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    Physical layer structures and initial access schemes in an unsynchronized communication network
    53.
    发明授权
    Physical layer structures and initial access schemes in an unsynchronized communication network 有权
    物理层结构和不同步通信网络中的初始访问方案

    公开(公告)号：US07738437B2

    公开(公告)日：2010-06-15

    申请号：US10760424

    申请日：2004-01-21

    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： H04B7/216 ,  H04B1/00 ,  H04J11/00

    CPC分类号： H04L5/0048 ,  H04B2201/70701 ,  H04J11/0069 ,  H04L5/0007 ,  H04L25/0224 ,  H04L27/2655 ,  H04W74/00

    摘要： 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.

    摘要翻译： 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。

    ZONES FOR WIRELESS NETWORKS WITH RELAYS
    54.
    发明申请
    ZONES FOR WIRELESS NETWORKS WITH RELAYS 有权
    无线网络连接区域

    公开(公告)号：US20090303918A1

    公开(公告)日：2009-12-10

    申请号：US12093202

    申请日：2006-11-10

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

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

    IPC分类号： H04B7/14 ,  H04W4/00

    CPC分类号： H04W72/06 ,  H04B7/2606 ,  H04B7/2615 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2655 ,  H04W16/26 ,  H04W52/34 ,  H04W84/047

    摘要： Methods and systems are provided for use with wireless networks having once or more cell in which each cell includes a base station (BS), at least one relay station (RS) and at least one mobile station (MS). The at least one relay station can be used as an intermediate station for providing communication between the BS and MS. Methods are provided for an RS to initially access the network, access of the RS by MSs initially accessing the network, methods of allocating OFDM resources for communicating between the BS, RS and/or MS for example dividing transmission resources into uplink and downlink transmissions, and methods of inserting pilot symbols into transmission resources used by the RS. In some embodiments on the invention, the methods are consistent and/or can be used in conjunction with existing standards such as 802.16e.

    摘要翻译： 方法和系统被提供用于具有一个或多个小区的无线网络，其中每个小区包括基站（BS），至少一个中继站（RS）和至少一个移动台（MS）。 所述至少一个中继站可以用作在BS和MS之间提供通信的中间站。 提供了用于RS初始接入网络的方法，初始访问网络的MS接入RS的方法，用于分配用于BS，RS和/或MS之间通信的OFDM资源的方法，例如将传输资源划分为上行链路和下行链路传输， 以及将导频符号插入到由RS使用的传输资源中的方法。 在本发明的一些实施例中，所述方法是一致的和/或可以与诸如802.16e的现有标准结合使用。

    Methods and systems for transmission of orthogonal frequency division multiplexed symbols
    55.
    发明申请
    Methods and systems for transmission of orthogonal frequency division multiplexed symbols 有权
    用于传输正交频分复用符号的方法和系统

    公开(公告)号：US20090028258A1

    公开(公告)日：2009-01-29

    申请号：US11887115

    申请日：2006-03-30

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

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

    IPC分类号： H04L27/28

    CPC分类号： H04L27/2602 ,  H04L1/0003 ,  H04L1/0009 ,  H04L27/2655

    摘要： In some embodiments of the present invention there is provided a frame structure for transmitting an integer number of OFDM symbols in which some of the OFDM symbols are to be transmitted in a unicast format and some of the OFDM symbols are to be transmitted in a broadcast format. The frame structure includes partitioning of a frame into at least two portions to accommodate both unicast and broadcast modes in the frame. The frame structure is used for transmitting multiple frames in a serial manner from at least one transmitter. The unicast mode supports transmission of OFDM symbols from a single transmitter to a single receiver. The broadcast mode supports transmission of OFDM symbols from multiple transmitters to all receivers within range of the multiple transmitters. The multicast mode supports transmission of OFDM symbols from multiple transmitters to multiple receivers within range of the multiple transmitters.

    摘要翻译： 在本发明的一些实施例中，提供了一种用于发送整数个OFDM符号的帧结构，其中一些OFDM符号将以单播格式发送，并且一些OFDM符号将以广播格式发送 。 帧结构包括将帧划分成至少两个部分以适应帧中的单播和广播模式。 帧结构用于从至少一个发射机以串行方式发送多个帧。 单播模式支持将OFDM符号从单个发射机传输到单个接收机。 广播模式支持从多个发射机向多个发射机的范围内的所有接收机传输OFDM符号。 组播模式支持将多个发射机的OFDM符号从多个发射机的范围内传输到多个接收机。

    Method and System For Combining Ofdm and Transformed Ofdm
    56.
    发明申请
    Method and System For Combining Ofdm and Transformed Ofdm 有权
    结合Ofdm和变换的方法和系统

    公开(公告)号：US20080186843A1

    公开(公告)日：2008-08-07

    申请号：US11909567

    申请日：2006-03-30

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

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

    IPC分类号： H04J11/00 ,  H04L27/26 ,  H04J15/00

    CPC分类号： H04L27/263 ,  H04L1/0003 ,  H04L1/0009 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0096 ,  H04L27/2613 ,  H04L27/2628 ,  H04L27/2634 ,  H04L27/2646

    摘要： Methods and systems are provided that enable an OFDM transmitter to be used for transmitting conventional OFDM or a form of transformed OFDM. A technique is provided for transforming a coded and modulated sequence of samples prior to an IFFT that enables the transformed sequence of samples to be transmitted using conventional OFDM or transformed OFDM. The selection of a transform function for transforming the coded and modulated sequence of samples may be based on optimizing the transform function for particular operating conditions between the transmitter and receiver. In some embodiments of the invention OFDM and time transformed OFDM are multiplexed in time and/or frequency in a transmission frame. In some embodiments of the invention a pilot pattern is provided in which the pilot are sent using OFDM and data is sent using OFDM and/or transformed OFDM.

    摘要翻译： 提供了使OFDM发射机能够用于传输常规OFDM或变换OFDM形式的方法和系统。 提供了一种用于在IFFT之前变换样本的编码和调制序列的技术，其使得能够使用常规OFDM或变换OFDM来发送变换的样本序列。 用于变换样本的编码和调制序列的变换函数的选择可以基于优化发射机和接收机之间的特定操作条件的变换函数。 在本发明的一些实施例中，OFDM和时变OFDM在传输帧中以时间和/或频率被复用。 在本发明的一些实施例中，提供了导频模式，其中使用OFDM发送导频，并且使用OFDM和/或经变换的OFDM发送数据。