-19
申请人: ALIREZA BAYESTEH , NAVID TADAYON , JIANGLEI MA , WEN TONG
发明人: ALIREZA BAYESTEH , NAVID TADAYON , JIANGLEI MA , WEN TONG
IPC分类号: G01S13/88
摘要: Some aspects of the present disclosure provide a transmission point (e.g., a base station) with an ability to enlist a user equipment to help sense an environment. The transmission point may configure the user equipment to use specific sensing hardware and specific sensing signal parameters, including bandwidth and duration. Furthermore, the transmission point may configure the user equipment to use specific resources to report sensing results to the transmission point.
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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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10.
公开(公告)号:US20180279315A1
公开(公告)日:2018-09-27
申请号:US15910238
申请日:2018-03-02
CPC分类号: H04W72/08 , H04L1/00 , H04L1/0025 , H04L1/0072 , H04L1/08 , H04L1/1671 , H04L1/203 , H04W72/042
摘要: Methods and devices for enhancing the spectral efficiency and/or reliability of uplink transmission without grant are provided. Uplink transmissions without grant are transmitted by UEs or received by base stations in accordance with resource groups that map initial uplink transmissions without grant and non-zero numbers of re-transmissions without grant to sub-regions of a grant-free region of a time-frequency resource.
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