公开(公告)号：US20090213966A1

公开(公告)日：2009-08-27

申请号：US12038021

申请日：2008-02-27

申请人： Koon Hoo Teo ,  Ronghui Peng ,  Jinyun Zhang

发明人： Koon Hoo Teo ,  Ronghui Peng ,  Jinyun Zhang

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H04L25/03171 ,  H04L25/0246 ,  H04L2025/03375 ,  H04L2025/03426

摘要： A hybrid soft output MIMO detector uses a QR decomposition detector followed by a Markov chain Monte Carlo detector. The QRD-M generates initial candidate decision vectors, which are used as input for the Markov chain Monte Carlo detection to generate the soft output.

摘要翻译： 混合软输出MIMO检测器使用QR分解检测器，随后是马尔可夫链蒙特卡洛检测器。 QRD-M产生初始候选决策向量，其用作马尔可夫链蒙特卡洛检测的输入以产生软输出。

公开(公告)号：US20090189820A1

公开(公告)日：2009-07-30

申请号：US12019737

申请日：2008-01-25

申请人： Masashi Saito ,  Andreas F. Molisch ,  Jinyun Zhang

发明人： Masashi Saito ,  Andreas F. Molisch ,  Jinyun Zhang

IPC分类号： H01Q3/00

CPC分类号： H01Q3/04

摘要： A movable portion of an array of antenna elements receives RF signals. A movable ultra-wideband (UWB) transmitter is connected to each antenna element, via a RF to UWB converter. A fixed portion of the antenna array is separated from the movable portion by an air gap. The fixed portion includes one fixed UWB receiver for each movable UWB transmitter. An application system is connected to the fixed UWB receivers. The UWB signals from the movable transmitter are sent across the air gap to the fixed UWB receivers to be processed by the application system as the movable portion rotates.

摘要翻译： 天线元件阵列的可移动部分接收RF信号。 可移动超宽带（UWB）发射机通过RF至UWB转换器连接到每个天线元件。 天线阵列的固定部分通过气隙与可动部分分离。 固定部分包括用于每个可移动UWB发射机的一个固定UWB接收机。 应用系统连接到固定的UWB接收机。 来自可移动发射机的UWB信号通过气隙被发送到固定的UWB接收机，由可移动部分旋转时由应用系统处理。

公开(公告)号：US20090180459A1

公开(公告)日：2009-07-16

申请号：US12240164

申请日：2008-09-29

申请人： Philip V. Orlik ,  Andreas F. Molisch ,  Zhifeng Tao ,  Jinyun Zhang

发明人： Philip V. Orlik ,  Andreas F. Molisch ,  Zhifeng Tao ,  Jinyun Zhang

IPC分类号： H04B7/208 ,  H04L27/28

CPC分类号： H04L5/0094 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0089

摘要： A method communicates symbols in a cell of a multiple-input multiple-output (MIMO) network that includes a set of mobile station and a base station. The symbols are communicated using orthogonal frequency division multiplexing (OFDM) and time division duplex (TDM). A frame for communicating the symbols between the base station and the mobile station is constructed. The frame is partitioned into a downlink subframe and an uplink subframe. The uplink subframe is partitioned into a first zone and a second zone, wherein the first zone uses orthogonal frequency division multiple access (OFDMA) and the second zone uses single carrier frequency division multiple access (SC-FDMA).

摘要翻译： 一种方法在包括一组移动台和基站的多输入多输出（MIMO）网络的小区中传送符号。 使用正交频分复用（OFDM）和时分双工（TDM）来传送符号。 构建用于在基站和移动站之间传送符号的帧。 帧被划分为下行链路子帧和上行链路子帧。 上行链路子帧被划分为第一区域和第二区域，其中第一区域使用正交频分多址（OFDMA），第二区域使用单载波频分多址（SC-FDMA）。

公开(公告)号：US20090117911A1

公开(公告)日：2009-05-07

申请号：US11934131

申请日：2007-11-02

申请人： Andreas F. Molisch ,  Lun Dong ,  Philip V. Orlik ,  Jinyun Zhang

发明人： Andreas F. Molisch ,  Lun Dong ,  Philip V. Orlik ,  Jinyun Zhang

IPC分类号： H04Q7/20

CPC分类号： H04B7/0678 ,  H04B7/024 ,  H04B7/043 ,  H04B7/0443

摘要： The embodiments of the invention provide an adaptive method for base station cooperation in a wireless network. In a multi-user communications network that includes base stations, and in which each base station is associated with a cell, and in which each cell includes one or more mobile stations, each base station determines pre-coding matrices for full-cooperation, semi-cooperation and non-cooperation. Each base stations also determines a sum rate SRfull for full-cooperation, a sum rate SRsemi semi-cooperation, and a sum rate SRnon for non-cooperation. Then, each base station selects the pre-coding for full-cooperation, the pre-coding matrices for semi cooperation, or the pre-coding matrices for non cooperation. Each base station transmits signals according to the selected per-coding matrices.

摘要翻译： 本发明的实施例提供了一种用于无线网络中的基站协作的自适应方法。 在包括基站并且其中每个基站与小区相关联并且每个小区包括一个或多个移动站的多用户通信网络中，每个基站确定用于全协作的预编码矩阵，半 合作不合作。 每个基站还确定全面合作的总和速率，SRsemi半合作率和非合作的总和速率SRnon。 然后，每个基站选择用于全协作的预编码，用于半合作的预编码矩阵，或者用于非合作的预编码矩阵。 每个基站根据所选择的每个编码矩阵发送信号。

公开(公告)号：US20090116589A1

公开(公告)日：2009-05-07

申请号：US11979369

申请日：2007-11-01

申请人： Jinyun Zhang ,  Fei Peng

发明人： Jinyun Zhang ,  Fei Peng

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H04L27/2601 ,  H04B17/309 ,  H04B17/373 ,  H04B17/382 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0016 ,  H04L1/0025 ,  H04L1/06 ,  H04L25/0204

摘要： A multiple carrier wireless communications system includes a channel predictor, a performance predictor, and a link adapter. The channel predictor is configured to predict channel state information for a next packet based on channel state information for the current packet. The performance predictor includes an uncoded performance predictor configured to predict system performance at an input of a decoder based on a modulation type and the predicted channel state information for the next packet, and a decoder input-output performance mapper configured to determine a required coding rate based on a requested system performance and the predicted system performance at the input of the decoder. The link adapter includes a modulation and coding scheme (MCS) updater configured to identify a MCS based on the required coding rate.

摘要翻译： 多载波无线通信系统包括信道预测器，性能预测器和链路适配器。 信道预测器被配置为基于当前分组的信道状态信息来预测下一分组的信道状态信息。 性能预测器包括未编码的性能预测器，其被配置为基于调制类型和用于下一个分组的预测信道状态信息来预测解码器的输入端的系统性能，以及解码器输入 - 输出性能映射器，被配置为确定所需的编码率 基于所请求的系统性能和解码器输入端的预测系统性能。 链路适配器包括被配置为基于所需编码速率来识别MCS的调制和编码方案（MCS）更新器。

公开(公告)号：US20090116544A1

公开(公告)日：2009-05-07

申请号：US11979350

申请日：2007-11-01

申请人： Jinyun Zhang ,  Fei Peng

发明人： Jinyun Zhang ,  Fei Peng

IPC分类号： H04B3/46 ,  H04B17/00

CPC分类号： H04L1/0009 ,  H04L1/0003 ,  H04L1/0019 ,  H04L1/20

摘要： A multiple carrier wireless communications system includes a channel predictor, a performance predictor, and a link adapter. The channel predictor predicts channel state information for a next packet based on channel state information for the current packet. The performance predictor includes an uncoded performance predictor to predict system performance at a decoder input based on a modulation type and the predicted channel state information for the next packet, and a decoder input-output performance mapper to predict system performance at a decoder output based on a coding rate and the predicted system performance at the decoder input. The link adapter includes a link throughput controller to generate a throughput indicator based on a requested system performance and the predicted system performance at the decoder output, and a modulation and coding scheme (MCS) updater to identify a MCS based on the throughput indicator.

摘要翻译： 多载波无线通信系统包括信道预测器，性能预测器和链路适配器。 信道预测器基于当前分组的信道状态信息预测下一分组的信道状态信息。 性能预测器包括未编码的性能预测器，用于基于调制类型和用于下一个分组的预测信道状态信息来预测解码器输入处的系统性能，以及解码器输入 - 输出性能映射器，以基于解码器输出预测系统性能 编码率和解码器输入端的预测系统性能。 链路适配器包括链路吞吐量控制器，用于基于所请求的系统性能和解码器输出端的预测系统性能以及基于吞吐量指示符来识别MCS的调制和编码方案（MCS）更新器生成吞吐量指示符。

公开(公告)号：US20090111473A1

公开(公告)日：2009-04-30

申请号：US11931378

申请日：2007-10-31

申请人： Zhifeng Tao ,  Tairan Wang ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Tairan Wang ,  Jinyun Zhang

IPC分类号： H04Q7/20

CPC分类号： H04W36/18

摘要： A method and system communicates cooperatively between base stations and mobile stations in a wireless cellular network. At least two mobile stations are detected in a handover region. A diversity set is established for each mobile station in the handover region. Each diversity set identifies at least two base stations that can communicate with the associated mobile station. The at least two base stations and the at least two mobile stations are combined into members of a cooperation set. A resource is allocated to selected members of the cooperative set. The selected members are notified of the allocated resource. Then, the selected base stations of the cooperation set communicate concurrently with the selected mobile stations using the same allocated resource.

摘要翻译： 方法和系统在无线蜂窝网络中的基站和移动台之间协作通信。 在切换区域中至少检测到两个移动站。 为切换区域中的每个移动站建立分集集合。 每个分集集识别可以与相关联的移动台进行通信的至少两个基站。 所述至少两个基站和所述至少两个移动台组合成合作集的成员。 资源被分配给合作集合的选定成员。 所选成员被通知所分配的资源。 然后，使用相同的分配资源，所选择的协作集的基站与所选择的移动台同时进行通信。

公开(公告)号：US20080165879A1

公开(公告)日：2008-07-10

申请号：US11620089

申请日：2007-01-05

申请人： Neelesh B. Mehta ,  Erdem Bala ,  Jinyun Zhang

发明人： Neelesh B. Mehta ,  Erdem Bala ,  Jinyun Zhang

IPC分类号： H04B7/02

CPC分类号： H04B7/0691 ,  H04B7/061

摘要： A method and system switches antennas in an orthogonal frequency division multiplexed access (OFDMA) wireless communication system while transmitting symbols. Each symbol includes a cyclic prefix and a block of data signals. The symbols are transmitted during a first portion of a transmission time interval (TTI), from a first antenna. Then, the RF chain is switched to a second antenna to transmit the symbols, and in which the switching is performed substantially between transmitting two consecutive transmitted symbols.

摘要翻译： 方法和系统在发送符号的同时在正交频分复用接入（OFDMA）无线通信系统中切换天线。 每个符号包括循环前缀和数据信号块。 在传输时间间隔（TTI）的第一部分期间，从第一天线发送符号。 然后，将RF链切换到第二天线以发送符号，并且其中基本上在发送两个连续发送的符号之间执行切换。

公开(公告)号：US20080165866A1

公开(公告)日：2008-07-10

申请号：US11620767

申请日：2007-01-08

申请人： Koon Hoo Teo ,  Hongyuan Zhang ,  Jinyun Zhang

发明人： Koon Hoo Teo ,  Hongyuan Zhang ,  Jinyun Zhang

IPC分类号： H04K1/10 ,  H04Q7/20

CPC分类号： H04L5/0039 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0044 ,  H04W36/18

摘要： In a cellular network, symbols are encoded and modulated to produce a modulated signal The modulated signal is mapped to a subcarrier using a spatial mapping matrix. An inverse fast Fourier transform is applied to the mapped signal to produce groups of tones. The groups of tones are transmitting concurrently to multiple receivers using the same channel as orthogonal frequency-division multiplexing access (OFDMA) signals. There is one group of tones for each receiver.

摘要翻译： 在蜂窝网络中，符号被编码和调制以产生调制信号。使用空间映射矩阵将调制信号映射到子载波。 对映射的信号应用快速傅立叶逆变换以产生音调组。 使用与正交频分复用接入（OFDMA）信号相同的信道，这些音调组同时发送到多个接收机。 每个接收器有一组音调。

公开(公告)号：US20080165670A1

公开(公告)日：2008-07-10

申请号：US11620123

申请日：2007-01-05

申请人： Zhifeng Tao ,  Toshiyuki Kuze ,  Shigeru Uchida ,  Kentarou Sawa ,  Koon Hoo Teo ,  Jinyun Zhang

发明人： Zhifeng Tao ,  Toshiyuki Kuze ,  Shigeru Uchida ,  Kentarou Sawa ,  Koon Hoo Teo ,  Jinyun Zhang

IPC分类号： H04J11/00

CPC分类号： H04L5/0053 ,  H04L1/1812 ,  H04L1/1822 ,  H04L5/0007 ,  H04L5/0091 ,  H04L47/10 ,  H04L47/14 ,  H04L47/34

摘要： A method and system enables and improves performance of hybrid automatic repeat request (HARQ) operations on channels between stations of an orthogonal frequency division multiple access (OFDMA) wireless communication network. There, the number of parallel HARQ channels is increased adaptively, and one connection identifier is used to unambiguously identify a set of MAC protocol data units (MPDUs) communicated over parallel HARQ channels. A sequence number is used to avoid out-of-order MPDU delivery when MPDUs are transmitted over parallel HARQ channels. The MPDUs can be concatenated or encapsulated. The maximum number of the parallel HARQ channels can be increased to 256, and can be negotiated when a station enters or re-enters the network.

摘要翻译： 一种方法和系统能够在正交频分多址（OFDMA）无线通信网络的站之间的信道上实现并提高混合自动重传请求（HARQ）操作的性能。 在此，自适应地增加并行HARQ信道的数量，并且使用一个连接标识符来明确地标识通过并行HARQ信道传送的一组MAC协议数据单元（MPDU）。 当MPDU通过并行HARQ信道发送时，序列号用于避免无序MPDU传送。 MPDU可以级联或封装。 并行HARQ信道的最大数量可以增加到256，并且当站进入或重新进入网络时可以协商。