公开(公告)号：US07492749B2

公开(公告)日：2009-02-17

申请号：US10849101

申请日：2004-05-19

申请人： Jian Song ,  Khalid Karimullah

发明人： Jian Song ,  Khalid Karimullah

IPC分类号： H04B7/216

CPC分类号： H04B7/0626 ,  H04B7/04 ,  H04B7/0691 ,  H04B7/0851 ,  H04B7/0862 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04W52/34

摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.

摘要翻译： 提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。 帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈 信息。 集线器从终端接收反馈信息。 集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

公开(公告)号：US20120294266A1

公开(公告)日：2012-11-22

申请号：US13566701

申请日：2012-08-03

申请人： Jian Song ,  Khalid Karimullah

发明人： Jian Song ,  Khalid Karimullah

IPC分类号： H04W72/04 ,  H04W52/04

CPC分类号： H04B7/0626 ,  H04B7/04 ,  H04B7/0691 ,  H04B7/0851 ,  H04B7/0862 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04W52/34

摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.

摘要翻译： 提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。 帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈 信息。 集线器从终端接收反馈信息。 集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

公开(公告)号：US08243706B2

公开(公告)日：2012-08-14

申请号：US12363455

申请日：2009-01-30

申请人： Jian Song ,  Khalid Karimullah

发明人： Jian Song ,  Khalid Karimullah

IPC分类号： H04B7/216

CPC分类号： H04B7/0626 ,  H04B7/04 ,  H04B7/0691 ,  H04B7/0851 ,  H04B7/0862 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04W52/34

摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.

摘要翻译： 提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。 帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈 信息。 集线器从终端接收反馈信息。 集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

公开(公告)号：US08902840B2

公开(公告)日：2014-12-02

申请号：US13566701

申请日：2012-08-03

申请人： Jian Song ,  Khalid Karimullah

发明人： Jian Song ,  Khalid Karimullah

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04W52/34 ,  H04B7/06 ,  H04B7/08 ,  H04B7/04

CPC分类号： H04B7/0626 ,  H04B7/04 ,  H04B7/0691 ,  H04B7/0851 ,  H04B7/0862 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04W52/34

摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.

摘要翻译： 提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。 帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈 信息。 集线器从终端接收反馈信息。 集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

公开(公告)号：US06351240B1

公开(公告)日：2002-02-26

申请号：US09664695

申请日：2000-09-19

申请人： Khalid Karimullah ,  Jian Song ,  Lin-Nan Lee ,  Stanley E. Kay

发明人： Khalid Karimullah ,  Jian Song ,  Lin-Nan Lee ,  Stanley E. Kay

IPC分类号： H01Q138

CPC分类号： H01Q9/0428 ,  H01Q3/38 ,  H01Q3/46 ,  H01Q9/0421

摘要： An approach for electronically performing beam steering is disclosed. For electronic scanning, an n-bit quantized phase shifting approach is employed at each array element of a phased array antenna. By applying an initial phase bias, either deterministically or randomly, in each of the array elements, the performance of a phased array with n-bit quantization (even with n=2) approaches the performance of a system with no quantization. This approach can be used with linearly polarized or circularly polarized waves. For circularly polarized waves, the 2n phase shifts required of n-bit quantization are achieved in a manner that provides a simple, low-loss construction, which allows production of a low-cost reflectarray or a flat-plate lens.

摘要翻译： 公开了一种用于电子执行光束转向的方法。 对于电子扫描，在相控阵天线的每个阵列元件处采用n位量化相移方法。 通过在每个阵列元件中确定地或随机地施加初始相位偏置，具有n位量化（即使n = 2）的相控阵列的性能接近没有量化的系统的性能。 这种方法可以用于线偏振或圆偏振波。 对于圆偏振波，n位量化所需的2n相移实现为提供简单的低损耗结构，这允许生产低成本反射阵列或平板透镜。

公开(公告)号：US20090168916A1

公开(公告)日：2009-07-02

申请号：US12363455

申请日：2009-01-30

申请人： Jian Song ,  Khalid Karimullah

发明人： Jian Song ,  Khalid Karimullah

IPC分类号： H04B7/02

CPC分类号： H04B7/0626 ,  H04B7/04 ,  H04B7/0691 ,  H04B7/0851 ,  H04B7/0862 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04W52/34

摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.

摘要翻译： 提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。 帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈 信息。 集线器从终端接收反馈信息。 集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

公开(公告)号：US20050259627A1

公开(公告)日：2005-11-24

申请号：US10849101

申请日：2004-05-19

申请人： Jian Song ,  Khalid Karimullah

发明人： Jian Song ,  Khalid Karimullah

IPC分类号： H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04B7/216

CPC分类号： H04B7/0626 ,  H04B7/04 ,  H04B7/0691 ,  H04B7/0851 ,  H04B7/0862 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/006 ,  H04W52/34

摘要： An approach is provided for supporting transmission in a multi-input-multi-output (MIMO) communication system including a plurality of terminals. A preamble portion of a frame is transmitted by a multiple transmit antennas of a hub using Orthogonal Frequency Division Multiplexing (OFDM) to the terminals over a channel, wherein each of the terminals determines a characteristic of the channel with respect to the transmit antennas as feedback information. The hub receives the feedback information from the terminals. The hub selects, according to the feedback information, a subset of the antennas for transmission of a remaining portion of the frame to the terminal.

摘要翻译： 提供了一种用于在包括多个终端的多输入多输出（MIMO）通信系统中支持传输的方法。 帧的前导部分通过使用正交频分复用（OFDM）的集线器的多个发射天线通过信道发送到终端，其中每个终端相对于发射天线确定信道的特性作为反馈 信息。 集线器从终端接收反馈信息。 集线器根据反馈信息选择用于将帧的剩余部分传输到终端的天线的子集。

公开(公告)号：US20120314577A1

公开(公告)日：2012-12-13

申请号：US13589890

申请日：2012-08-20

申请人： Tuanhui Sun ,  Defeng Li ,  Hao Su ,  Aijuan Cao ,  Jian Song

发明人： Tuanhui Sun ,  Defeng Li ,  Hao Su ,  Aijuan Cao ,  Jian Song

IPC分类号： H04L12/56

CPC分类号： H04L47/12 ,  H04L47/26 ,  H04L49/3027 ,  H04L49/506 ,  H04L49/552

摘要： A method for implementing flow control in a switch fabric includes: sending, by each input port, request information to a destination output port where no packet congestion occurs; according to respective back pressure information, determining, by the destination output port which receives the request information, whether to return grant information to each input port to establish a matching relationship between each input port and the destination output port which returns the grant information; according to the matching relationship, scheduling, by each input port, a cell to a destination output port that is matched with each input port. Through the embodiments of the present invention, quantity of information transmitted between an input port and an output port is reduced, the design of the switch fabric is simplified, and data processing efficiency in the switch fabric is improved.

摘要翻译： 一种用于在交换结构中实现流控制的方法，包括：通过每个输入端口将请求信息发送到不发生分组拥塞的目的地输出端口; 根据相应的背压信息，通过接收请求信息的目的地输出端口确定是否向每个输入端口返回授权信息，以建立返回授权信息的每个输入端口和目的地输出端口之间的匹配关系; 根据匹配关系，通过每个输入端口将单元调度到与每个输入端口匹配的目的地输出端口。 通过本发明的实施例，减少了在输入端口和输出端口之间传输的信息量，简化了交换结构的设计，提高了交换结构的数据处理效率。

公开(公告)号：US07669063B2

公开(公告)日：2010-02-23

申请号：US11424319

申请日：2006-06-15

申请人： Bin Cheng ,  Tao Chang ,  Ye Liu ,  Jian Song ,  Jiandong Wang ,  Bingru Dou

发明人： Bin Cheng ,  Tao Chang ,  Ye Liu ,  Jian Song ,  Jiandong Wang ,  Bingru Dou

IPC分类号： G06F1/00 ,  H04N5/63

CPC分类号： G06F1/3203 ,  G06F1/3265 ,  Y02D10/153 ,  Y02D50/20

摘要： A method of power down control (PDC) for a display device is to be implemented by a processor in a power down controller of the display device. The power down controller includes a main system, a main system power source, and a PDC power source. The method includes the steps of: (A) receiving power from the PDC power source, determining if the main system is to be activated, and proceeding to step (B) if affirmative; (B) turning on the main system power source, and activating the main system; (C) determining if operation in a power down mode is intended, and proceeding to step (D) if affirmative; and (D) turning off the main system power source to operate in the power down mode. Further, a state parameter is stored that allows the main system to be restored to the operating state prior to a power interruption.

摘要翻译： 用于显示设备的掉电控制（PDC）的方法将由显示设备的掉电控制器中的处理器来实现。 断电控制器包括主系统，主系统电源和PDC电源。 该方法包括以下步骤：（A）从PDC电源接收电力，确定主系统是否被激活，如果肯定则进行步骤（B）; （B）打开主系统电源，激活主系统; （C）确定是否意图进行断电模式的操作，如果肯定则进行步骤（D）; 和（D）关闭主系统电源以在掉电模式下工作。 此外，存储允许主系统在电源中断之前恢复到运行状态的状态参数。

公开(公告)号：US20050054388A1

公开(公告)日：2005-03-10

申请号：US10914476

申请日：2004-08-09

申请人： Zhihong Dong ,  Qunli Wu ,  Yi Sun ,  Jian Song

发明人： Zhihong Dong ,  Qunli Wu ,  Yi Sun ,  Jian Song

IPC分类号： H02J7/00 ,  H04B1/38 ,  H04M3/54

CPC分类号： H04M3/54 ,  H02J7/00 ,  H04M2203/1091 ,  H04M2207/206

摘要： A communication system includes a Mobile Switching Center (103), a wireless terminal (a cell phone) (102), a wire-line terminal (a corded telephone) (105) and a battery-charging unit (101) for the cell phone. A call forwarding feature from the wireless cell phone to the wire-line telephone is automatically activated and set up when the wireless cell phone is placed on to the battery-charging unit. The call forwarding feature is automatically deactivated and cancelled when the cell phone is removed from the battery-charging unit.

摘要翻译： 通信系统包括移动交换中心（103），无线终端（手机）（102），有线电话（有线电话）（105）和用于手机的电池充电单元（101） 。 当将无线手机放置在电池充电单元上时，将自动激活并设置从无线蜂窝电话到有线电话的呼叫转移功能。 当手机从电池充电单元中取出时，呼叫转接功能将自动取消激活和取消。