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

IPC分类号： H04L27/34 ,  H04W72/04

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.

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.

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

IPC分类号： H04L1/16 ,  H04L27/00 ,  H04L5/00 ,  H04L1/00

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.

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.

公开(公告)号：US20240340075A1

公开(公告)日：2024-10-10

申请号：US18626560

申请日：2024-04-04

申请人： JIANGLEI MA ,  MING JIA ,  PEIYING ZHU ,  WEN TONG

发明人： JIANGLEI MA ,  MING JIA ,  PEIYING ZHU ,  WEN TONG

IPC分类号： H04B7/185

CPC分类号： H04B7/18513 ,  H04B7/18517 ,  H04B7/18526 ,  H04B7/18539 ,  H04B7/18558

摘要： The present disclosure relates, in part, to non-terrestrial communication systems, and in some embodiments to the integration of terrestrial and non-terrestrial communication systems. Non-terrestrial communication systems can provide a more flexible communication system with extended wireless coverage range and enhanced service quality compared to conventional communication systems.

公开(公告)号：US20090225891A1

公开(公告)日：2009-09-10

申请号：US12468624

申请日：2009-05-19

申请人： JIANGLEI MA ,  MING JIA ,  PEIYING ZHU ,  WEN TONG

发明人： JIANGLEI MA ,  MING JIA ,  PEIYING ZHU ,  WEN TONG

IPC分类号： H04J11/00 ,  H04B7/02

CPC分类号： H04L27/2613 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0684 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0234 ,  H04L25/0244 ,  H04L27/2602 ,  H04L27/2627 ,  H04W52/42

摘要： A method and apparatus are provided for reducing the number of pilot symbols within a MIMO-OFDM communication system, and for improving channel estimation within such a system. For each transmitting antenna in an OFDM transmitter, pilot symbols are encoded so as to be unique to the transmitting antenna. The encoded pilot symbols are then inserted into an OFDM frame to form a diamond lattice, the diamond lattices for the different transmitting antennae using the same frequencies but being offset from each other by a single symbol in the time domain. At the OFDM receiver, a channel response is estimated for a symbol central to each diamond of the diamond lattice using a two-dimensional interpolation. The estimated channel responses are smoothed in the frequency domain. The channel responses of remaining symbols are then estimated by interpolation in the frequency domain.

摘要翻译： 提供了一种用于减少MIMO-OFDM通信系统内的导频符号的数量并改善这种系统内的信道估计的方法和装置。 对于OFDM发射机中的每个发射天线，导频符号被编码为对于发射天线是唯一的。 然后将编码的导频符号插入到OFDM帧中以形成菱形晶格，使用相同频率的不同发射天线的菱形晶格，但是在时域中通过单个符号彼此偏移。 在OFDM接收机处，使用二维插值来估计针对钻石晶格的每个菱形的中心的符号的信道响应。 估计的信道响应在频域中被平滑化。 然后通过在频域中的内插来估计剩余符号的信道响应。

公开(公告)号：US20130028122A1

公开(公告)日：2013-01-31

申请号：US13618926

申请日：2012-09-14

申请人： JIANGLEI MA ,  HANG ZHANG ,  PEIYING ZHU ,  MO-HAN FONG ,  WEN TONG ,  MING JIA

发明人： JIANGLEI MA ,  HANG ZHANG ,  PEIYING ZHU ,  MO-HAN FONG ,  WEN TONG ,  MING JIA

IPC分类号： H04W72/04 ,  H04J1/00 ,  H04J3/00 ,  H04W24/00 ,  H04B7/14

CPC分类号： H04W72/06 ,  H04B7/2606 ,  H04B7/2615 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2655 ,  H04W16/26 ,  H04W52/34 ,  H04W84/047

摘要： Methods and systems are provided for use with wireless networks having one or more cell in which each cell includes a base station (BS), at least one relay station (RS) and at least one mobile station (MS). The at least one relay station can be used as an intermediate station for providing communication between the BS and MS. Methods are provided for an RS to initially access the network, access of the RS by MSs initially accessing the network, methods of allocating OFDM resources for communicating between the BS, RS and/or MS for example dividing transmission resources into uplink and downlink transmissions, and methods of inserting pilot symbols into transmission resources used by the RS. In some embodiments on the invention, the methods are consistent and/or can be used in conjunction with existing standards such as 802.16e.

摘要翻译： 方法和系统被提供用于具有一个或多个小区的无线网络，其中每个小区包括基站（BS），至少一个中继站（RS）和至少一个移动台（MS）。 所述至少一个中继站可以用作在BS和MS之间提供通信的中间站。 提供了用于RS初始接入网络的方法，初始访问网络的MS接入RS的方法，用于分配用于BS，RS和/或MS之间通信的OFDM资源的方法，例如将传输资源划分为上行链路和下行链路传输， 以及将导频符号插入到由RS使用的传输资源中的方法。 在本发明的一些实施例中，所述方法是一致的和/或可以与诸如802.16e的现有标准结合使用。

公开(公告)号：US20120051457A1

公开(公告)日：2012-03-01

申请号：US13292643

申请日：2011-11-09

申请人： JIANGLEI MA ,  MING JIA ,  WEN TONG ,  PEIYING ZHU ,  HANG ZHANG ,  MO-HAN FONG

发明人： JIANGLEI MA ,  MING JIA ,  WEN TONG ,  PEIYING ZHU ,  HANG ZHANG ,  MO-HAN FONG

IPC分类号： H04L27/00 ,  H04J4/00

CPC分类号： H04L5/0051 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L25/02 ,  H04L27/2602 ,  H04L27/2613 ,  H04L27/2647 ,  H04W52/325

摘要： Aspects of the invention include methods and devices for inserting data and pilot symbols into Orthogonal Frequency Division Multiplexing (OFDM) frames having a time domain and a frequency domain. A method involves inserting in at least one zone of a first type a two dimensional array of data and pilot symbols in time and frequency and inserting in at least one zone of a second type a two dimensional array of data and pilot symbols in time and frequency. In some implementations the zone of the first type comprises common pilot symbols that can be detected by all receivers receiving the OFDM frame. In some implementations the zone of the second type comprises dedicated pilot symbols that are only detectable by a receiver that is aware of pre-processing used to encode the dedicated pilot symbols.

摘要翻译： 本发明的方面包括用于将数据和导频符号插入具有时域和频域的正交频分复用（OFDM）帧的方法和装置。 一种方法包括在时间和频率上插入数据和导频符号的二维阵列的第一类型的至少一个区域，并在第二类型的至少一个区域中插入时间和频率的数据和导频符号的二维阵列 。 在一些实现中，第一类型的区域包括可由接收OFDM帧的所有接收机检测的公共导频符号。 在一些实施方式中，第二类型的区域包括专用导频符号，其仅可以被知道用于对专用导频符号进行编码的预处理的接收机检测。

公开(公告)号：US20120039419A1

公开(公告)日：2012-02-16

申请号：US12806209

申请日：2009-09-24

申请人： MOHAMMAD ALI MADDAH-ALI ,  SEYED ABOLFAZL MOTAHARI ,  AMIR KHANDANI ,  MOHAMMADHADI BALIGH ,  MING JIA ,  JIANGLEI MA ,  PEIYING ZHU ,  WEN TONG

发明人： MOHAMMAD ALI MADDAH-ALI ,  SEYED ABOLFAZL MOTAHARI ,  AMIR KHANDANI ,  MOHAMMADHADI BALIGH ,  MING JIA ,  JIANGLEI MA ,  PEIYING ZHU ,  WEN TONG

IPC分类号： H04L27/06

CPC分类号： H04L25/03343 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/0232

摘要： A method and apparatus for transmitting and receiving a wireless transmission of a plurality of data streams in a wireless communication system having a plurality of nodes is disclosed. Each node has multiple antennas. The method involves receiving first and second data streams from respective first and second nodes at a receiver node, causing the receiver node to generate a receive filter for decoding each of the received data streams, and causing the receiver node to transmit receive filter information for each of the first and second data streams, the receive filter information facilitating precoding of the first and second data streams for simultaneous transmission within a common frequency band to the receiver node.

摘要翻译： 公开了一种用于在具有多个节点的无线通信系统中发送和接收多个数据流的无线传输的方法和装置。 每个节点有多个天线。 该方法包括从接收机节点处的相应第一和第二节点接收第一和第二数据流，使得接收机节点产生用于解码每个接收到的数据流的接收滤波器，并且使得接收机节点为每个接收节点发送接收滤波器信息 所述第一和第二数据流的接收滤波器信息有助于预编码第一和第二数据流，以在共同频带内同时传输到接收机节点。

公开(公告)号：US20110216808A1

公开(公告)日：2011-09-08

申请号：US13108443

申请日：2011-05-16

申请人： WEN TONG ,  PEIYING ZHU ,  JIANGLEI MA ,  MING JIA

发明人： WEN TONG ,  PEIYING ZHU ,  JIANGLEI MA ,  MING JIA

IPC分类号： H04L27/28 ,  H04B1/713

CPC分类号： H04L27/2613 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0684 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0234 ,  H04L25/0244 ,  H04L27/2602 ,  H04L27/2627 ,  H04W52/42

摘要： Methods and apparatus are provided for inserting data symbols and pilot symbols in an OFDM (orthogonal frequency division multiplexing) transmission resource utilizing frequency hopping patterns for the data symbols and/or the pilot symbols. Data symbols and pilot symbols are allocated for down link (base station to mobile station) and up link (mobile station to bases station) transmission resources in a two-dimensional time-frequency pattern. For each antenna of a MIMO-OFDM (multiple input multiple output OFDM) communication system, pilot symbols are inserted in a scattered pattern in time-frequency and data symbols are inserted in an identical frequency-hopping pattern in time-frequency as that of other antennas.

摘要翻译： 提供了使用用于数据符号和/或导频符号的跳频图案在OFDM（正交频分复用）传输资源中插入数据符号和导频符号的方法和装置。 数据符号和导频符号分配给二维时频模式的下行链路（基站到移动台）和上行链路（移动台到基站）的传输资源。 对于MIMO-OFDM（多输入多输出OFDM）通信系统的每个天线，导频符号以时间 - 频率的散射图案插入，并且数据符号以与其它信号的时间频率相同的跳频图案插入 天线。