公开(公告)号：US09118365B2

公开(公告)日：2015-08-25

申请号：US14365038

申请日：2012-11-30

申请人： ORANGE

发明人： Dinh Thuy Phan Huy

IPC分类号： H04B7/10 ,  H04B7/04 ,  H04L5/00 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26

CPC分类号： H04B7/0456 ,  H04B7/0697 ,  H04L5/0023 ,  H04L25/03961 ,  H04L27/2628

摘要： Disclosed is a method for transmitting from a transmitter device having M transmit antennas to a receiver device having N+C receive antennas, where M, N, and C are integers greater than or equal to 1. In one embodiment, the method comprises a process of spatial frequency multiplexing a block of N data symbols D1, D2, . . . , DN resulting in a block of N payload spatial symbols Su,1, Su,2, . . . , Su,N, using an inverse discrete Fourier transform (IDFT), a process of adding C redundancy spatial symbols to the block of N payload spatial symbols, resulting in a block of N+C spatial symbols S1, S2, . . . , SN+C, and a process of precoding the block of N+C spatial symbols S1, S2, . . . , SN+C with the help of a focusing matrix of dimensions M×(N+C), delivering M precoded spatial symbols X1, X2, . . . , XM, each precoded spatial symbol being transmitted over a distinct transmit antenna.

摘要翻译： 公开了一种用于从具有M个发射天线的发射机设备向具有N + C个接收天线的接收机设备进行发射的方法，其中M，N和C是大于或等于1的整数。在一个实施例中，该方法包括一个过程 空间频率复用N个数据符号D1，D2，...的块。 。 。 ，DN导致N个有效载荷空间符号Su，1，Su，2，...的块。 。 。 ，使用逆离散傅立叶变换（IDFT），将N个有效载荷空间符号的块中添加C个冗余空间符号的处理，得到N + C个空间符号块S1，S2。 。 。 ，SN + C，以及对N + C空间符号S1，S2的块进行预编码的处理。 。 。 ，SN + C，借助于尺寸为M×（N + C）的聚焦矩阵，传递M个预编码的空间符号X1，X2。 。 。 ，XM，每个预编码空间符号通过不同的发射天线发射。

公开(公告)号：US20150124897A1

公开(公告)日：2015-05-07

申请号：US14365038

申请日：2012-11-30

申请人： ORANGE

发明人： Dinh Thuy Phan Huy

IPC分类号： H04B7/04 ,  H04B7/06

CPC分类号： H04B7/0456 ,  H04B7/0697 ,  H04L5/0023 ,  H04L25/03961 ,  H04L27/2628

摘要： Disclosed is a method for transmitting from a transmitter device having M transmit antennas to a receiver device having N+C receive antennas, where M, N, and C are integers greater than or equal to 1. In one embodiment, the method comprises a process of spatial frequency multiplexing a block of N data symbols D1, D2, . . . , DN resulting in a block of N payload spatial symbols Su,1, Su,2, . . . , Su,N, using an inverse discrete Fourier transform (IDFT), a process of adding C redundancy spatial symbols to the block of N payload spatial symbols, resulting in a block of N+C spatial symbols S1, S2, . . . , SN+C, and a process of precoding the block of N+C spatial symbols S1, S2, . . . , SN+C with the help of a focusing matrix of dimensions M×(N+C), delivering M precoded spatial symbols X1, X2, . . . , XM, each precoded spatial symbol being transmitted over a distinct transmit antenna.

摘要翻译： 公开了一种用于从具有M个发射天线的发射机设备向具有N + C个接收天线的接收机设备进行发射的方法，其中M，N和C是大于或等于1的整数。在一个实施例中，该方法包括一个过程 空间频率复用N个数据符号D1，D2，...的块。 。 。 ，DN导致N个有效载荷空间符号Su，1，Su，2，...的块。 。 。 ，使用逆离散傅立叶变换（IDFT），将N个有效载荷空间符号的块中添加C个冗余空间符号的处理，得到N + C个空间符号块S1，S2。 。 。 ，SN + C，以及对N + C空间符号S1，S2的块进行预编码的处理。 。 。 ，SN + C，借助于尺寸为M×（N + C）的聚焦矩阵，传递M个预编码的空间符号X1，X2。 。 。 ，XM，每个预编码空间符号通过不同的发射天线发射。

公开(公告)号：US20220286171A1

公开(公告)日：2022-09-08

申请号：US17632372

申请日：2020-07-29

申请人： ORANGE

发明人： Romain Fara ,  Dinh Thuy Phan Huy

IPC分类号： H04B7/06 ,  H04B7/08 ,  H04B5/00 ,  H04W52/38

摘要： A process for generating at least one backscattering zone, by at least one transmitter device and to at least one receiver device, of an ambient radio signal emitted by at least one source; and a process for generating at least one reception zone, by the receiver device, of the backscattered ambient signal. The process for includes: determining an emission constraint, when it is respected by the source, for generating at least one backscattering zone in which the received electromagnetic power is greater than a determined threshold, called “backscattering threshold”, and/or generating at least one reception zone in which the received electromagnetic power is less than a determined threshold, called “reception threshold”; and transmitting, by the source, with respect to the emission constraint.

公开(公告)号：US20210392018A1

公开(公告)日：2021-12-16

申请号：US17288226

申请日：2019-10-22

申请人： ORANGE

发明人： Dinh Thuy Phan Huy ,  Raphaël Visoz ,  Philippe Ratajczak

IPC分类号： H04L25/02 ,  H04L5/00

摘要： A method of transmitting, by a first device, pilot symbols to allow a second device to estimate a transmission channel between the first and second devices. The first device has a first antenna that is active in transmission and a second antenna that is passive in transmission. The method includes: transmitting, by the first active antenna, a signal conveying pilot symbols associated with the first active antenna, and during which the second passive antenna is set to a transparency impedance to obtain a level of signal backscattered by the second passive antenna less than a first threshold; and transmitting by the first active antenna a signal conveying pilot symbols associated with the second passive antenna, and during which the second passive antenna is set to a scattering impedance to obtain a level of signal backscattered by the second passive antenna greater than a second threshold greater than the first threshold.

公开(公告)号：US20150016314A1

公开(公告)日：2015-01-15

申请号：US14370428

申请日：2012-12-17

申请人： Orange

发明人： Dinh Thuy Phan Huy

IPC分类号： H04B7/06 ,  H04L5/14

CPC分类号： H04B7/061 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0851 ,  H04L5/1469

摘要： An iterative precoding method for a TDD data transmission system includes a transmitter provided with N transmit antenna(s) (N≧1), and a receiver provided with M receive antennas (M≧2). A series of precoders Ln (n≧0) is defined. Each iteration includes: the transmitter takes account of a predetermined value n=n0 if it is the first iteration, or else a value of n obtained during the preceding iteration; the transmitter sends a triplet of pilot signals precoded with the precoders Ln, Ln+1, and Ln+2 to the receiver; the receiver estimates the triplet (Tn, Tn+1, Tn+2) of total data rates that can be achieved corresponding respectively to (Ln, Ln+1, Ln+2), and deduces therefrom the value of a control command p; the receiver sends a signaling message specifying the value of the control command p; and on receiving the signaling message, the transmitter updates the value of n, by replacing it with the value (n+p).

摘要翻译： 用于TDD数据传输系统的迭代预编码方法包括具有N个发射天线（N≥1）的发射机和具有M个接收天线（M≥2）的接收机。 定义了一系列预编码器Ln（n≥0）。 每次迭代包括：发射机如果是第一次迭代，则考虑预定值n = n0，否则在前一次迭代期间获得的n值; 发射机将预编码器Ln，Ln + 1和Ln + 2预编码的导频信号的三元组发送到接收机; 接收机估计分别对应于（Ln，Ln + 1，Ln + 2）可以实现的总数据速率的三元组（Tn，Tn + 1，Tn + 2），并从其推导出控制命令p的值; 接收器发送指定控制命令p的值的信令消息; 并且在接收到信令消息时，发射器通过用值（n + p）替换n来更新n的值。

公开(公告)号：US20230115508A1

公开(公告)日：2023-04-13

申请号：US17914732

申请日：2021-03-22

申请人： Orange

发明人： Antoine Mouquet ,  Dinh Thuy Phan Huy

IPC分类号： H04B7/185

摘要： The development relates to the detection of drones. The use of a cellular communication network by drones may cause problems because of interference generated by a user device located on-board a drone flying higher than antennas of the base stations. It is important, for a telecommunications operator, to be able to control use of the cellular communication network by drones. Methods allowing drones to be detected exist. These methods, although they allow a location of a drone to be determined, do not provide a satisfactory detection accuracy. Likewise, they do not allow two drones in similar positions to be distinguished between. The method is based on the use of control signals the characteristics of which are known and on the use of known properties of the transmission channel set up between the base station and the user device, to determine an altitude value that is accurate and reliable.

公开(公告)号：US20230044921A1

公开(公告)日：2023-02-09

申请号：US17769542

申请日：2020-10-07

申请人： ORANGE

发明人： Dinh Thuy Phan Huy ,  Romain Fara

IPC分类号： H04B7/145 ,  H04L27/00

摘要： A method for selection by an ambient backscatter system including a source as well as transmitting and receiving devices, the source being associated with a precoder for focusing signals towards the devices. Furthermore, the method includes, for a plurality of values ϕ_1, . . . , ϕ_N: a phase-shift, by the source, of one of the components of the precoder according to the value ϕ_i, so as to obtain a precoder Q_i; an emission, by the source, using the precoder Q_i; an acquisition, by the receiving device, of power measurements during non-backscattering and backscattering states, a determination, by the receiving device, of a value D1_i representative of a power deviation between the measurements. The method also includes a selection, by the receiving device, of a maximum value among the values D1_1, . . . , D1_N.

公开(公告)号：US09614603B2

公开(公告)日：2017-04-04

申请号：US14370428

申请日：2012-12-17

申请人： Orange

发明人： Dinh Thuy Phan Huy

IPC分类号： H04B7/06 ,  H04B7/08 ,  H04L5/14

CPC分类号： H04B7/061 ,  H04B7/0619 ,  H04B7/0626 ,  H04B7/0639 ,  H04B7/0851 ,  H04L5/1469

摘要： An iterative precoding method for a TDD data transmission system includes a transmitter provided with N transmit antenna(s) (N≧1), and a receiver provided with M receive antennas (M≧2). A series of precoders Ln (n≧0) is defined. Each iteration includes: the transmitter takes account of a predetermined value n=n0 if it is the first iteration, or else a value of n obtained during the preceding iteration; the transmitter sends a triplet of pilot signals precoded with the precoders Ln, Ln+1, and Ln+2 to the receiver; the receiver estimates the triplet (Tn, Tn+1, Tn+2) of total data rates that can be achieved corresponding respectively to (Ln, Ln+1, Ln+2), and deduces therefrom the value of a control command p; the receiver sends a signaling message specifying the value of the control command p; and on receiving the signaling message, the transmitter updates the value of n, by replacing it with the value (n+p).

公开(公告)号：US09553651B2

公开(公告)日：2017-01-24

申请号：US14401782

申请日：2013-05-13

申请人： Orange

发明人： Dinh Thuy Phan Huy

IPC分类号： H04B7/06 ,  H04L27/26 ,  H04L27/34 ,  H04B7/04 ,  H04L25/03

CPC分类号： H04B7/0697 ,  H04B7/0456 ,  H04L25/03891 ,  H04L27/2698 ,  H04L27/3405

摘要： A method is provided for transmitting data between a transmitter having M>=1 transmit antenna(s), and one or more receivers having a total of N>=2 receive antennas. In the method, the data are transmitted using OFDM/OQAM modulation having L>=1 subcarriers. The transmitted data are pre-encoded using a pre-encoding matrix, the size of which is M s N and which is dependent on a zero-forcing matrix and on a spatial multiplexing matrix.

摘要翻译： 提供一种用于在具有M≥1个发射天线的发射机与具有总共N≥2个接收天线的一个或多个接收机之间传输数据的方法。 在该方法中，使用具有L≥1个子载波的OFDM / OQAM调制来发送数据。 所发送的数据使用预编码矩阵进行预编码，预编码矩阵的大小为M s N，并且取决于迫零矩阵和空间复用矩阵。

公开(公告)号：US09178739B2

公开(公告)日：2015-11-03

申请号：US14397399

申请日：2013-04-16

申请人： ORANGE

发明人： Dinh Thuy Phan Huy

IPC分类号： H04B7/06 ,  H04L27/26 ,  H04B7/08 ,  H04L1/04 ,  H04L1/06 ,  H04B7/04 ,  H04L27/36 ,  H04L5/00 ,  H04L25/02

CPC分类号： H04L27/2698 ,  H04B7/046 ,  H04B7/0669 ,  H04B7/068 ,  H04B7/0848 ,  H04L1/04 ,  H04L1/0625 ,  H04L5/0023 ,  H04L25/0204 ,  H04L27/2666 ,  H04L27/2691 ,  H04L27/2697 ,  H04L27/367

摘要： A method of transmitting data between a transmitter furnished with M>=1 transmission antenna(s) and a receiver furnished with N>=2 reception antennas, in which said data are coded using an OFDM/OQAM modulation having L>=1 subcarriers. The method combines a specific coding/decoding with a precoding by Time Reversal, which can be used in high speed radio communications.

摘要翻译： 一种在配备有M≥1个发射天线的发射机和具有N≥2个接收天线的接收机之间传输数据的方法，其中使用具有L≥1个子载波的OFDM / OQAM调制对所述数据进行编码。 该方法将特定的编码/解码与时间反转的预编码相结合，可用于高速无线电通信。