公开(公告)号：US20080253279A1

公开(公告)日：2008-10-16

申请号：US10593053

申请日：2005-03-15

申请人： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu ,  Claude Royer

发明人： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu ,  Claude Royer

IPC分类号： H04J11/00 ,  H04L27/28

CPC分类号： H04L27/261 ,  H04B7/06 ,  H04B7/0615 ,  H04B7/0684 ,  H04L5/0026 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0234

摘要： Pilot, preamble and midamble patterns are provided that are particularly suited for four transmit antenna OFDM systems. Pilots are inserted in a scattered manner for each of the four antennas, either uncoded, space-time coded in pairs, space-time frequency coded in pairs, or space-time-frequency coded.

摘要翻译： 提供了特别适用于四个发射天线OFDM系统的导频，前导码和中置码模式。 飞行员以四个天线中的每一个以分散的方式插入，无论是未编码，成对空时编码，成对进行时空频率编码，还是进行时空编码。

公开(公告)号：US20080219235A1

公开(公告)日：2008-09-11

申请号：US11996463

申请日：2006-07-27

申请人： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu ,  Hua Xu ,  Moussa Abdi ,  Evelyne Le Strat ,  Sarah Boumendil

发明人： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu ,  Hua Xu ,  Moussa Abdi ,  Evelyne Le Strat ,  Sarah Boumendil

IPC分类号： H04B7/208

CPC分类号： H04B7/2621 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0051

摘要： A method and system for wireless frequency division multiple access communications in the uplink and/or downlink directions, having an improved pilot insertion scheme for single carrier based communications is provided. A first time duration for transmission of a data payload block (7) is established, and the transmission is processed using a first frequency domain or a time domain. A second time duration for transmission of at least one pilot block (70) is established, and the transmission is processed using a second frequency domain or the time domain, the second time duration (70) is not greater than the first time duration (7).

摘要翻译： 提供了一种用于上行链路和/或下行链路方向上的无线频分多址通信的方法和系统，其具有用于基于单载波的通信的改进的导频插入方案。 建立用于发送数据有效载荷块（7）的第一时间段，并且使用第一频域或时域处理传输。 建立用于发送至少一个导频块（70）的第二持续时间，并且使用第二频域或时域处理该传输，第二持续时间（70）不大于第一持续时间（7） ）。

公开(公告)号：US20070053282A1

公开(公告)日：2007-03-08

申请号：US11529246

申请日：2006-09-29

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

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

IPC分类号： H04J11/00

CPC分类号： H04L27/2613 ,  H04B7/04 ,  H04B7/0413 ,  H04B7/0684 ,  H04L1/0618 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/0234 ,  H04L25/0244 ,  H04L27/2602 ,  H04L27/2627 ,  H04W52/42

摘要： Methods and apparatus are provided for inserting data symbols and pilot symbols in an OFDM (orthogonal frequency division multiplexing) transmission resource utilizing frequency hopping patterns for the data symbols and/or the pilot symbols. Data symbols and pilot symbols are allocated for down link (base station to mobile station) and up link (mobile station to bases station) transmission resources in a two-dimensional time-frequency pattern. For each antenna of a MIMO-OFDM (multiple input multiple output OFDM) communication system, pilot symbols are inserted in a scattered pattern in time-frequency and data symbols are inserted in an identical frequency-hopping pattern in time-frequency as that of other antennas.

摘要翻译： 提供了使用用于数据符号和/或导频符号的跳频图案在OFDM（正交频分复用）传输资源中插入数据符号和导频符号的方法和装置。 数据符号和导频符号以二维时频模式分配给下行链路（基站到移动台）和上行链路（移动台到基站）传输资源。 对于MIMO-OFDM（多输入多输出OFDM）通信系统的每个天线，导频符号以时间 - 频率的散射图案插入，并且数据符号以与其它信号的时间频率相同的跳频图案插入 天线。

公开(公告)号：US20060182063A1

公开(公告)日：2006-08-17

申请号：US11403469

申请日：2006-04-13

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： H04L12/56 ,  H04Q7/00 ,  H04J11/00 ,  H04L12/28

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.

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.

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

IPC分类号： H04B7/185 ,  H04W36/00

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.

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.

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

IPC分类号： H04B7/02 ,  H04L25/03 ,  H04B7/04 ,  H04B7/06

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。

公开(公告)号：US08611203B2

公开(公告)日：2013-12-17

申请号：US13456867

申请日：2012-04-26

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

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

IPC分类号： H04J11/00 ,  H04B1/00

CPC分类号： H04J11/0023 ,  H04J13/0062 ,  H04J13/22

摘要： In a wireless access network, a transmitter provides a pool of sequences having a reduced peak-to-average power ratio. Information to be transmitted is mapped to a selected at least one of the pool of sequences. The selected at least one sequence is transmitted over an orthogonal frequency division multiple access (OFDMA)-based wireless link of the wireless access network.

摘要翻译： 在无线接入网络中，发射机提供具有降低的峰值与平均功率比的序列池。 要发送的信息被映射到所选择的序列池中的至少一个。 所选择的至少一个序列通过无线接入网络的基于正交频分多址（OFDMA）的无线链路传输。

公开(公告)号：US08488728B2

公开(公告)日：2013-07-16

申请号：US13620741

申请日：2012-09-15

申请人： Mohammad Ali Maddah-Ali ,  Seyed Abolfazi Motahari ,  Amir Khandani ,  Mohammadhadi Baligh ,  Ming Jia ,  Jianglei Ma ,  Peiying Zhu ,  Wen Tong

发明人： Mohammad Ali Maddah-Ali ,  Seyed Abolfazi Motahari ,  Amir Khandani ,  Mohammadhadi Baligh ,  Ming Jia ,  Jianglei Ma ,  Peiying Zhu ,  Wen Tong

IPC分类号： H04B1/10

CPC分类号： H04L25/03343 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/0232

摘要： A method and apparatus for transmitting and receiving a wireless transmission of a plurality of data streams in a wireless communication system having a plurality of nodes is disclosed. Each node has multiple antennas. The method involves receiving first and second data streams from respective first and second nodes at a receiver node, causing the receiver node to generate a receive filter for decoding each of the received data streams, and causing the receiver node to transmit receive filter information for each of the first and second data streams, the receive filter information facilitating precoding of the first and second data streams for simultaneous transmission within a common frequency band to the receiver node.

摘要翻译： 公开了一种用于在具有多个节点的无线通信系统中发送和接收多个数据流的无线传输的方法和装置。 每个节点有多个天线。 该方法包括从接收机节点处的相应第一和第二节点接收第一和第二数据流，使得接收机节点产生用于解码每个接收到的数据流的接收滤波器，并且使得接收机节点为每个接收节点发送接收滤波器信息 所述第一和第二数据流的接收滤波器信息有助于预编码第一和第二数据流，以在共同频带内同时传输到接收机节点。