专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

51. 发明申请

US20110164491A1 METHOD AND SYSTEM FOR COMBINING OFDM AND TRANSFORMED OFDM 有权
标题翻译：用于组合OFDM和变换OFDM的方法和系统
公开(公告)号：US20110164491A1
公开(公告)日：2011-07-07
申请号：US13047259
申请日：2011-03-14
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
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。

52. 发明授权

US07929407B2 Method and system for combining OFDM and transformed OFDM 有权
标题翻译：用于组合OFDM和变换OFDM的方法和系统
公开(公告)号：US07929407B2
公开(公告)日：2011-04-19
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 , H04J1/00 , H03C7/02 , H04K1/10
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。

53. 发明申请

US20110075651A1 SYSTEMS AND METHODS FOR SC-FDMA TRANSMISSION DIVERSITY 有权
标题翻译：用于SC-FDMA传输多样性的系统和方法
公开(公告)号：US20110075651A1
公开(公告)日：2011-03-31
申请号：US12995206
申请日：2009-06-12
申请人： Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong , Hua Xu , Hang Zhang
发明人： Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong , Hua Xu , Hang Zhang
IPC分类号： H04B7/208
CPC分类号： H04L5/0058 , H04B7/0602 , H04B7/0671 , H04B7/2621 , H04J11/00 , H04L1/0003 , H04L1/0625 , H04L5/0007 , H04L5/0023 , H04L5/0044 , H04L5/0048 , H04L5/0091 , H04L27/2615 , H04L27/2626 , H04L27/2636
摘要： The present application provides methods, devices and transmitters that mitigate increases in peak to average power ratio (PAPR) from transmission diversity in a single carrier frequency division multiple access (SC-FDMA) modulated uplink A PAPR preserving precode matrix hopping method that utilizes cyclic shift delays is provided, as well as a sub-band based transmit diversity scheme. The present application also provides methods, devices and transmitters that relax the scheduling restrictions associated with uplink scheduling in the LTE standard.
摘要翻译：本申请提供了在单载波频分多址（SC-FDMA）调制上行链路PAPR保持预编码矩阵跳频方法中减轻峰均功率比（PAPR）从传输分集增加的方法，装置和发射机，其利用循环移位提供延迟，以及基于子带的发射分集方案。本申请还提供了放宽与LTE标准中的上行链路调度相关联的调度限制的方法，设备和发射机。

54. 发明授权

US07876840B2 Wireless communication methods, systems, and signal structures 有权
标题翻译：无线通信方法，系统和信号结构
公开(公告)号：US07876840B2
公开(公告)日：2011-01-25
申请号：US11639191
申请日：2006-12-15
申请人： Wen Tong , Jianglei Ma , Ming Jia , Peiying Zhu
发明人： Wen Tong , Jianglei Ma , Ming Jia , Peiying Zhu
IPC分类号： H04L27/28
CPC分类号： H04B7/0669 , H04B1/713 , H04B7/0408 , H04B7/0667 , H04B7/0697 , H04B2001/6908 , H04J11/00 , H04J13/0074 , H04J13/18 , H04L1/0003 , H04L1/0009 , H04L1/0057 , H04L1/0068 , H04L1/0069 , H04L1/0072 , H04L1/0625 , H04L1/0668 , H04L1/1812 , H04L1/1819 , H04L1/1845 , H04L1/1867 , H04L5/0023 , H04L5/0035 , H04L5/0044 , H04L5/0048 , H04L5/006 , H04L5/1469 , H04L25/0204 , H04L25/0226 , H04L25/0242 , H04L27/2602
摘要： Systems and methods for performing OFDM MIMO communications are provided. These include a frame structure; methods of combining various types of MIMO such as STTD and SM; sub-channel definitions; sub-FFT channel constructions; fast control channels; additional modulations; and group antenna transmit diversity; new incremental redundancy schemes.
摘要翻译：提供了用于执行OFDM MIMO通信的系统和方法。这些包括框架结构; 组合各种类型的MIMO（如STTD和SM）的方法; 子渠道定义; 子FFT通道结构; 快速通道; 附加调制和组天线发射分集; 新的增量冗余方案。

55. 发明授权

US07738437B2 Physical layer structures and initial access schemes in an unsynchronized communication network 有权
标题翻译：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。

56. 发明申请

US20090303918A1 ZONES FOR WIRELESS NETWORKS WITH RELAYS 有权
标题翻译：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。

57. 发明授权

US07508798B2 Virtual mimo communication system 有权
标题翻译：虚拟mimo通信系统
公开(公告)号：US07508798B2
公开(公告)日：2009-03-24
申请号：US10321999
申请日：2002-12-16
申请人： Wen Tong , Jianglei Ma , Peiying Zhu , Ming Jia , Dong-Sheng Yu
发明人： Wen Tong , Jianglei Ma , Peiying Zhu , Ming Jia , Dong-Sheng Yu
IPC分类号： H04Q11/00
CPC分类号： H04B7/0891 , H04B7/026 , H04B7/0669 , H04J13/16 , H04L1/0026 , H04L1/0618 , H04L5/0026 , H04L5/0035 , H04L5/0048 , H04L5/0094 , H04L25/0226
摘要： The present invention provides an effective way to create a virtual MIMO transmission system using mobile terminals that have only one transmit path and antenna. This is accomplished by assigning mobile terminals to a group and assigning certain shared resources and user-specific resources to those mobile terminals in the group. In a synchronized fashion, the mobile terminals will provide uplink transmission in concert, as if they were a single entity having multiple transmission paths and antennas. Preferably, the shared resources bear on how the data is transmitted, and the user-specific resources relate to pilot signals. The data transmitted may be encoded in any number of ways, and in one embodiment, the mobile terminals may relay their information to each other, such that uplink transmissions can incorporate STTD decoding or other space-time codes. The invention is applicable to virtually any multiple access technology, including OFDM, TDMA, and CDMA, preferably synchronous CDMA.
摘要翻译：本发明提供了使用仅具有一个发送路径和天线的移动终端来创建虚拟MIMO传输系统的有效方式。这通过将移动终端分配给组并且向组中的那些移动终端分配特定共享资源和用户特定资源来实现。以同步方式，移动终端将一起提供上行链路传输，好像它们是具有多个传输路径和天线的单个实体。优选地，共享资源对数据的传输方式如何，并且用户特定的资源与导频信号有关。传输的数据可以以任何数量的方式进行编码，并且在一个实施例中，移动终端可以将它们的信息彼此中继，使得上行链路传输可以包含STTD解码或其他时空码。本发明可应用于几乎任何多址接入技术，包括OFDM，TDMA和CDMA，优选地是同步CDMA。

58. 发明申请

US20090060081A1 Systems and methods for ofdm channelization 有权
标题翻译：系统和方法进行通道化
公开(公告)号：US20090060081A1
公开(公告)日：2009-03-05
申请号：US11887114
申请日：2006-03-30
申请人： Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
发明人： Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
IPC分类号： H04B7/02
CPC分类号： H04W72/0446 , H04B7/02 , H04B7/0669 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0656 , H04L1/1812 , H04L1/1887 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0041 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0226 , H04L25/0228 , H04L25/03057 , H04L27/2627 , H04L27/2655 , H04L65/1066 , H04W72/0453
摘要： Systems and methods for OFDM channelization are provided that allow for the co-existence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided, and systematic channel definition and labeling schemes are provided.
摘要翻译：提供了用于OFDM信道化的系统和方法，其允许子带信道和分集信道的共存。提供了确定分集子信道和子带子信道的方法，并提供了系统信道定义和标签方案。

59. 发明申请

US20090028258A1 Methods and systems for transmission of orthogonal frequency division multiplexed symbols 有权
标题翻译：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。

60. 发明申请

US20080186843A1 Method and System For Combining Ofdm and Transformed Ofdm 有权
标题翻译：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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式