公开(公告)号：US20130010840A1

公开(公告)日：2013-01-10

申请号：US13620741

申请日：2012-09-15

申请人： Mohammad Ali Maddah-Ali ,  Seyed Abolfazi Motahari ,  Amir Khandani ,  Mohammadhadi Baligh ,  Ming Jia ,  Jianglei Ma ,  Peiying Zhu ,  Wen Tong

发明人： Mohammad Ali Maddah-Ali ,  Seyed Abolfazi Motahari ,  Amir Khandani ,  Mohammadhadi Baligh ,  Ming Jia ,  Jianglei Ma ,  Peiying Zhu ,  Wen Tong

IPC分类号： H04B7/15

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.

公开(公告)号：US20130010808A1

公开(公告)日：2013-01-10

申请号：US13616438

申请日：2012-09-14

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： H04L27/28

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.

公开(公告)号：US08351967B2

公开(公告)日：2013-01-08

申请号：US13252636

申请日：2011-10-04

申请人： Ming Jia ,  Jianglei Ma ,  Jianming Wu ,  Peiying Zhu ,  Wen Tong

发明人： Ming Jia ,  Jianglei Ma ,  Jianming Wu ,  Peiying Zhu ,  Wen Tong

IPC分类号： H04B7/00

CPC分类号： H04W72/082 ,  H04B7/0417 ,  H04B7/0443 ,  H04B7/0452 ,  H04B7/0632 ,  H04W72/1231

摘要： A wireless communication method and system using virtual MIMO (“V-MIMO”) are provided. Post processing signal to interference and noise ratios (“SINR”) for a plurality of signals corresponding to a plurality of mobile terminals arranged as a V-MIMO group are estimated. The one of the plurality of mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected mobile terminal is scheduled. The signal corresponding to the selected mobile terminal is cancelled. Post processing signal to interference and noise ratios (“SINR”) for the signals corresponding to the remaining mobile terminals is re-estimated. The one of the remaining mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected remaining mobile terminal is scheduled.

摘要翻译： 提供了一种使用虚拟MIMO（V-MIMO）的无线通信方法和系统。 估计对应于排列为V-MIMO组的多个移动终端的多个信号的后处理信号与干扰和噪声比（SINR）。 选择具有最高后处理SINR的多个移动终端中的一个。 安排所选移动终端的无线通信。 对应于所选移动终端的信号被取消。 对与剩余的移动终端相对应的信号的后处理信号与干扰和噪声比（SINR）进行重新估计。 选择具有最高后处理SINR的剩余移动终端中的一个。 调度所选择的剩余移动终端的无线通信。

公开(公告)号：US20120328040A1

公开(公告)日：2012-12-27

申请号：US13608205

申请日：2012-09-10

申请人： Aaron Callard ,  Jianglei Ma

发明人： Aaron Callard ,  Jianglei Ma

IPC分类号： H04B7/06

CPC分类号： H04W72/005 ,  H04B7/0678 ,  H04B7/0689 ,  H04L5/0092 ,  H04W72/0453

摘要： Data is scrambled at a transmitter according to one of a number of predetermined scrambling sequences which are associated with a particular one of a number of predetermined transmit antenna diversity schemes (i.e., a specific number of transmit antenna ports). Received data is decoded using one or more of the known transmit antenna diversity schemes and the scrambled data is descrambled according to a corresponding descrambling sequence (related to the scrambling sequence). Based on the descrambled data, the receiver determines which transmit antenna diversity scheme (i.e., the number of antenna ports) is used by the transmitter. In one specific embodiment, CRC parity data is scrambled in the transmitter and the receiver descrambles the recovered CRC parity data according to a descrambling sequence, computes CRC parity data from the received data, and compares the descrambled CRC parity data to the newly computed CRC parity data.

摘要翻译： 根据与多个预定发射天线分集方案（即，特定数量的发射天线端口）中的特定数量的特定一个相关联的多个预定加扰序列之一，在发射机处对数据进行加扰。 使用已知的发射天线分集方案中的一个或多个对接收的数据进行解码，并且根据相应的解扰序列（与加扰序列有关）来对加密的数据进行解扰。 基于解扰数据，接收机确定发射机使用哪个发射天线分集方案（即，天线端口的数目）。 在一个具体实施例中，CRC奇偶校验数据在发射机中被加扰，并且接收机根据解扰序列对恢复的CRC奇偶校验数据进行解扰，从接收到的数据计算CRC奇偶校验数据，并将解扰的CRC奇偶校验数据与新计算的CRC奇偶校验比较 数据。

公开(公告)号：US08340677B2

公开(公告)日：2012-12-25

申请号：US12827177

申请日：2010-06-30

申请人： Jianglei Ma ,  Mohammadhadi Baligh ,  Aaron Callard

发明人： Jianglei Ma ,  Mohammadhadi Baligh ,  Aaron Callard

IPC分类号： H04W72/00

CPC分类号： H04W72/0453 ,  H04W16/30 ,  H04W52/283 ,  H04W52/386 ,  H04W72/0426 ,  H04W72/08 ,  H04W92/20

摘要： In accordance with an embodiment, a method of operating a base station in a wireless system, includes partitioning a frequency band into at least one band of a first type and at least one band of a second type, and coordinating the partitioning with at least one further base station. The at least one band of the first type includes a band on which the base station transmits power proportional to a distance of a user device from the base station, and the at least one band of the second type comprises a band on which base station transmits a data rate inversely proportional to a distance of a user device from the base station.

摘要翻译： 根据实施例，一种在无线系统中操作基站的方法包括将频带划分成第一类型的至少一个频带和至少一个第二类型的频带，并且与至少一个 进一步的基站。 所述第一类型的至少一个频带包括频带，所述基站在所述频带上发送与所述基站的用户设备的距离成比例的功率，并且所述第二类型的所述至少一个频带包括基站发送的频带 数据速率与用户设备与基站的距离成反比。

公开(公告)号：US08340072B2

公开(公告)日：2012-12-25

申请号：US13114579

申请日：2011-05-24

申请人： Jianglei Ma ,  Hang Zhang ,  Wen Tong ,  Ming Jia ,  Peiying Zhu ,  Mo-Han Fong

发明人： Jianglei Ma ,  Hang Zhang ,  Wen Tong ,  Ming Jia ,  Peiying Zhu ,  Mo-Han Fong

IPC分类号： H04W72/04

CPC分类号： H04L27/2692 ,  H04B7/02 ,  H04B7/0452 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0048 ,  H04L7/043 ,  H04L27/2613 ,  H04L27/265 ,  H04L27/2655 ,  H04L27/2686 ,  H04W24/02

摘要： The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble, and the resulting peaks will provide the locations of candidate base stations. The base station specific search is then performed in the vicinities of those peaks by using base station specific pseudo-noise sequences. With this two stage cell search, the searching window is drastically reduced. The preamble is matched to known values by a respective receiver to decode the signals and permit multiple signals to be transferred from the transmitter to the receiver. The preamble may comprise two parts, Preamble-I and Preamble-2, which may be used in different systems, including multioutput, multi-input (MIMO) systems.

摘要翻译： 本发明提供插入到OFDMA帧中并具有参与传输的所有基站的公共序列的前同步码。 用户站使用公共前导码上的公共序列执行精细同步，并且所得到的峰值将提供候选基站的位置。 然后通过使用基站专用伪噪声序列，在那些峰附近执行基站专用搜索。 通过这两个阶段的单元格搜索，搜索窗口大大减少。 前导码由相应的接收机与已知值匹配以对信号进行解码，并允许多个信号从发射机传送到接收机。 前导码可以包括两个部分，即前导码1和前导码2，其可以在不同的系统中使用，包括多输入多输入（MIMO）系统。

公开(公告)号：US08315225B2

公开(公告)日：2012-11-20

申请号：US13068836

申请日：2009-09-21

申请人： Hua Xu ,  Jianglei Ma ,  Dong-Sheng Yu ,  Ming Jia ,  Aaron Callard ,  Mohammadhadi Baligh

发明人： Hua Xu ,  Jianglei Ma ,  Dong-Sheng Yu ,  Ming Jia ,  Aaron Callard ,  Mohammadhadi Baligh

IPC分类号： H04W72/00

CPC分类号： H04L5/005 ,  H04B7/0413 ,  H04B7/0684 ,  H04B7/0691 ,  H04L5/0023 ,  H04L5/0051

摘要： A method of operation of a MIMO transmitter, in a cellular network supporting both legacy standard-compliant mobile terminals and next generation standard-compliant mobile terminals, the method comprising defining a matrix of resource blocks within an information channel of the cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency subband; assigning a first set of reference signals (RSs) for the legacy standard-compliant mobile terminals to resource blocks at specific locations within the matrix to be transmitted by the MIMO transmitter, the specific locations being defined by, the legacy standard; and assigning a second set of RSs for the next-generation standard-compliant mobile terminals to other resource blocks within the matrix to be transmitted by the MIMO transmitter.

摘要翻译： 一种在支持传统标准兼容移动终端和下一代标准兼容移动终端的蜂窝网络中的MIMO发射机的操作方法，所述方法包括定义蜂窝网络的信息信道内的资源块矩阵，其中每个 资源块对应于给定频率子带处的传输时隙的子载波的区域; 将传统标准兼容移动终端的第一组参考信号（RS）分配给由MIMO发射机发送的矩阵内的特定位置处的资源块，所述特定位置由传统标准定义; 以及将下一代标准兼容移动终端的第二组RS分配给由MIMO发射机发送的矩阵内的其他资源块。

公开(公告)号：US08305949B2

公开(公告)日：2012-11-06

申请号：US12440879

申请日：2007-09-11

申请人： Wen Tong ,  Jianglei Ma ,  Mo-Han Fong ,  Peiying Zhu ,  Aaron Callard

发明人： Wen Tong ,  Jianglei Ma ,  Mo-Han Fong ,  Peiying Zhu ,  Aaron Callard

IPC分类号： H04H20/71

CPC分类号： H04W4/06 ,  H04B7/0689 ,  H04L5/0007 ,  H04L5/0023

摘要： A method of OFDM transmission/reception comprising: transmitting broadcast/multicast signals on a first antenna and unicast signals on a second antenna; segregating broadcast/multicast sub-channelization from unicast channels sub-channelization based on FDM (frequency division multiplexing)/TDM (time division multiplexing) sub-channelization.

摘要翻译： 一种OFDM发送/接收的方法，包括：在第一天线上发送广播/组播信号，在第二天线上发送单播信号; 基于FDM（频分复用）/ TDM（时分复用）子信道化的单播信道子信道化分离广播/多播子信道化。

公开(公告)号：US08254429B1

公开(公告)日：2012-08-28

申请号：US12243023

申请日：2008-10-01

申请人： Hua Xu ,  Jianglei Ma ,  Ming Jia

发明人： Hua Xu ,  Jianglei Ma ,  Ming Jia

IPC分类号： H04B1/00 ,  H04L27/00

CPC分类号： H04B7/0669 ,  H04L1/0073 ,  H04L1/0668 ,  H04L1/1607 ,  H04L1/1861 ,  H04L5/0055 ,  H04W52/42 ,  H04W72/1263 ,  H04W72/1278

摘要： In accordance with embodiments, a communication system includes a first device and a second device in communication with the first device. The second device has at least a first pair and a second pair of antennas. The second device spreads a communication bit by a predetermined spreading factor and forms a first set of spatial block codes in frequency domain based on the spread communication bit. The first set of spatial block codes being consecutively transmitted on one of the first and second pairs of antennas.

摘要翻译： 根据实施例，通信系统包括与第一设备通信的第一设备和第二设备。 第二装置具有至少第一对和第二对天线。 第二设备以预定的扩展因子扩展通信位，并且基于扩展通信位在频域中形成第一组空间块码。 第一组空间块码在第一和第二对天线之一上连续发射。

公开(公告)号：US08229441B2

公开(公告)日：2012-07-24

申请号：US12197942

申请日：2008-08-25

申请人： Aaron Callard ,  Jianglei Ma ,  Sophie Vrzic

发明人： Aaron Callard ,  Jianglei Ma ,  Sophie Vrzic

IPC分类号： H04W40/00

CPC分类号： H04W72/085 ,  H04B7/022 ,  H04W72/005

摘要： The signals from adjacent transmitters reinforce one another. As a result of this over-the-air combining, signal quality is improved in the network and especially at or near cell boundaries. The present invention provides a graduated single frequency network (GSFN) wherein transmitters in cells throughout a geographic area cooperate to broadcast data to user terminals throughout the geographic area, and adjacent transmitters transmit signals that substantially reinforce one another. When transmitting the data, transmitters in certain adjacent cells throughout the geographic area may employ slightly different transmit parameters to provide slightly different transmission signals. The transmission signals used to transmit the data may be varied in a graduated fashion throughout the geographic area, wherein even when there is a difference in the transmission signals of transmitters in adjacent cells, the transmission signals reinforce one another despite being different.

摘要翻译： 来自相邻发射机的信号相互加强。 作为这种空中组合的结果，网络中的信号质量得到改善，特别是在小区边界处或附近。 本发明提供了一种分级单频网络（GSFN），其中整个地理区域中的小区中的发射机协作以在整个地理区域中向用户终端广播数据，并且相邻的发射机发射基本上相互强化的信号。 当发送数据时，整个地理区域的某些相邻小区中的发射机可以采用稍微不同的发射参数来提供稍微不同的传输信号。 用于发送数据的传输信号可以在整个地理区域以分级方式变化，其中即使当相邻小区中的发射机的传输信号存在差异时，尽管不同，传输信号彼此相互加强。