公开(公告)号：US20160365905A1

公开(公告)日：2016-12-15

申请号：US14738144

申请日：2015-06-12

申请人： Hao Hu ,  Ming Jia ,  Jianglei Ma

发明人： Hao Hu ,  Ming Jia ,  Jianglei Ma

IPC分类号： H04B7/04 ,  H04L27/34 ,  H04L25/497

CPC分类号： H04B7/0456 ,  H04B7/0482 ,  H04B7/0697 ,  H04L25/497 ,  H04L27/3488 ,  H04L27/3494 ,  H04W88/02 ,  H04W88/08

摘要： Methods and systems for transmitting a signal. A first signal from a first device operating in spatial multiplexing transmission is concatenated with a second signal from a second device operating without spatial multiplexing transmission to generate a concatenated signal in a non-linearly superpositioned constellation, in which a portion of the constellation corresponding to the first signal is symmetrical about each of the real and imaginary axes. The concatenated signal is processed according to transmission processing of the second device, to generate a processed signal. The processed signal is transmitted.

摘要翻译： 发送信号的方法和系统。 来自在空间复用传输中工作的第一设备的第一信号与来自不进行空间复用传输的第二设备的第二信号连接，以在非线性叠加星座中生成级联信号，其中星座的一部分对应于 第一个信号是关于每个实数和虚轴对称的。 根据第二设备的传输处理来处理级联的信号，以产生处理的信号。 处理后的信号被发送。

公开(公告)号：US09356735B2

公开(公告)日：2016-05-31

申请号：US13615341

申请日：2012-09-13

申请人： Wen Tong ,  Ming Jia ,  Peiying Zhu ,  Alexandre Mikhailovich Chloma ,  Mikhail Germanovich Bakouline ,  Vitali Borisovich Kreindeline

发明人： Wen Tong ,  Ming Jia ,  Peiying Zhu ,  Alexandre Mikhailovich Chloma ,  Mikhail Germanovich Bakouline ,  Vitali Borisovich Kreindeline

IPC分类号： H04L27/00 ,  H03K9/00 ,  H04L1/06

CPC分类号： H04L1/0618

摘要： Although orthonormal space-time coding matrices provide for optimal communication system performance in that associated correlation matrices include no non-zero off-diagonal elements, unity code rate orthonormal coding matrices are difficult to identify for arbitrary communication network equipment. According to embodiments of the present invention, non-orthonormal space-time coding matrices, for which associated correlation matrices include non-zero off-diagonal elements, are used to encode data symbols. The non-orthonormal space-time coding matrices are more easily determined, and undesirable effects of the non-zero off-diagonal components are reduced by selecting a coding matrix from among a number of such matrices. For example, a particular space-time coding matrix may be selected from a number of generated space-time coding matrices based on a number of non-zero off-diagonal elements or a power of a trace of the associated correlation matrices.

公开(公告)号：US09036663B2

公开(公告)日：2015-05-19

申请号：US13119630

申请日：2009-09-18

申请人： Mohammadhadi Baligh ,  Masoud Ebrahimi Tazeh Mahalleh ,  Jianglei Ma ,  Hua Xu ,  Ming Jia ,  Amir Khandani

发明人： Mohammadhadi Baligh ,  Masoud Ebrahimi Tazeh Mahalleh ,  Jianglei Ma ,  Hua Xu ,  Ming Jia ,  Amir Khandani

IPC分类号： H04J13/18 ,  H04L1/06 ,  H04B7/06 ,  H04J13/00

CPC分类号： H04J13/18 ,  H04B7/0669 ,  H04L1/0668

摘要： Aspects of the invention are directed to a transmit diversity method for use in a wireless terminal having a plurality of antennas and a wireless terminal configured to implement the method. The transmit diversity method includes using a different orthogonal sequence for each antenna, or group of antennas, for transmitting an uplink control channel from a wireless terminal to a base station. A first step of the method involves assigning at least one orthogonal sequence to one or more of the plurality of antennas, each of the plurality of antennas being assigned at least one orthogonal sequence. Once the orthogonal sequence is assigned, a further step involves scrambling a signal to be transmitted on the physical uplink control channel (PUCCH) using the at least one orthogonal sequence for each antenna thereby producing a scrambled PUCCH for transmission by each antenna. The scrambled PUCCH can then be transmitted on the plurality of antennas.

摘要翻译： 本发明的方面涉及一种用于具有多个天线的无线终端和被配置为实现该方法的无线终端的发射分集方法。 发射分集方法包括对于每个天线或天线组使用不同的正交序列，用于从无线终端向基站发送上行链路控制信道。 该方法的第一步涉及将至少一个正交序列分配给多个天线中的一个或多个，多个天线中的每一个被分配至少一个正交序列。 一旦分配了正交序列，另外的步骤包括使用每个天线的至少一个正交序列来扰乱在物理上行链路控制信道（PUCCH）上发送的信号，从而产生用于每个天线发送的加扰PUCCH。 然后可以在多个天线上发送加扰的PUCCH。

公开(公告)号：US08913619B2

公开(公告)日：2014-12-16

申请号：US13620623

申请日：2012-09-14

申请人： Hua Xu ,  Jianglei Ma ,  Ming Jia ,  Hang Zhang

发明人： Hua Xu ,  Jianglei Ma ,  Ming Jia ,  Hang Zhang

IPC分类号： H04L12/28 ,  H04J3/08 ,  H04W72/04 ,  H04B7/155 ,  H04B7/26

CPC分类号： H04W72/042 ,  H04B7/155 ,  H04B7/2606

摘要： In a method of providing downlink retransmissions to a mobile station in a wireless communication network, the wireless communication network comprising a base station communicatively linked to a transparent relay station, the base station receives a request for a retransmission from the mobile station; schedules resources for the retransmission; signals scheduling information for the retransmission to the transparent relay station via a control link; and the transparent relay station receives the scheduling information for the retransmission on the control link; and sends the retransmission to the mobile station in a retransmit subframe on a retransmit frequency band.

摘要翻译： 在向无线通信网络中的移动台提供下行链路重发的方法中，所述无线通信网络包括通信地链接到透明中继站的基站，所述基站从所述移动台接收重发请求; 调度资源进行重传; 通过控制链路向所述透明中继站发送用于重传的调度信息; 透明中继站在控制链路上接收重发调度信息; 并在再发送频带的重发子帧中向移动台发送重发。

公开(公告)号：US08830816B2

公开(公告)日：2014-09-09

申请号：US13487898

申请日：2012-06-04

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： H04J11/00

CPC分类号： H04W36/08 ,  H04B7/022 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0667 ,  H04B7/0697 ,  H04J11/0069 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0048 ,  H04L7/0008 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2613 ,  H04L27/2627 ,  H04L27/2628 ,  H04L27/2663 ,  H04L27/2665 ,  H04L27/2672 ,  H04L27/2675

摘要： A method and apparatus are provided for performing acquisition, synchronization and cell selection within an MIMO-OFDM communication system. A coarse synchronization is performed to determine a searching window. A fine synchronization is then performed by measuring correlations between subsets of signal samples, whose first signal sample lies within the searching window, and known values. The correlations are performed in the frequency domain of the received signal. In a multiple-output OFDM system, each antenna of the OFDM transmitter has a unique known value. The known value is transmitted as pairs of consecutive pilot symbols, each pair of pilot symbols being transmitted at the same subset of sub-carrier frequencies within the OFDM frame.

摘要翻译： 提供了一种用于在MIMO-OFDM通信系统内执行采集，同步和小区选择的方法和装置。 执行粗同步以确定搜索窗口。 然后通过测量其第一信号样本位于搜索窗口内的信号样本的子集与已知值之间的相关性来执行精细同步。 相关性在接收信号的频域中进行。 在多输出OFDM系统中，OFDM发射机的每个天线具有唯一的已知值。 已知值作为连续导频符号对发送，每对导频符号在OFDM帧内的子载波频率的相同子集上发送。

公开(公告)号：US08774151B2

公开(公告)日：2014-07-08

申请号：US13435002

申请日：2012-03-30

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

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

IPC分类号： H04W4/00

CPC分类号： H04L5/0048 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/0634 ,  H04B7/0639 ,  H04L5/14 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242 ,  H04L25/03343 ,  H04L27/2601 ,  H04L27/2613 ,  H04L2025/03426 ,  H04L2025/03802

摘要： Methods, devices and systems are provided for transmitting and receiving MIMO signals. In one embodiment, transmitting of the MIMO signals involves pre-coding each of at least two data symbols using a respective pre-coding codeword to preclude a corresponding plurality of pre-coded data symbols. A respective signal is transmitted from each of a plurality of antennas, the respective signal including one of the pre-coded signals and at least one pilot for use in channel estimation. The signals collectively further include at least one beacon pilot vector consisting of a respective beacon pilot per antenna, the beacon pilot vector containing contents known to a receiver for use by the receiver in determining the codeword used to pre-code the at least one data signal.

摘要翻译： 提供了发送和接收MIMO信号的方法，设备和系统。 在一个实施例中，MIMO信号的发送涉及使用相应的预编码码字对至少两个数据符号中的每一个进行预编码，以排除相应的多个预编码数据符号。 相应的信号从多个天线中的每一个发送，各个信号包括一个预编码信号和至少一个导频，用于信道估计。 信号集体地进一步包括由每个天线的每个信标导频组成的至少一个信标导频向量，信标导频向量包含接收机已知的内容，以供接收机在确定用于对所述至少一个数据信号进行预编码的码字时使用 。

公开(公告)号：US08644412B2

公开(公告)日：2014-02-04

申请号：US13562507

申请日：2012-07-31

申请人： Ming Jia ,  Wen Tong ,  Dong-Shen Yu

发明人： Ming Jia ,  Wen Tong ,  Dong-Shen Yu

IPC分类号： H04B7/02 ,  H04B1/10

CPC分类号： H04B7/0667 ,  H04B7/0848 ,  H04B7/0891 ,  H04L1/0045 ,  H04L1/0618 ,  H04L5/023 ,  H04L27/2647

摘要： A level of interference affecting signal components of received communication signals is estimated and used to weight the signal components. The signal components in a each of a number of groups of signal components are weighted based on respective interference estimates to thereby adjust signal components for colored interference, which may vary significantly between different groups of signal components. Each group of signal components may include a single component or components within a relatively narrow sub-band of the communication signals, such as a coherence bandwidth of an Orthogonal Frequency Division Multiplexing (OFDM) signal.

摘要翻译： 估计接收到的通信信号的影响信号分量的干扰电平，并用于加权信号分量。 基于相应的干扰估计来对多个信号分量组中的每一个中的信号分量进行加权，从而调整用于着色干扰的信号分量，其可以在不同的信号分量组之间显着变化。 每组信号分量可以包括通信信号的相对窄的子带内的单个分量，例如正交频分复用（OFDM）信号的相干带宽。

公开(公告)号：US08619713B2

公开(公告)日：2013-12-31

申请号：US12983636

申请日：2011-01-03

申请人： Jianglei Ma ,  Ming Jia ,  Peiying Zhu ,  Wen Tong ,  Dong-Sheng Yu

发明人： Jianglei Ma ,  Ming Jia ,  Peiying Zhu ,  Wen Tong ,  Dong-Sheng Yu

IPC分类号： H04W4/00 ,  H04J11/00 ,  H04J1/00

CPC分类号： H04W36/18 ,  H04B7/022 ,  H04L1/0618 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0025 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L25/0232 ,  H04L27/2613 ,  H04L27/2626 ,  H04L27/2647 ,  H04L27/2655

摘要： The present invention relates to soft handoffs in an OFDM system. Each mobile terminal measures pilot signal strengths of transmissions from adjacent base stations. If the pilot signal strength for a base station exceeds the defined threshold, that base station is added to an active set list. Each mobile terminal notifies the base stations of their active set lists. By providing the set list to the base station controller and the servicing base station, the mobile terminal identifies the sole servicing base station or triggers a soft handoff mode when multiple base stations appear on the active set list. The soft handoff mode uses a combination of scheduling and space-time coding to affect efficient and reliable handoffs.

摘要翻译： 本发明涉及OFDM系统中的软切换。 每个移动终端测量来自相邻基站的传输的导频信号强度。 如果基站的导频信号强度超过定义的阈值，则该基站被添加到活动集列表中。 每个移动终端向基站通知其活动集列表。 通过将设置列表提供给基站控制器和服务基站，移动终端识别唯一服务基站，或者当多个基站出现在活动集列表上时触发软切换模式。 软切换模式使用调度和时空编码的组合来影响有效和可靠的切换。

公开(公告)号：US08594247B2

公开(公告)日：2013-11-26

申请号：US13437066

申请日：2012-04-02

申请人： Ming Jia ,  Jianglei Ma ,  Peiying Zhu ,  Dong-Sheng Yu ,  Wen Tong

发明人： Ming Jia ,  Jianglei Ma ,  Peiying Zhu ,  Dong-Sheng Yu ,  Wen Tong

IPC分类号： H03D1/00 ,  H04L27/06

CPC分类号： H04L1/0631 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0036 ,  H04L1/208 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L25/0226 ,  H04L25/0236 ,  H04L25/03318 ,  H04L25/067

摘要： A method and apparatus for measuring channel quality over which has been transmitted a sequence of symbols produced by encoding and constellation mapping a source data element sequence. A sequence of received symbols is received over the channel. The sequence of received symbols is de-mapped based on a first channel quality indicator previously transmitted to a transmitter of the sequence of symbols. The de-mapped symbols are decoded to produce a decoded output sequence. In some embodiments, the decoding may be based on the first channel quality indicator. The decoded output sequence is re-encoded to produce a re-encoded output sequence. The de-mapped symbols are correlated with the re-encoded output sequence to produce a second channel quality indicator. The second channel quality indicator is transmitted to the transmitter to adaptively select a type of mapping based on the second channel quality indicator.

摘要翻译： 一种用于测量信道质量的方法和装置，已经发送了通过对源数据元素序列进行编码和星座映射而产生的符号序列。 通过该信道接收一系列接收到的符号。 基于先前发送到符号序列的发射机的第一信道质量指示符来对接收符号的序列进行解映射。 解映射的符号被解码以产生解码的输出序列。 在一些实施例中，解码可以基于第一信道质量指示符。 解码的输出序列被重新编码以产生重新编码的输出序列。 去映射符号与重新编码的输出序列相关，以产生第二信道质量指示符。 第二信道质量指示符被发送到发射机，以基于第二信道质量指示符自适应地选择一种类型的映射。

公开(公告)号：US08588276B2

公开(公告)日：2013-11-19

申请号：US13333463

申请日：2011-12-21

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

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

IPC分类号： H04B1/707

CPC分类号： H04J13/0003 ,  H04B1/707 ,  H04B7/0404 ,  H04B7/0678 ,  H04J13/00 ,  H04J13/16 ,  H04L5/0016 ,  H04L5/0026 ,  H04L5/0048 ,  H04L5/005 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2627 ,  H04W72/044

摘要： In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.

摘要翻译： 在本发明的一些实施例中，OFDM符号作为多个簇发送。 在多个OFDM符号持续时间内，群集包括频率上的多个OFDM子载波。 每个簇包括数据以及作为信道估计的参考信号的导频信息。 在一些实施例中，多个集群共同地占用用于传输的频域中的可用子载波集合。 在本发明的一些实施例中，使用码分多路复用（CDM）在每个簇内扩展数据和/或导频。 在一些实施例中，通过在OFDM码元持续时间的其余部分上分配关于多个OFDM符号持续时间的特定数目和导频上的数据来分离导频和数据。 可以在时间和/或频率方向上执行CDM扩展。