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    • 91. 发明申请
    • Methods of radio communication involving multiple radio channels, and radio signal repeater and mobile station apparatuses implementing same
    • 涉及多个无线信道的无线通信方法,实现无线信道的无线信号中继器和移动台装置
    • US20110134772A1
    • 2011-06-09
    • US12923519
    • 2010-09-24
    • Hang ZhangWen TongJianglei MaPeiying ZhuMing Jia
    • Hang ZhangWen TongJianglei MaPeiying ZhuMing Jia
    • H04W40/00H04J4/00H04W24/00
    • H04W84/047H04B7/15542H04B7/2606
    • A method of facilitating radio communications involves receiving a first message from a first remote radio station on a first radio channel, transmitting the first message to a second remote radio station on a second radio channel, receiving a second message from the second remote radio station on a third radio channel, and transmitting the second message to the first remote radio station on a fourth radio channel. A method of radio communication involves receiving a first radio signal from a first remote radio station on a first radio channel, transmitting a second radio signal to the first remote radio station on a second radio channel, receiving a third radio signal from a second remote radio station on a third radio channel, and transmitting a fourth radio signal to the second remote radio station on a fourth radio channel. Radio signal repeater and mobile station apparatuses are also disclosed.
    • 一种促进无线电通信的方法涉及在第一无线电信道上从第一远程无线电站接收第一消息,在第二无线电信道上将第一消息发送到第二远程无线电台,从第二远程无线电台接收第二消息, 第三无线电信道,并且在第四无线电信道上将所述第二消息发送到所述第一远程无线电台。 无线电通信的方法涉及在第一无线电信道上从第一远程无线电站接收第一无线电信号,在第二无线电信道上向第一远程无线电台发送第二无线电信号,从第二无线电信道接收第三无线电信号 并且在第四无线电信道上向第二远程无线电台发送第四无线电信号。 还公开了无线电信号中继器和移动站装置。
    • 94. 发明申请
    • PHYSICAL LAYER STRUCTURES AND INITIAL ACCESS SCHEMES IN AN UNSYNCHRONIZED COMMUNICATION NETWORK
    • 不间断通信网络中的物理层结构和初始访问方案
    • US20100226334A1
    • 2010-09-09
    • US12780336
    • 2010-05-14
    • Jianglei MaMing JiaPeiying ZhuWen Tong
    • Jianglei MaMing JiaPeiying ZhuWen Tong
    • H04W72/04
    • H04L5/0048H04B2201/70701H04J11/0069H04L5/0007H04L25/0224H04L27/2655H04W74/00
    • Physical layer structures and related access schemes for unsynchronized communication networks are provided. Access channel information, preferably including a common synchronization code associated with all transceiver stations in a communication network and a cell-specific synchronization code uniquely associated with one of the transceiver stations, is modulated onto at least one set of time-continuous signal components of a communication signal. In order to access the communication network, communication terminals search for the access channel information in one or more sets of time-continuous signal components and synchronization parameters are then determined based on a location of the access channel information in the sets of time-continuous signal components. Some embodiments of the invention provide for joint frame synchronization and coarse timing synchronization. In further embodiments, the communication signal also includes a scattered pilot channel onto which a portion of the access channel information, preferably the cell-specific synchronization code, is modulated. The pilot channels may then be re-used for initial access operations in addition to its conventional uses for such operations as channel estimation.
    • 提供了用于非同步通信网络的物理层结构和相关访问方案。 优选地包括与通信网络中的所有收发机站相关联的公共同步码和与这些收发信机之一唯一相关联的小区特定同步码的接入信道信息被调制到至少一组时间连续信号分量 通信信号。 为了访问通信网络,通信终端在一组或多组时间连续信号分量中搜索接入信道信息,然后基于时间连续信号组中的接入信道信息的位置来确定同步参数 组件。 本发明的一些实施例提供了联合帧同步和粗略定时同步。 在另外的实施例中,通信信号还包括一个分散的导频信道,一个部分接入信道信息,最好是小区特定的同步码被调制到该导频信道上。 然后,除了用于诸如信道估计之类的操作的常规用途之外,导频信道可以被重新用于初始接入操作。
    • 95. 发明授权
    • Method and apparatus for channel quality measurements
    • 用于信道质量测量的方法和装置
    • US07773699B2
    • 2010-08-10
    • US10038916
    • 2002-01-08
    • Ming JiaJianglei MaPeiying ZhuDong-Sheng YuWen Tong
    • Ming JiaJianglei MaPeiying ZhuDong-Sheng YuWen Tong
    • H03D1/00H04L27/06
    • H04L1/0631H04L1/0003H04L1/0009H04L1/0036H04L1/208H04L5/0023H04L5/0048H04L5/0053H04L25/0226H04L25/0236H04L25/03318H04L25/067
    • A method and apparatus are provided for combining pilot symbols and Transmit Parameter Signalling (TPS) channels within an OFDM frame. The method uses Differential Space-Time Block Coding to encode a fast signalling message at an OFDM transmitter. At an OFDM receiver, the encoded fast signalling message can be decoded using differential feedback to recover information about the channel responses that would normally be carried by pilot symbols. In wireless data transmission employing adaptive modulation and coding, an instantaneous channel quality measurement, independent of the origin of interference for example, neighboring-cell interference, white thermal noise, or residual Doppler shift is provided. Using the correlation between a signal which has been symbol de-mapped, and one which has also been soft decoded and re-encoded, a channel quality indicator is produced. Another embodiment uses TPS data as pilot symbols by decoding TPS and then re-encoding.
    • 提供了一种在OFDM帧内组合导频符号和发射参数信令(TPS)信道的方法和装置。 该方法使用差分空时块编码来在OFDM发射机处对快速信令消息进行编码。 在OFDM接收机处,可以使用差分反馈对编码的快速信令消息进行解码,以恢复通常由导频符号携带的信道响应的信息。 在采用自适应调制和编码的无线数据传输中,提供了独立于干扰起源的瞬时信道质量测量,例如相邻小区干扰,白热噪声或残余多普勒频移。 使用已被符号解映射的信号与也被软解码和重新编码的信号之间的相关性,产生信道质量指示符。 另一实施例通过解码TPS然后重新编码来使用TPS数据作为导频符号。
    • 96. 发明申请
    • PRECODING IN HIGH-ORDER MIMO
    • 高阶MIMO中的预测
    • US20100002801A1
    • 2010-01-07
    • US12339568
    • 2008-12-19
    • Ming JiaJianglei MaPeiying ZhuWen Tong
    • Ming JiaJianglei MaPeiying ZhuWen Tong
    • H04L25/03
    • H04B7/0456H04B7/0417H04B7/0465H04B7/063H04L25/03343
    • A high-order Multiple-Input-Multiple-Output (MIMO) transmitter implementing a covariance-based precoding scheme that exploits transmit channel correlation and a method of operation thereof are provided. In one embodiment, covariance-based precoding is performed at the high-order MIMO transmitter based on feedback from a remote high-order MIMO receiver regarding a covariance-based precoding matrix. The covariance-based precoding matrix is, or is derived from, a transmit channel correlation matrix determined by the high-order MIMO receiver for the high-order MIMO transmitter. The covariance-based precoding provides a beam-forming effect when there is a relatively high degree of transmit channel correlation, thereby improving performance of the high-order MIMO transmitter. Further, because changes in the transmit channel correlation occur relatively slowly over time, feedback overhead requirements are substantially reduced as compared to that required for traditional MIMO precoding schemes.
    • 提供了实现利用发射信道相关的协方差预编码方案的高阶多输入多输出(MIMO)发射机及其操作方法。 在一个实施例中,基于基于协方差的预编码矩阵的来自远程高阶MIMO接收机的反馈在高阶MIMO发射机处执行基于协方差的预编码。 基于协方差的预编码矩阵是由或由高阶MIMO发射机的高阶MIMO接收机确定的发射信道相关矩阵导出的。 当存在相对较高程度的发射信道相关性时,基于协方差的预编码提供波束形成效应,从而提高高阶MIMO发射机的性能。 此外,由于与传统MIMO预编码方案相比,发射信道相关性的变化随时间发生相对较慢,所以反馈开销要求显着降低。
    • 98. 发明申请
    • CLOSED-LOOP MIMO SYSTEMS AND METHODS
    • 闭环MIMO系统和方法
    • US20090219838A1
    • 2009-09-03
    • US12293362
    • 2007-03-19
    • Ming JiaJianglei MaWen TongPeiying Zhu
    • Ming JiaJianglei MaWen TongPeiying Zhu
    • H04B7/005H04B7/02H04K1/10H04L1/02
    • H04L5/0048H04B7/0417H04B7/0456H04B7/0634H04B7/0639H04L5/14H04L25/0204H04L25/0224H04L25/0242H04L25/03343H04L27/2601H04L27/2613H04L2025/03426H04L2025/03802
    • Methods, devices and systems are provided for transmitting and receiving MIMO signals. 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. Receiving of the MIMO signals involves receiving a MIMO signal containing data symbols pre-coded with a codeword. The MIMO signal includes pilots, and including at least one beacon pilot vector containing contents known to a receiver/each beacon pilot vector containing one symbol from each transmit antenna. Processing is performed on the at least one beacon pilot vector to determine which codeword was used to pre-code the data symbols.
    • 提供了发送和接收MIMO信号的方法,设备和系统。 MIMO信号的发送涉及使用相应的预编码码字预编码至少两个数据符号中的每一个,以排除对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 。 接收MIMO信号涉及接收包含用码字预编码的数据符号的MIMO信号。 MIMO信号包括导频,并且包括至少一个信标导频向量,其包含每个发射天线包含一个符号的接收机/每个信标导频向量已知的内容。 对至少一个信标导频向量执行处理,以确定哪个码字用于对数据符号进行预编码。