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公开(公告)号：US20070263735A1
公开(公告)日：2007-11-15
申请号：US11547077
申请日：2005-04-04
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。
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公开(公告)号：US20070066362A1
公开(公告)日：2007-03-22
申请号：US11529223
申请日：2006-09-29
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： H04M1/00
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。
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公开(公告)号：US20070025236A1
公开(公告)日：2007-02-01
申请号：US11529245
申请日：2006-09-29
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。
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公开(公告)号：US11863400B2
公开(公告)日：2024-01-02
申请号：US17867730
申请日：2022-07-19
申请人： Jianglei Ma , Peiying Zhu , Wen Tong , Ming Jia
发明人： Jianglei Ma , Peiying Zhu , Wen Tong , Ming Jia
IPC分类号： H04L41/16 , H04L41/0823 , H04W28/06 , H04W8/04 , H04W92/10 , H04W28/26 , H04W28/18 , H04W28/02 , H04L41/0803 , H04W76/10 , H04W76/20 , H04W72/20
CPC分类号： H04L41/16 , H04L41/0803 , H04L41/0823 , H04W28/0205 , H04W28/06 , H04W28/18 , H04W28/26 , H04W72/20 , H04W76/10 , H04W76/20 , H04W92/10 , H04W8/04
摘要： Methods and devices utilizing artificial intelligence (AI) or machine learning (ML) for customization of a device specific air interface configuration in a wireless communication network are provided. An over the air information exchange to facilitate the training of one or more AI/ML modules involves the exchange of AI/ML capability information identifying whether a device supports AI/ML for optimization of the air interface.
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公开(公告)号：US11621768B2
公开(公告)日：2023-04-04
申请号：US16864922
申请日：2020-05-01
申请人： Jianglei Ma , Ming Jia , Peiying Zhu , Wen Tong
发明人： Jianglei Ma , Ming Jia , Peiying Zhu , Wen Tong
摘要： The present disclosure relates, in part, to non-terrestrial communication systems, and in some embodiments to the integration of terrestrial and non-terrestrial communication systems. Non-terrestrial communication systems can provide a more flexible communication system with extended wireless coverage range and enhanced service quality compared to conventional communication systems.
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公开(公告)号：US10277360B2
公开(公告)日：2019-04-30
申请号：US13616715
申请日：2012-09-14
申请人： Robert Novak , Hang Zhang , Sophie Vrzic , Mo-Han Fong , Kelvin Kar-Kin Au , Jianglei Ma , Peiying Zhu , Wen Tong
发明人： Robert Novak , Hang Zhang , Sophie Vrzic , Mo-Han Fong , Kelvin Kar-Kin Au , Jianglei Ma , Peiying Zhu , Wen Tong
摘要： Methods and systems are provided for allocating resources including VoIP (voice over Internet Protocol) and Non-VoIP resources. In some embodiments, multiplexing schemes are provided for use with OFDMA (orthogonal frequency division multiplexing access) systems, for example for use in transmitting VoIP traffic. In some embodiments, various HARQ (Hybrid Automatic request) techniques are provided for use with OFDMA systems. In various embodiments, there are provided methods and systems for dealing with issues such as Handling non-full rate vocoder frames, VoIP packet jitter handling, VoIP capacity increasing schemes, persistent and non-persistent assignment of resources in OFDMA systems.
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公开(公告)号：US09867200B2
公开(公告)日：2018-01-09
申请号：US13619359
申请日：2012-09-14
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： H04L12/28 , H04W72/06 , H04B7/26 , H04L5/00 , H04L27/26 , H04L25/02 , H04L25/03 , H04W16/26 , H04W52/34 , H04W84/04
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 one 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.
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公开(公告)号：US09806785B2
公开(公告)日：2017-10-31
申请号：US12226736
申请日：2007-04-19
申请人： Jianglei Ma , Ming Jia , Jianming Wu , Peiying Zhu , Wen Tong , Evelyne Le Strat , Sarah Boumendil , Moussa Abdi
发明人： Jianglei Ma , Ming Jia , Jianming Wu , Peiying Zhu , Wen Tong , Evelyne Le Strat , Sarah Boumendil , Moussa Abdi
IPC分类号： H04B7/06 , H04B7/0452
CPC分类号： H04B7/0689 , H04B7/0452 , H04B7/061 , H04B7/068 , H04B7/0697
摘要： Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.
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公开(公告)号：US09325538B2
公开(公告)日：2016-04-26
申请号：US12339568
申请日：2008-12-19
申请人： Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong
发明人： Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong
CPC分类号： H04B7/0456 , H04B7/0417 , H04B7/0465 , H04B7/063 , H04L25/03343
摘要： 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.
摘要翻译： 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。
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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
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。
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