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1. 发明授权

US08526400B2 Radio access system and method using OFDM and CDMA for broadband data transmission 有权
标题翻译：使用OFDM和CDMA进行宽带数据传输的无线接入系统和方法
公开(公告)号：US08526400B2
公开(公告)日：2013-09-03
申请号：US11816370
申请日：2006-02-15
申请人： Wen Tong , Jianglei Ma , Hang Zhang , Mo-Han Fong , Ming Jia , Peiying Zhu , Geng Wu , Jun Li , Dong-Sheng Yu
发明人： Wen Tong , Jianglei Ma , Hang Zhang , Mo-Han Fong , Ming Jia , Peiying Zhu , Geng Wu , Jun Li , Dong-Sheng Yu
IPC分类号： H04B7/216
CPC分类号： H04W88/06 , H04B1/707 , H04J11/0093 , H04L5/001 , H04L5/0023 , H04L5/0035 , H04L5/0044 , H04L5/0048 , H04L5/0087 , H04L25/0204 , H04L25/0226 , H04W28/10 , H04W88/10
摘要： A method and system for wireless data communication using a first wireless communication technology and a second wireless communication technology. The second wireless communication technology being different from the first wireless communication technology. A transmitter is arranged to transmit data using frame structures based on the first wireless communication technology and the second wireless communication technology in which the frame structure based on the second wireless communication technology has a timing structure, MAC and pilot that are also used with the frame structure of the first wireless communication technology. The transmitter is arranged to selectively change transmission on a frame by frame basis between the first wireless communication technology and the second wireless communication technology.
摘要翻译：一种使用第一无线通信技术和第二无线通信技术进行无线数据通信的方法和系统。第二无线通信技术与第一无线通信技术不同。发射机被布置为使用基于第一无线通信技术的帧结构和基于第二无线通信技术的帧结构具有定时结构的第二无线通信技术来发送数据，也与帧一起使用的MAC和导频第一种无线通信技术的结构。发射机被布置为在第一无线通信技术和第二无线通信技术之间逐帧地选择性地改变传输。

2. 发明授权

US08170155B2 Method and apparatus for channel quality measurements 有权
标题翻译：用于信道质量测量的方法和装置
公开(公告)号：US08170155B2
公开(公告)日：2012-05-01
申请号：US12839836
申请日：2010-07-20
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 are provided for measuring channel quality over which has been transmitted a sequence of symbols produced by encoding and constellation mapping a source data element sequence. The method includes receiving a sequence of received symbols over the channel whose quality is to be measured. 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 method also includes decoding the de-mapped symbols to produce a decoded output sequence. In some embodiments, the decoding may be based on the first channel quality indicator. The method also includes re-encoding the decoded output sequence to produce a re-encoded output sequence. The method also includes correlating the de-mapped symbols 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. In some embodiments, the transmitter may adaptively select a type of encoding based on the second channel quality indicator.
摘要翻译：提供了一种用于测量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的信道质量的方法和装置。该方法包括在其质量要被测量的信道上接收接收到的符号序列。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。该方法还包括对解映射符号进行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。该方法还包括对解码的输出序列进行重新编码以产生重新编码的输出序列。该方法还包括将去映射符号与重新编码的输出序列相关联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。在一些实施例中，发射机可以基于第二信道质量指示符自适应地选择一种类型的编码。

3. 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。

4. 发明授权

US07394860B2 Combined space-time decoding 有权
标题翻译：组合时空解码
公开(公告)号：US07394860B2
公开(公告)日：2008-07-01
申请号：US10263268
申请日：2002-10-02
申请人： Wen Tong , Ming Jia , Jianglei Ma , Peiying Zhu , Dong-Sheng Yu
发明人： Wen Tong , Ming Jia , Jianglei Ma , Peiying Zhu , Dong-Sheng Yu
IPC分类号： H04B7/02 , H04L1/02
CPC分类号： H04L1/0618
摘要： The present invention relates to decoding space time coded (STC) signals transmitted from a number of transmit antennas. First, a separate detection technique is used to determine initial decoding solutions corresponding to the symbols transmitted from each of a number of transmit antennas at a given time. For each initial solution, a limited area about the initial solution is defined. Each of the limited areas will correspond to regions including constellation points proximate the initial solution. The initial solutions are used to define a limited, multi-dimensional space. Accordingly, the initial solutions are used to reduce the search complexity associated with joint decoding by defining a limited space about the initial solutions. Finally, a joint decoding technique is implemented within the limited space to find a final solution.
摘要翻译：本发明涉及解码从多个发射天线发射的空时编码（STC）信号。首先，使用单独的检测技术来确定在给定时间从与多个发射天线中的每一个发送的符号相对应的初始解码解。对于每个初始解决方案，定义关于初始解决方案的有限区域。每个有限区域将对应于包括邻近初始解决方案的星座点的区域。初始解决方案用于定义有限的多维空间。因此，初始解决方案用于通过定义关于初始解决方案的有限空间来减少与联合解码相关联的搜索复杂度。最后，在有限的空间内实现联合解码技术，找到最终解决方案。

5. 发明授权

US09271221B2 Closed loop MIMO systems and methods 有权
标题翻译：闭环MIMO系统和方法
公开(公告)号：US09271221B2
公开(公告)日：2016-02-23
申请号：US11630391
申请日：2005-06-22
申请人： Wen Tong , Ming Jia , Jianglei Ma , Peiying Zhu , Hua Xu , Dong-Sheng Yu , Hang Zhang , Mo-Han Fong
发明人： Wen Tong , Ming Jia , Jianglei Ma , Peiying Zhu , Hua Xu , Dong-Sheng Yu , Hang Zhang , Mo-Han Fong
IPC分类号： H04B7/185 , H04W48/08 , H04B7/06 , H04L5/00 , H04W72/04
CPC分类号： H04B7/0478 , H04B7/0413 , H04B7/0617 , H04B7/0619 , H04B7/0671 , H04B7/0673 , H04B7/0691 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L5/005 , H04L5/006 , H04L5/023 , H04L27/2601 , H04W48/08 , H04W72/042 , H04W72/044 , H04W72/08 , H04W74/06
摘要： Systems and methods for closed loop MIMO (multiple input and multiple output) wireless communication are provided. Various transmit formats including spatial multiplexing and STTD are defined in which vector or matrix weighting is employed using information fed back from receivers. The feedback information may include channel matrix or SVD-based feedback.
摘要翻译：提供了闭环MIMO（多输入和多输出）无线通信的系统和方法。定义了包括空间复用和STTD在内的各种发送格式，其中使用从接收机反馈的信息的向量或矩阵加权。反馈信息可以包括信道矩阵或基于SVD的反馈。

6. 发明申请

US20110096751A1 SOFT HANDOFF FOR OFDM 有权
标题翻译： OFDM的软切换
公开(公告)号：US20110096751A1
公开(公告)日：2011-04-28
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： H04W36/00 , H04J11/00
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。

7. 发明申请

US20090213948A1 ADAPTIVE TWO-DIMENSIONAL CHANNEL INTERPOLATION 有权
标题翻译：自适应二维通道插值
公开(公告)号：US20090213948A1
公开(公告)日：2009-08-27
申请号：US12064566
申请日：2006-08-22
申请人： Jianglei Ma , Ming Jia , Hua Xu , Wen Tong , Peiying Zhu , Dong-Sheng Yu , Hang Zhang
发明人： Jianglei Ma , Ming Jia , Hua Xu , Wen Tong , Peiying Zhu , Dong-Sheng Yu , Hang Zhang
IPC分类号： H04J11/00 , H04L27/00 , H04L27/28
CPC分类号： H04L27/2611 , H04B7/06 , H04B7/08 , H04L5/0007 , H04L5/0023 , H04L25/0226 , H04L25/0232 , H04L27/2626 , H04L27/2647
摘要： A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
摘要翻译：一种用于改善OFDM通信系统内的信道估计的方法和装置。 OFDM中的信道估计通常借助于导频符号来执行。导频符号通常在时间和频率上间隔开。将导频符号插入的频率和时间的集合称为导频模式。在一些情况下，导频图案是对角线形格子，规则的或不规则的。该方法首先在较大相干性（时间或频率）的方向内插。使用这些测量，导频符号在更快变化方向上的密度将增加，从而改善信道估计而不增加开销。因此，第一内插步骤的结果然后可以用于辅助尺寸较小的相干性（时间或频率）的内插。

8. 发明申请

US20090103494A1 SOFT HANDOFF FOR OFDM 有权
标题翻译： OFDM的软切换
公开(公告)号：US20090103494A1
公开(公告)日：2009-04-23
申请号：US12343866
申请日：2008-12-24
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： H04W36/00
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。

9. 发明授权

US07042858B1 Soft handoff for OFDM 有权
公开(公告)号：US07042858B1
公开(公告)日：2006-05-09
申请号：US10104399
申请日：2002-03-22
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： H04Q7/00
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.

10. 发明授权

US08588326B2 System and method for mapping symbols for MIMO transmission 有权
标题翻译：用于映射MIMO传输符号的系统和方法
公开(公告)号：US08588326B2
公开(公告)日：2013-11-19
申请号：US11631842
申请日：2005-07-07
申请人： Mahmoud Taherzadehboroujeni , Hosein Nikopourdeilami , Amir Keyvan Khandani , Wen Tong , Ming Jia , Peiying Zhu , Dong-Sheng Yu , Jianglei Ma
发明人： Mahmoud Taherzadehboroujeni , Hosein Nikopourdeilami , Amir Keyvan Khandani , Wen Tong , Ming Jia , Peiying Zhu , Dong-Sheng Yu , Jianglei Ma
IPC分类号： H04B7/24 , H04B7/00 , H04L27/00 , H04L27/04
CPC分类号： H04B7/0669 , H04B7/0413 , H04B7/06 , H04B7/0697 , H04B7/0891 , H04L1/0606 , H04L1/0625 , H04L1/0643 , H04L1/0668 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L27/2626
摘要： Methods and devices are provided for MIMO OFDM transmitter and receivers having odd and/even numbers of transmit antennas. Various methods for pre-coding information bits before space time coding (STC) are described for enabling transmission of information bits over all antennas. Methods of decoding received signals that have been pre-coded and STC coded are also provided by embodiments of the invention. Pilot patterns for downlink and uplink transmission between a base station and one or more wireless terminals for three transmit antenna transmitters are also provided. Variable rate codes are provided that combine various fixed rate codes in a manner that results in codes whose rates are dependent on all the various fixed rate codes that are combined.
摘要翻译：为具有奇数和偶数个发射天线的MIMO OFDM发射机和接收机提供了方法和设备。描述了用于在空间时间编码（STC）之前预编码信息比特的各种方法，以使得能够在所有天线上传输信息比特。对已经被预编码和STC编码的接收信号进行解码的方法也由本发明的实施例提供。还提供了用于三个发射天线发射机的基站与一个或多个无线终端之间的下行链路和上行链路传输的导频模式。提供了可变速率代码，其以导致其速率取决于组合的所有各种固定速率代码的代码的方式组合各种固定速率代码。

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