公开(公告)号：US08498350B2

公开(公告)日：2013-07-30

申请号：US12762619

申请日：2010-04-19

Applicant: Martin A. Stern ,  Thomas E. Young ,  Mark A. Gloudemans ,  David E. Mussmann

Inventor： Martin A. Stern ,  Thomas E. Young ,  Mark A. Gloudemans ,  David E. Mussmann

IPC: H04K1/10 ,  H04L27/28

CPC classification number: H04L27/2662 ,  H04L1/0071 ,  H04L1/0643 ,  H04L1/0668 ,  H04L5/0023 ,  H04L27/2613 ,  H04L27/2655

Abstract: A wireless radio transceiver system configured to transmit and receive a communications signal waveform having a time division multiple access physical layer structure and which includes a sequence of orthogonal frequency division multiple access symbols. The transceiver provides transmit diversity through space-time coding and the use of orthogonal channel probes from each transmitter. The waveform is packet based and contains a packet header definition that supports local receiver synchronization. Examples of the waveform also incorporate transmission security features.

Abstract translation: 一种无线收发器系统，被配置为发送和接收具有时分多址物理层结构并且包括正交频分多址符号序列的通信信号波形。 收发器通过空时编码和使用每个发射机的正交信道探测器提供发射分集。 波形是基于分组的，并且包含支持本地接收机同步的分组报头定义。 波形的示例还包括传输安全特性。

公开(公告)号：US20130136075A1

公开(公告)日：2013-05-30

申请号：US13652412

申请日：2012-10-15

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hee-Jung YU ,  Min-Ho CHEONG ,  Sok-Kyu LEE

IPC: H04W72/04

CPC classification number: H04W72/0453 ,  H04L1/0026 ,  H04L1/0061 ,  H04L1/0643

Abstract: A data transmission apparatus in a communication system includes a verification unit configured to verify a basic frequency band capable of being used for transmitting and receiving data to and from a plurality of terminals, and a multi-bandwidth mode in the basic frequency band; a generation unit configured to generate data packets in the multi-bandwidth mode; and a transmission unit configured to transmit the data packets in the multi-bandwidth mode, wherein the multi-bandwidth mode includes a ½× bandwidth of the basic frequency band, a basic bandwidth, a 2× bandwidth of the basic frequency band, a 4× bandwidth of the basic frequency band and an 8× bandwidth of the basic frequency band.

Abstract translation: 一种通信系统中的数据发送装置，具备：验证部，其对能够用于从多个终端发送数据的基本频带和基本频带的多带宽模式进行验证; 生成单元，被配置为以多带宽模式生成数据分组; 以及发送单元，被配置为以多带宽模式发送数据分组，其中所述多带宽模式包括所述基本频带的1/2×带宽，基本带宽，所述基本频带的2×带宽，4 ×基本频带的带宽和基本频带的8×带宽。

公开(公告)号：US08416874B2

公开(公告)日：2013-04-09

申请号：US12559084

申请日：2009-09-14

Applicant: Yue Wang ,  Justin Coon

Inventor： Yue Wang ,  Justin Coon

IPC: H04B7/02 ,  H04K1/02

CPC classification number: H04L27/2607 ,  H04B7/043 ,  H04B7/0669 ,  H04L1/0006 ,  H04L1/0643 ,  H04L1/0668 ,  H04L25/03159

Abstract: A block of information is processed before transmission thereof in a block transmission based communication. This comprises inserting a cyclic prefix and a cyclic suffix into the block of information before applying a time reversal based prefilter prior to transmission to the data after cyclic prefix and cyclic suffix insertion, the prefilter being configured on the basis of knowledge of the condition of the channel over which communication is to be effected. Then, at the receiver, a removal operation is operable to remove the effect of cyclic prefix and suffix insertion, leaving a circulant shifted version of the original block. This can be decoded using a diagonal matrix containing frequency domain channel coefficients on its diagonal entries after FFT. For systems with more than two transmit antennas, this facilities the use of full rate OSTBC, regardless of whether real or complex signaling is transmitted.

Abstract translation: 在基于块传输的通信中，在其发送之前处理信息块。 这包括在循环前缀和循环后缀插入之前传送到数据之前，在应用基于时间反向的前置滤波器之前将循环前缀和循环后缀插入到信息块中，该预滤波器是基于对 要进行通信的通道。 然后，在接收机处，去除操作可以消除循环前缀和后缀插入的影响，留下原始块的循环移位版本。 这可以使用在FFT之后的对角条目上包含频域信道系数的对角矩阵进行解码。 对于具有两个以上发射天线的系统，无论实际或复合信号是否传输，都可以使用全速率OSTBC。

公开(公告)号：US20130039447A1

公开(公告)日：2013-02-14

申请号：US13605099

申请日：2012-09-06

Applicant: Jungwon Lee ,  Yakun Sun ,  Hui-Ling Lou

Inventor： Jungwon Lee ,  Yakun Sun ,  Hui-Ling Lou

IPC: H04L27/06

CPC classification number: H04B7/024 ,  H04B7/0413 ,  H04L1/0042 ,  H04L1/0068 ,  H04L1/0643 ,  H04L1/1819

Abstract: Techniques are provided for transmitting and receiving a mother code in an incremental redundancy hybrid automatic repeat-request protocol. Each bit position of the mother code may be mapped to an output symbol, and each output symbol may be mapped to an antenna for transmission. One or more transmissions of symbols contained in the output symbols may be performed, where each transmission may include puncturing the mother code by selecting one or more symbols from the of output symbols, and transmitting each symbol in the one or more symbols on an antenna corresponding to that symbol. The mother code may be decoded, in part, by determining combinable bits contained within a set of received symbols, and computing one or more log-likelihood ratio values corresponding to each symbol in the set of received symbols.

Abstract translation: 提供了用于以增量冗余混合自动重复请求协议发送和接收母码的技术。 母码的每个比特位置可以被映射到输出符号，并且每个输出符号可以被映射到天线以进行传输。 可以执行输出符号中包含的符号的一个或多个传输，其中每个传输可以包括通过从输出符号中选择一个或多个符号来对母码进行穿刺，并且在天线上的一个或多个符号中发送每个符号 到那个符号。 可以部分地通过确定包含在一组接收到的符号内的可组合比特，以及计算与所接收的符号集合中的每个符号相对应的一个或多个对数似然比值来对母码进行解码。

公开(公告)号：US20120287775A1

公开(公告)日：2012-11-15

申请号：US13554748

申请日：2012-07-20

Applicant: Choo Eng YAP ,  Lee Ying Loh

Inventor： Choo Eng YAP ,  Lee Ying Loh

IPC: H04L29/14

CPC classification number: H04L1/1819 ,  H03M13/09 ,  H03M13/23 ,  H03M13/2957 ,  H03M13/6306 ,  H04B7/0413 ,  H04L1/0001 ,  H04L1/0625 ,  H04L1/0643 ,  H04L1/0656 ,  H04L1/08 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1887

Abstract: An automatic retransmission request control system in an OFDM-MIMO communication system includes a retransmission mode selection part which selects a retransmission mode from among (a) a mode in which to transmit the data which are to be retransmitted, via the same antenna as in the previous transmission, while transmitting, at the same time, new data by use of an antenna via which no data retransmission is requested; (b) a mode in which to transmit the data, which are to be retransmitted, via an antenna via which no retransmission is requested, while transmitting new data via another antenna at the same time; (c) a mode in which to use STBC to retransmit the data via an antenna via which no retransmission is requested; and (d) a mode in which to use STBC to retransmit the data via all the available antennas.

Abstract translation: OFDM-MIMO通信系统中的自动重发请求控制系统包括：重发模式选择部，其从（a）通过与所述重发模式相同的天线发送要重发的数据的模式中选择重发模式 同时通过使用不需要数据重传的天线同时发送新的数据; （b）在经由另一天线同时发送新数据的同时，经由不经过重发的天线发送要重传的数据的模式; （c）使用STBC通过经由其不请求重传的天线来重传数据的模式; 和（d）使用STBC通过所有可用天线重发数据的模式。

公开(公告)号：US08301078B2

公开(公告)日：2012-10-30

申请号：US12172087

申请日：2008-07-11

Applicant: Sang G. Kim ,  Ki-Dong Lee ,  Byung K. Yi

Inventor： Sang G. Kim ,  Ki-Dong Lee ,  Byung K. Yi

IPC: H04B7/15

CPC classification number: H04B7/15592 ,  H04L1/0006 ,  H04L1/0643 ,  H04L1/0668 ,  H04L2001/0097

Abstract: A method for communicating data from a source to a destination using a plurality of relay stations in a wireless communication system is provided. The method comprises grouping the plurality of relay stations into at least one relay station group; receiving in a relay station group a subset of data transmitted from the source; sharing information between relay stations in the relay station group for forwarding to the destination the received subset of data transmitted from the source; determining a forwarding scheme for transmitting the received subset of data; and transmitting the received subset of data to the destination using the forwarding scheme.

Abstract translation: 提供了一种在无线通信系统中使用多个中继站从源向目的地传送数据的方法。 该方法包括将多个中继站分组成至少一个中继站组; 在中继站组中接收从源发送的数据的子集; 在所述中继站组中的中继站之间共享信息，以将从所述源发送的所接收的数据子集转发到所述目的地; 确定用于发送所接收的数据子集的转发方案; 以及使用转发方案将所接收的数据子集发送到目的地。

公开(公告)号：US20120219089A1

公开(公告)日：2012-08-30

申请号：US13406895

申请日：2012-02-28

Applicant: Yutaka MURAKAMI ,  Tomohiro KIMURA ,  Mikihiro OUCHI

Inventor： Yutaka MURAKAMI ,  Tomohiro KIMURA ,  Mikihiro OUCHI

IPC: H04L25/49

CPC classification number: H04B7/0456 ,  H04L1/005 ,  H04L1/0643 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0222 ,  H04L25/0242 ,  H04L25/03942 ,  H04L25/067 ,  H04L27/2604

Abstract: All data symbols used in data transmission of a modulated signal are precoded by switching between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol along the frequency axis and the time axis all differ. A modulated signal with such data symbols arranged therein is transmitted.

Abstract translation: 在调制信号的数据传输中使用的所有数据符号通过在预编码矩阵之间切换进行预编码，使得用于对每个数据符号进行预编码的预编码矩阵和用于预编码沿频率轴与数据符号相邻的数据符号的预编码矩阵，以及 时间轴全部不同。 发送其中布置有这样的数据符号的调制信号。

公开(公告)号：US08233558B2

公开(公告)日：2012-07-31

申请号：US12301248

申请日：2007-05-31

Applicant: Birsen Sirkeci ,  Anna Scaglione

Inventor： Birsen Sirkeci ,  Anna Scaglione

IPC: H04B7/02

CPC classification number: H04L1/0643 ,  H04L1/0625 ,  H04L2001/0097

Abstract: Methods and systems for space-time coding for distributed cooperative communication.

Abstract translation: 用于分布式协作通信的时空编码方法和系统。

公开(公告)号：US08218670B2

公开(公告)日：2012-07-10

申请号：US12863990

申请日：2009-01-29

Applicant: Chadi Abou Rjeily

Inventor： Chadi Abou Rjeily

IPC: H04B7/02 ,  H04L1/02

CPC classification number: H04L1/0643 ,  H04B1/7176

Abstract: A method of space time coding for UWB transmission system including a plurality of radiative elements, the method coding a block of information symbols S=(σ1, σ2, . . . , σP) belonging to a M-PPM-M′-PAM modulation alphabet, as a sequence of vectors obtained from elements of the matrix: C = ( σ 1 σ 2 … σ P Ωσ P σ 1 ⋱ ⋮ ⋮ ⋱ ⋱ σ 2 Ωσ 2 … Ωσ P σ 1 ) a row of the matrix corresponding to a use of the transmission channel and a column of the matrix corresponding to a radiative element, the matrix C being defined to within a permutation of its rows and/or its columns and Ω being defined as the combination of a permutation (ω) of the modulation positions of the M-PPM alphabet and a symmetry operation (π) of the M′-PAM modulation alphabet for one of the modulation positions (m±).

Abstract translation: 一种包括多个辐射元件的UWB传输系统的空间时间编码方法，该方法编码属于M-PPM的信息符号块S =（＆sgr; 1，＆sgr; 2，...，＆sgr; P） -M'-PAM调制字母表，作为从矩阵元素获得的向量序列：C =（＆sgr; 1＆sgr; 2 ...＆sgr; P＆OHgr;＆sgr; P＆sgr; 1⋱⋮⋮⋱⋱⋱⋱⋱⋱⋱ ;＆sgr; 2 ...＆OHgr;＆sgr; P＆sgr; 1）对应于使用传输信道的矩阵行和与辐射元素相对应的矩阵列，矩阵C被定义为在其排列之内 行和/或其列和＆OHgr; 被定义为M-PPM字母表的调制位置的置换（ω）和M'-PAM调制字母表对于调制位置之一（m±）的对称性操作（＆pgr）的组合。

公开(公告)号：US08116411B2

公开(公告)日：2012-02-14

申请号：US11842963

申请日：2007-08-22

Applicant: Ananthanarayanan Chockalingam ,  Balaji Sundar Rajan ,  Kalepalli Vishnu Vardhan ,  Saif Khan Mohammed

Inventor： Ananthanarayanan Chockalingam ,  Balaji Sundar Rajan ,  Kalepalli Vishnu Vardhan ,  Saif Khan Mohammed

IPC: H04L27/06

CPC classification number: H04L1/0631 ,  H04L1/0643 ,  H04L1/0656 ,  H04L2025/03414 ,  H04L2025/03426

Abstract: A method to detect data transmitted from multiple antennas, said method comprising steps of: selecting a starting data block and calling it as previous data block; defining a set of indices of bits to be checked for possible flip in the previous data block as a check candidate set; applying update rule to obtain updated data block using the previous data block and the check candidate set, wherein the update is made in such a manner that change in likelihood is positive; checking if the updated data block and several consecutive previous data blocks are the same; if yes, declare the updated data block as the detected data block; if no, make updated data block as previous data block and repeat updation of data block.

Abstract translation: 一种检测从多个天线发送的数据的方法，所述方法包括以下步骤：选择起始数据块并将其称为先前的数据块; 定义一组待检查的位的索引索引，作为检查候选集合在先前数据块中的可能翻转; 应用更新规则以使用所述先前数据块和所述检查候选集获得更新的数据块，其中所述更新以可能性变化为正的方式进行; 检查更新的数据块和几个连续的先前数据块是否相同; 如果是，则将更新的数据块声明为检测到的数据块; 如果没有，则将更新的数据块作为先前的数据块并重新更新数据块。