公开(公告)号：US20110096796A1

公开(公告)日：2011-04-28

申请号：US12910608

申请日：2010-10-22

申请人： HONGYUAN ZHANG ,  Raja Banerjea ,  Yong Liu ,  Mao Yu

发明人： HONGYUAN ZHANG ,  Raja Banerjea ,  Yong Liu ,  Mao Yu

IPC分类号： H04J3/24

CPC分类号： H04B7/0452 ,  H04B7/0413 ,  H04B7/0669 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0053 ,  H04L25/0226 ,  H04W84/12

摘要： In a method for generating a preamble of a data unit for transmission via a communication channel, an indication of a first number of spatial or space-time streams is included in a first field of the preamble. The first number of spatial or space-time streams corresponds to transmission of the data unit to a first receiver. One or more training sequences are included in a second field of the preamble. The preamble is formatted such that the first field of the preamble will be transmitted prior to the second field of the preamble being transmitted.

摘要翻译： 在用于生成用于经由通信信道传输的数据单元的前导码的方法中，在前导码的第一字段中包括第一数量的空间或时空流的指示。 第一数量的空间或时空流对应于数据单元向第一接收机的传输。 一个或多个训练序列被包括在前导码的第二个字段中。 格式化前置码使得前导码的第一字段将在正在发送的前导码的第二字段之前被发送。

公开(公告)号：US08954502B1

公开(公告)日：2015-02-10

申请号：US12852307

申请日：2010-08-06

申请人： Milind Kopikare ,  Sarang Shrikrishna Wagholikar ,  Raja Banerjea

发明人： Milind Kopikare ,  Sarang Shrikrishna Wagholikar ,  Raja Banerjea

IPC分类号： G06F15/16 ,  G06F15/173

CPC分类号： H04L67/1051 ,  H04L67/32

摘要： A first message is received that includes a value indicative of a first timeout interval associated with configuring a second device to operate as a peer-to-peer (P2P) group owner or a P2P client in a P2P wireless network. A second timeout interval is determined based at least on the first timeout interval, and it is determined whether the second timeout interval expired. It is determined whether a second message is received from the second device prior to the second timeout interval expiring, and it is determined that a P2P connection with the second device failed based on a determination that the second message was not received from the second device prior to the second timeout interval expiring.

摘要翻译： 接收到第一消息，其包括指示与配置第二设备在P2P无线网络中作为点对点（P2P）组所有者或P2P客户端操作相关联的第一超时间隔的值。 至少基于第一超时间隔来确定第二超时间隔，并确定第二超时间隔是否到期。 确定在第二超时间隔到期之前是否从第二设备接收到第二消息，并且确定与第二设备的P2P连接基于第二消息未被从第二设备接收的确定失败 到第二个超时间隔到期。

公开(公告)号：US08892722B1

公开(公告)日：2014-11-18

申请号：US12793850

申请日：2010-06-04

申请人： Milind Kopikare ,  Sarang Shrikrishna Wagholikar ,  Raja Banerjea

发明人： Milind Kopikare ,  Sarang Shrikrishna Wagholikar ,  Raja Banerjea

IPC分类号： G06F15/173 ,  H04L29/06

CPC分类号： G06F15/173 ,  H04L65/1066 ,  H04L67/1042 ,  H04L67/1061

摘要： A discovery control system of a first device includes a mode selection module. The module selection module is configured to select a listen mode and a search mode. A discovery control module includes a probe request module. The probe request module is configured to generate a probe request signal within the first device and receive a probe response signal generated by a second device during the search mode. A probe response module is configured to generate a probe response signal within the first device during the listen mode and the search mode and based on a probe request signal generated by the second device.

摘要翻译： 第一装置的发现控制系统包括模式选择模块。 模块选择模块被配置为选择监听模式和搜索模式。 发现控制模块包括探测请求模块。 探测请求模块被配置为在第一设备内生成探测请求信号，并且在搜索模式期间接收由第二设备产生的探测响应信号。 探测响应模块被配置为在侦听模式和搜索模式期间并且基于由第二设备生成的探测请求信号来在第一设备内生成探测响应信号。

公开(公告)号：US08532041B1

公开(公告)日：2013-09-10

申请号：US12759336

申请日：2010-04-13

申请人： Paul A. Lambert ,  Raja Banerjea

发明人： Paul A. Lambert ,  Raja Banerjea

IPC分类号： H04W4/00 ,  H04W72/00 ,  H04J3/17

CPC分类号： H04W16/14 ,  H04W48/08 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042

摘要： Methods for transmitting information in a regulated spectrum and networks configured to operate within a regulated spectrum (and optionally, within a given geographic region) are disclosed. The methods generally include receiving or transmitting radio signals encoded with spectral allocation information, analyzing the spectral allocation information to determine available bands in the regulated spectrum for signal transmission, and transmitting signals on at least one of the available bands in the regulated spectrum. The spectral allocation information includes restriction(s) on a bandwidth or bandwidth range in the regulated spectrum; The network generally includes a central database storing the spectral allocation information, a transmitter configured to transmit radio signals encoded with the spectral allocation information, and a receiving device configured to receive the radio signals, analyze the available bands in the regulated spectrum from the spectral allocation information, and transmit signals on at least one of the available bands.

公开(公告)号：US08514882B1

公开(公告)日：2013-08-20

申请号：US13474999

申请日：2012-05-18

申请人： Bhaskar Chowdhuri ,  Shui Cheong Lee ,  Hongyu Xie ,  Yashodhara Devadiga ,  Raja Banerjea

发明人： Bhaskar Chowdhuri ,  Shui Cheong Lee ,  Hongyu Xie ,  Yashodhara Devadiga ,  Raja Banerjea

IPC分类号： H04W88/06

CPC分类号： H04J3/1694 ,  H04W74/04

摘要： Embodiments of the present invention provide a method that includes receiving, by a traffic arbiter, a predetermined time-slot allocation of one or more uplink time slots and/or one or more downlink time slots for a first wireless media access control (MAC) configured to operate within a first wireless transmission system. The method also includes determining, by the traffic arbiter, whether to grant a second wireless MAC, configured to operate within a second wireless transmission system, permission to transmit or receive based at least in part on the predetermined time-slot allocation.

摘要翻译： 本发明的实施例提供一种方法，其包括由业务仲裁器接收针对配置的第一无线媒体访问控制（MAC）的一个或多个上行链路时隙和/或一个或多个下行链路时隙的预定时隙分配 以在第一无线传输系统内操作。 该方法还包括由业务仲裁器确定是否授予被配置为在第二无线传输系统内操作的第二无线MAC，至少部分地基于预定时隙分配来发送或接收许可。

公开(公告)号：US08472383B1

公开(公告)日：2013-06-25

申请号：US12952059

申请日：2010-11-22

申请人： Raja Banerjea ,  Hongyuan Zhang

发明人： Raja Banerjea ,  Hongyuan Zhang

IPC分类号： H04W4/00 ,  H04Q11/12 ,  H04B1/04 ,  H04B7/00

CPC分类号： H04W72/0473 ,  H04B7/0697

摘要： A method in a receiving device that receives data from a plurality of transmitting devices via a shared wireless communication channel includes selecting a group of two or more transmitting devices from the plurality of transmitting devices for simultaneous transmission of respective data to the receiving device, so that each transmitting device in the group of transmitting devices transmits the respective data to the receiving device at a nominal power level of the transmitting device, and receiving the respective data from each in the group of transmitting devices simultaneously via the shared wireless communication channel.

摘要翻译： 接收装置中经由共享无线通信信道从多个发送装置接收数据的方法包括从多个发送装置中选择一组两个以上的发送装置，以将各自的数据同时发送到接收装置，使得 发送设备组中的每个发送设备以发送设备的标称功率电平将相应数据发送到接收设备，并且经由共享无线通信信道同时从发送设备组中的每一个接收相应的数据。

公开(公告)号：US20120320889A1

公开(公告)日：2012-12-20

申请号：US13494515

申请日：2012-06-12

申请人： Hongyuan Zhang ,  Raja Banerjea ,  Sudhir Srinivasa

发明人： Hongyuan Zhang ,  Raja Banerjea ,  Sudhir Srinivasa

IPC分类号： H04W84/12

CPC分类号： H04L1/004 ,  H04L1/0025 ,  H04L1/0043 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/08 ,  H04L7/048 ,  H04L27/2602 ,  H04L27/2613

摘要： A method includes generating first and second preambles for first and second data units corresponding to first and second PHY modes, respectively. Generating the first preamble includes generating a first STF, LTF, and SIG field. The first SIG field includes an OFDM symbol modulated according to a first modulation technique. The OFDM symbol begins a first time interval, and ends a second time interval, after the first LTF begins. Generating the second preamble includes generating a second STF and LTF. The second STF has a greater duration, and different repeating sequence, than the first STF. The second LTF includes a second OFDM symbol modulated according to a second modulation technique, and at least partially occupying a location beginning a third time interval, and ending a fourth time interval, after the second LTF begins. The third and fourth time intervals are equal to the first and second time intervals, respectively.

摘要翻译： 一种方法包括分别为对应于第一和第二PHY模式的第一和第二数据单元生成第一和第二前导码。 生成第一前同步码包括生成第一STF，LTF和SIG字段。 第一SIG字段包括根据第一调制技术调制的OFDM符号。 OFDM符号开始第一时间间隔，并且在第一LTF开始之后结束第二时间间隔。 生成第二前导码包括生成第二STF和LTF。 第二STF具有比第一STF更长的持续时间和不同的重复序列。 第二LTF包括根据第二调制技术调制的第二OFDM符号，并且至少部分地占据从第三时间间隔开始的位置，并且在第二LTF开始之后结束第四时间间隔。 第三和第四时间间隔分别等于第一和第二时间间隔。

公开(公告)号：US20120207106A1

公开(公告)日：2012-08-16

申请号：US13369102

申请日：2012-02-08

申请人： Raja Banerjea ,  Hongyuan Zhang ,  Paul A. Lambert

发明人： Raja Banerjea ,  Hongyuan Zhang ,  Paul A. Lambert

IPC分类号： H04W72/04 ,  H04W84/02

CPC分类号： H04W72/044 ,  H04W72/0453

摘要： In a method available frequency band for communication is determined and a frequency fc of a carrier is determined based on the available frequency band. The carrier is set to the frequency fc for communicating with one or more communication devices via a first communication channel within the available frequency band using. After communicating via the first communication channel, the carrier frequency fc is used for communicating with one or more communication devices via a second communication channel within the available bandwidth. A center frequency of the first channel is different than a center frequency of the second channel.

摘要翻译： 在方法中确定用于通信的可用频带，并且基于可用频带确定载波的频率fc。 载波被设置为频率fc，用于经由可用频带内的第一通信信道与一个或多个通信设备进行通信。 在通过第一通信信道进行通信之后，载波频率fc用于经由可用带宽内的第二通信信道与一个或多个通信设备进行通信。 第一通道的中心频率不同于第二通道的中心频率。

公开(公告)号：US20120087426A1

公开(公告)日：2012-04-12

申请号：US13252710

申请日：2011-10-04

申请人： Hongyuan Zhang ,  Sudhir Srinivasa ,  Hyukjoon Kwon ,  Raja Banerjea

发明人： Hongyuan Zhang ,  Sudhir Srinivasa ,  Hyukjoon Kwon ,  Raja Banerjea

IPC分类号： H04L27/28

CPC分类号： H04L27/2646 ,  H04B7/0617 ,  H04B7/066 ,  H04L1/06 ,  H04L1/0618 ,  H04L1/0693 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0057 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03808 ,  H04W24/10

摘要： In a method for transmitting channel feedback data from a receiver to a transmitter, channel data for a plurality of orthogonal frequency division multiplexing (OFDM) tones for one or more spatial streams corresponding to a communication channel is determined. A plurality of angle values associated with the one or more spatial streams and one or more OFDM tones is determined. For each of the one or more spatial streams, a per-tone signal to noise ratio (PT-SNR) associated with one or more OFDM tones is determined, and an average signal to noise ratio (avg-SNR) is determined by averaging the signal to noise ratio (SNR) values. A feedback report is generated to include at least i) the plurality of angle values, ii) the PT-SNRs, and iii) the avg-SNR. The feedback report is included in a data unit to be transmitted from the receiver to the transmitter.

摘要翻译： 在从接收机向发射机发送信道反馈数据的方法中，确定用于与通信信道对应的一个或多个空间流的多个正交频分复用（OFDM）音调的信道数据。 确定与一个或多个空间流和一个或多个OFDM音调相关联的多个角度值。 对于一个或多个空间流中的每一个，确定与一个或多个OFDM音调相关联的每音调信噪比（PT-SNR），并且通过将平均信噪比（avg-SNR）平均化来确定平均信噪比 信噪比（SNR）值。 生成反馈报告至少包括i）多个角度值，ii）PT-SNR，以及iii）平均SNR。 反馈报告被包括在要从接收机发射到发射机的数据单元中。

公开(公告)号：US08014804B2

公开(公告)日：2011-09-06

申请号：US10838868

申请日：2004-05-04

申请人： Raja Banerjea

发明人： Raja Banerjea

IPC分类号： H04B7/00

CPC分类号： H04W48/20 ,  H04B17/24 ,  H04B17/336 ,  H04B17/382 ,  H04W24/00 ,  H04W48/14 ,  H04W84/12

摘要： A station associates with an access point in a wireless local area network conforming to, e.g., an IEEE 802.11 standard. The station measures the signal-to-noise ratio (SNR) for the downlink from each of the access points sending either a beacon or a probe response, and forms a first list of access points in decreasing order of received downlink SNR. The station transmits a link test request to each access point to query the access point for the SNR of the link test request received at the corresponding access point. Access points respond to the link test request with corresponding link test responses containing the corresponding SNR. The station i) forms a second list of access points in decreasing order of received uplink SNR and ii) compares the first and second lists to determine which access point to associate with based on overall quality of the uplink and downlink channels.

摘要翻译： 站与根据例如IEEE 802.11标准的无线局域网中的接入点相关联。 该站测量来自发送信标或探测响应的每个接入点的下行链路的信噪比（SNR），并以接收到的下行链路SNR的递减顺序形成接入点的第一列表。 站点向每个接入点发送链路测试请求，以向接入点查询在相应接入点处接收到的链路测试请求的SNR。 接入点响应链路测试请求，并具有包含相应SNR的相应链路测试响应。 站i）以接收到的上行链路SNR的递减顺序形成接入点的第二列表，以及ii）基于上行链路和下行链路信道的总体质量来比较第一和第二列表以确定与哪个接入点相关联。