公开(公告)号：US20120026991A1

公开(公告)日：2012-02-02

申请号：US12845515

申请日：2010-07-28

申请人： Huaning Niu ,  Qinghua Li ,  Honggang Li

发明人： Huaning Niu ,  Qinghua Li ,  Honggang Li

IPC分类号： H04W40/00 ,  H04L27/28

CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0643 ,  H04L1/0003 ,  H04L1/0027 ,  H04L1/0029 ,  H04L5/0053 ,  H04L5/0073

摘要： Embodiments of a system and method for managing feedback in a MU-MIMO system. An access point can announce one or more of mobile stations that are to receive downlink information in a first frame. The access point can also send a sounding package to the one or more mobile stations and receive feedback from the one or more mobile stations according to the feedback schedule. The feedback may be based on the reception of the sounding package.

摘要翻译： 用于管理MU-MIMO系统中的反馈的系统和方法的实施例。 接入点可以通知在第一帧中接收下行链路信息的一个或多个移动台。 接入点还可以向一个或多个移动站发送探测包，并根据反馈调度从一个或多个移动台接收反馈。 反馈可以基于发声包的接收。

公开(公告)号：US08554261B2

公开(公告)日：2013-10-08

申请号：US12845482

申请日：2010-07-28

申请人： Huaning Niu ,  Qinghua Li ,  Honggang Li

发明人： Huaning Niu ,  Qinghua Li ,  Honggang Li

IPC分类号： H04B7/00

CPC分类号： H04W52/241 ,  H04B7/0452 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L5/0046 ,  H04W52/262

摘要： Embodiments of a system and method for transmitting data from an access point in a multiple user multiple input multiple output (MU-MIMO) system are provided. A first indication of signal quality (ISQ) is received at the access point from a first station and a second ISQ is received from a second station. The access point sets a first power level and a first modulation and coding scheme (MCS) for transmission of a first aggregated media access control (MAC) protocol data unit (A-MPDU) to the first station as a function of the first ISQ and an amount of payload data corresponding to the first A-MPDU. The access point also sets a second power level and a second MCS for transmission of a second A-MPDU as a function of the second ISQ and an amount of payload data corresponding to the second A-MPDU.

摘要翻译： 提供了一种用于在多用户多输入多输出（MU-MIMO）系统中从接入点发送数据的系统和方法的实施例。 信号质量（ISQ）的第一指示在第一站的接入点处接收，并且从第二站接收第二ISQ。 接入点设置第一功率电平和第一调制和编码方案（MCS），用于作为第一ISQ的函数将第一聚合介质访问控制（MAC）协议数据单元（A-MPDU）传输到第一站，以及 与第一A-MPDU对应的有效载荷数据量。 接入点还设置第二功率电平和第二MCS，用于作为第二ISQ的函数和与第二A-MPDU对应的有效载荷数据的量的第二A-MPDU的传输。

公开(公告)号：US08446971B2

公开(公告)日：2013-05-21

申请号：US12861685

申请日：2010-08-23

申请人： Qinghua Li ,  Huaning Niu ,  Xintian E Lin ,  Yuan Zhu ,  Thomas J. Kenney ,  Eldad Perahia ,  Honggang Li

发明人： Qinghua Li ,  Huaning Niu ,  Xintian E Lin ,  Yuan Zhu ,  Thomas J. Kenney ,  Eldad Perahia ,  Honggang Li

IPC分类号： H04L27/28

CPC分类号： H04L25/03955 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0478 ,  H04B7/0482 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/066 ,  H04L2025/03414

摘要： Embodiments of a communication station and methods for efficiently providing channel feedback for MIMO communications over an OFDM channel are generally described herein. In some embodiments, receiving stations may perform a recursive differential quantization of channel information across time and/or frequency to generate quantized differential channel feedback. The quantized differential channel feedback from each receiving station may be used by a transmitting station to precode MIMO transmissions to one or more of the receiving stations. The quantized differential channel feedback may be either a quantized differential channel matrix or a quantized differential beamforming matrix.

摘要翻译： 通常在本文中描述通信站的实施例和用于在OFDM信道上有效地提供用于MIMO通信的信道反馈的方法。 在一些实施例中，接收站可以在时间和/或频率上执行信道信息的递归差分量化，以产生量化的差分信道反馈。 来自每个接收站的量化的差分信道反馈可以由发射站用于对接收站中的一个或多个的MIMO传输进行预编码。 量化的差分信道反馈可以是量化差分信道矩阵或量化差分波束形成矩阵。

公开(公告)号：US20120045003A1

公开(公告)日：2012-02-23

申请号：US12861685

申请日：2010-08-23

申请人： Qinghua Li ,  Huaning Niu ,  Xintian E. Lin ,  Yuan Zhu ,  Thomas J. Kenney ,  Eldad Perahia ,  Honggang Li

发明人： Qinghua Li ,  Huaning Niu ,  Xintian E. Lin ,  Yuan Zhu ,  Thomas J. Kenney ,  Eldad Perahia ,  Honggang Li

IPC分类号： H04L27/28

CPC分类号： H04L25/03955 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0478 ,  H04B7/0482 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/066 ,  H04L2025/03414

摘要： Embodiments of a communication station and methods for efficiently providing channel feedback for MIMO communications over an OFDM channel are generally described herein. In some embodiments, receiving stations may perform a recursive differential quantization of channel information across time and/or frequency to generate quantized differential channel feedback. The quantized differential channel feedback from each receiving station may be used by a transmitting station to precode MIMO transmissions to one or more of the receiving stations. The quantized differential channel feedback may be either a quantized differential channel matrix or a quantized differential beamforming matrix.

摘要翻译： 通常在本文中描述通信站的实施例和用于在OFDM信道上有效地提供用于MIMO通信的信道反馈的方法。 在一些实施例中，接收站可以在时间和/或频率上执行信道信息的递归差分量化，以产生量化的差分信道反馈。 来自每个接收站的量化的差分信道反馈可以由发射站用于对接收站中的一个或多个的MIMO传输进行预编码。 量化的差分信道反馈可以是量化差分信道矩阵或量化差分波束形成矩阵。

公开(公告)号：US20140038661A1

公开(公告)日：2014-02-06

申请号：US14047524

申请日：2013-10-07

申请人： Huaning Niu ,  Qinghua Li ,  Honggang Li

发明人： Huaning Niu ,  Qinghua Li ,  Honggang Li

IPC分类号： H04W52/24

CPC分类号： H04W52/241 ,  H04B7/0452 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L5/0046 ,  H04W52/262

摘要： Embodiments of a system and method for transmitting data from an access point in a multiple user multiple input multiple output (MU-MIMO) system are provided. A first indication of signal quality (ISQ) is received at the access point from a first station and a second ISQ is received from a second station. The access point sets a first power level and a first modulation and coding scheme (MCS) for transmission of a first aggregated media access control (MAC) protocol data unit (A-MPDU) to the first station as a function of the first ISQ and an amount of payload data corresponding to the first A-MPDU. The access point also sets a second power level and a second MCS for transmission of a second A-MPDU as a function of the second ISQ and an amount of payload data corresponding to the second A-MPDU.

摘要翻译： 提供了一种用于在多用户多输入多输出（MU-MIMO）系统中从接入点发送数据的系统和方法的实施例。 信号质量（ISQ）的第一指示在第一站的接入点处接收，并且从第二站接收第二ISQ。 接入点设置第一功率电平和第一调制和编码方案（MCS），用于作为第一ISQ的函数将第一聚合介质访问控制（MAC）协议数据单元（A-MPDU）传输到第一站，以及 与第一A-MPDU对应的有效载荷数据量。 接入点还设置第二功率电平和第二MCS，用于作为第二ISQ的函数和与第二A-MPDU对应的有效载荷数据的量的第二A-MPDU的传输。

公开(公告)号：US20120028671A1

公开(公告)日：2012-02-02

申请号：US12845482

申请日：2010-07-28

申请人： Huaning Niu ,  Qinghua Li ,  Honggang Li

发明人： Huaning Niu ,  Qinghua Li ,  Honggang Li

IPC分类号： H04W52/04

CPC分类号： H04W52/241 ,  H04B7/0452 ,  H04B7/0632 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L5/0046 ,  H04W52/262

摘要： Embodiments of a system and method for transmitting data from an access point in a multiple user multiple input multiple output (MU-MIMO) system are provided. A first indication of signal quality (ISQ) is received at the access point from a first station and a second ISQ is received from a second station. The access point sets a first power level and a first modulation and coding scheme (MCS) for transmission of a first aggregated media access control (MAC) protocol data unit (A-MPDU) to the first station as a function of the first ISQ and an amount of payload data corresponding to the first A-MPDU. The access point also sets a second power level and a second MCS for transmission of a second A-MPDU as a function of the second ISQ and an amount of payload data corresponding to the second A-MPDU.

摘要翻译： 提供了一种用于在多用户多输入多输出（MU-MIMO）系统中从接入点发送数据的系统和方法的实施例。 信号质量（ISQ）的第一指示在第一站的接入点处接收，并且从第二站接收第二ISQ。 接入点设置第一功率电平和第一调制和编码方案（MCS），用于作为第一ISQ的函数将第一聚合介质访问控制（MAC）协议数据单元（A-MPDU）传输到第一站，以及 与第一A-MPDU对应的有效载荷数据量。 接入点还设置第二功率电平和第二MCS，用于作为第二ISQ的函数和与第二A-MPDU对应的有效载荷数据的量的第二A-MPDU的传输。

公开(公告)号：US20140169298A1

公开(公告)日：2014-06-19

申请号：US14126035

申请日：2013-09-27

申请人： Honggang Li ,  Qinghua Li ,  Huaning Niu ,  Hujun Yin ,  Yuan Zhu

发明人： Honggang Li ,  Qinghua Li ,  Huaning Niu ,  Hujun Yin ,  Yuan Zhu

IPC分类号： H04W72/12

CPC分类号： H04B1/12 ,  H04B1/3827 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/15557 ,  H04B17/24 ,  H04B17/26 ,  H04B17/345 ,  H04J11/005 ,  H04J11/0053 ,  H04L1/0003 ,  H04L1/0054 ,  H04L1/1854 ,  H04L1/1867 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0058 ,  H04L5/0092 ,  H04L25/0202 ,  H04L25/0206 ,  H04L25/03305 ,  H04L27/0008 ,  H04W24/02 ,  H04W24/10 ,  H04W36/10 ,  H04W40/16 ,  H04W52/0261 ,  H04W52/40 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/048 ,  H04W72/0486 ,  H04W72/08 ,  H04W72/082 ,  H04W72/12 ,  H04W72/1205 ,  H04W72/121 ,  H04W72/1242 ,  H04W72/1247 ,  H04W76/14 ,  H04W76/27 ,  H04W76/28 ,  H04W84/042 ,  H04W84/18 ,  H04W92/18 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/24

摘要： A system and method for distributed scheduling of transmissions between device-to-device (D2D) communications is disclosed. The distributed scheduling method employs a distributed scheduling structure in which device identifiers rather than connection identifiers are used to enable scheduling of a D2D data transfer between devices in a wireless neighborhood. The novel distributed scheduling structure is scalable to a larger number of D2D devices than is feasible with a connection ID-based tone matrix.

摘要翻译： 公开了一种用于在设备到设备（D2D）通信之间的传输的分布式调度的系统和方法。 分布式调度方法采用分布式调度结构，其中使用设备标识符而不是连接标识符来实现在无线邻域中的设备之间的D2D数据传输的调度。 新颖的分布式调度结构可扩展到D2D设备的数量，而不是基于连接ID的音调矩阵。

公开(公告)号：US20130272262A1

公开(公告)日：2013-10-17

申请号：US13729164

申请日：2012-12-28

申请人： Qinghua Li ,  Honggang Li ,  Huaning Niu ,  Yi Hsuan ,  Yuan Zhu ,  Xiaogang Chen ,  Jong-Kae Fwu ,  Alexei Davydov ,  Hujun Yin ,  Xintian E. Lin ,  Wendy C. Wong ,  Yujian Zhang

发明人： Qinghua Li ,  Honggang Li ,  Huaning Niu ,  Yi Hsuan ,  Yuan Zhu ,  Xiaogang Chen ,  Jong-Kae Fwu ,  Alexei Davydov ,  Hujun Yin ,  Xintian E. Lin ,  Wendy C. Wong ,  Yujian Zhang

IPC分类号： H04W74/08

CPC分类号： H04W74/0808 ,  H04L5/0001 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0094 ,  H04L5/14 ,  H04L12/189 ,  H04W4/06 ,  H04W4/70 ,  H04W24/02 ,  H04W24/10 ,  H04W28/02 ,  H04W28/0268 ,  H04W28/08 ,  H04W36/0016 ,  H04W36/08 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/085 ,  H04W74/0833 ,  H04W76/10 ,  H04W76/19 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/24

摘要： A signal structure for use in D2D communications is described. In one embodiment, a preamble for automatic gain control at the receiver end is included in the transmitted signal. Techniques for scheduling of D2D transmissions using carrier sensing multiple access (CSMA) and a power control schemes for interference management are also described.

摘要翻译： 描述了用于D2D通信的信号结构。 在一个实施例中，在接收端的自动增益控制的前同步码包括在所发送的信号中。 还描述了使用载波侦听多路访问（CSMA）调度D2D传输的技术和用于干扰管理的功率控制方案。

公开(公告)号：US08547955B2

公开(公告)日：2013-10-01

申请号：US12845515

申请日：2010-07-28

申请人： Huaning Niu ,  Qinghua Li ,  Honggang Li

发明人： Huaning Niu ,  Qinghua Li ,  Honggang Li

IPC分类号： H04W24/00

CPC分类号： H04B7/0417 ,  H04B7/0452 ,  H04B7/0643 ,  H04L1/0003 ,  H04L1/0027 ,  H04L1/0029 ,  H04L5/0053 ,  H04L5/0073

摘要： Embodiments of a system and method for managing feedback in a MU-MIMO system. An access point can announce one or more of mobile stations that are to receive downlink information in a first frame. The access point can also send a sounding package to the one or more mobile stations and receive feedback from the one or more mobile stations according to the feedback schedule. The feedback may be based on the reception of the sounding package.

公开(公告)号：US20190281459A1

公开(公告)日：2019-09-12

申请号：US16424982

申请日：2019-05-29

申请人： Feng Jiang ,  Qinghua Li ,  Jonathan Segev ,  Xiaogang Chen ,  Po-Kai Huang ,  Huaning Niu

发明人： Feng Jiang ,  Qinghua Li ,  Jonathan Segev ,  Xiaogang Chen ,  Po-Kai Huang ,  Huaning Niu

IPC分类号： H04W12/06 ,  H04W72/04 ,  H04L5/00 ,  H04W24/10

摘要： This disclosure describes systems, methods, and devices related to long training field (LTF) sequence security protection. A device may determine a null data packet (NDP) frame comprising one or more fields. The device may determine a first long training field (LTF) and a second LTF, the first LTF and the second LTF being associated with a first frequency band of the NDP frame, wherein time domain LTF symbols of first LTF and the second LTF are generated using different LTF sequences. The device may determine a third LTF and a fourth LTF, the third LTF and the fourth LTF being associated with the a second frequency band of the NDP frame, wherein time domain LTF symbols of third LTF and the fourth LTF are generated using different LTF sequences. The device may cause to send the NDP frame to an initiating or a responding device. The device may cause to send a location measurement report (LMR) frame to the initiating or the responding device, wherein the LMR comprises timing information associated with the first frequency band and the second frequency band.