公开(公告)号：US20110194644A1

公开(公告)日：2011-08-11

申请号：US13025081

申请日：2011-02-10

申请人： Yong Liu ,  Raja Banerjea ,  Harish Ramamurthy

发明人： Yong Liu ,  Raja Banerjea ,  Harish Ramamurthy

IPC分类号： H04L27/00

CPC分类号： H04W72/121 ,  H04L5/0023 ,  H04L5/0044 ,  H04W74/0816 ,  H04W74/0833 ,  H04W84/12

摘要： Systems and techniques relating to wireless communications are described. A described technique includes identifying devices to receive spatially steered data frames during a transmission opportunity (TXOP), the data frames being included in a multi-user frame; transmitting, during the TXOP, request to send (RTS) information to the identified devices; receiving clear to send (CTS) responses from the identified devices; determining a bandwidth configuration for the multi-user frame based on the CTS responses; and transmitting, during the TXOP, the multi-user frame to the identified devices in accordance with the bandwidth configuration. The bandwidth configuration can indicate one or more frequency bands that are available during at least a portion of the TXOP.

摘要翻译： 描述与无线通信相关的系统和技术。 所描述的技术包括识别在传输机会（TXOP）期间接收空间转向数据帧的设备，数据帧被包括在多用户帧中; 在TXOP期间，向所识别的设备发送（RTS）信息的请求; 从识别的设备接收明确的发送（CTS）响应; 基于所述CTS响应来确定所述多用户帧的带宽配置; 以及根据所述带宽配置在所述TXOP期间将所述多用户帧发送到所识别的设备。 带宽配置可以指示在TXOP的至少一部分期间可用的一个或多个频带。

公开(公告)号：US09131399B2

公开(公告)日：2015-09-08

申请号：US13586698

申请日：2012-08-15

申请人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

发明人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

IPC分类号： H04L12/26 ,  H04W28/06 ,  H04L5/00 ,  H04L27/00 ,  H04W8/26 ,  H04W84/12

CPC分类号： H04L27/2613 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/0006 ,  H04L27/2602 ,  H04W8/26 ,  H04W28/06 ,  H04W72/08 ,  H04W84/12

摘要： In a method for generating a control data unit a physical layer (PHY) preamble of the control data unit is generated. In generating the PHY preamble, an address field is generated to indicate a communication device for which the data unit is intended, and a frame type field is generated to indicate a type of the control data unit. The address field and the frame type field are included in the PHY preamble. The control data unit is generated to include the PHY preamble. The control data unit is transmitted. The control data unit omits (i) a MAC header, and (iii) a payload.

摘要翻译： 在产生控制数据单元的方法中，生成控制数据单元的物理层（PHY）前置码。 在生成PHY前导码时，生成地址字段以指示数据单元预期的通信设备，并且生成帧类型字段以指示控制数据单元的类型。 地址字段和帧类型字段包括在PHY前导码中。 生成控制数据单元以包括PHY前导码。 发送控制数据单元。 控制数据单元省略（i）MAC报头，和（iii）有效载荷。

公开(公告)号：US08571591B2

公开(公告)日：2013-10-29

申请号：US13218811

申请日：2011-08-26

申请人： Yong Liu ,  Harish Ramamurthy

发明人： Yong Liu ,  Harish Ramamurthy

IPC分类号： H04J3/06

CPC分类号： H04W28/0205 ,  H04W24/08 ,  H04W48/12 ,  H04W72/02

摘要： Systems and techniques relating to wireless communications are described. A described technique includes monitoring a group of wireless channels that are useable by at least a first wireless communication device for wireless communications, receiving one or more beacon signals from one or more second wireless communication devices, identifying, within the group of wireless channels, one or more primary channels on which the one or more beacon signals are received, estimating a traffic load for the one or more identified primary channels, determining, based on the estimated traffic load, whether to use as a primary channel for the first wireless communication device, a channel of the one or more identified primary channels or a channel of the group of wireless channels that is separate from the one or more identified primary channels; and selecting the primary channel for the first wireless communication device based on a result of the determining.

摘要翻译： 描述与无线通信相关的系统和技术。 所描述的技术包括监视可由至少第一无线通信设备用于无线通信的一组无线信道，从一个或多个第二无线通信设备接收一个或多个信标信号，在无线信道组内识别一个 接收一个或多个信标信号的多个主要信道，估计一个或多个识别的主要信道的业务负载，基于所估计的业务负载，确定是否用作第一无线通信设备的主要信道 所述一个或多个识别的主要信道的信道或与所述一个或多个识别的主信道分离的所述一组无线信道的信道; 以及基于所述确定的结果为所述第一无线通信设备选择所述主信道。

公开(公告)号：US20130044607A1

公开(公告)日：2013-02-21

申请号：US13586698

申请日：2012-08-15

申请人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

发明人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

IPC分类号： H04W8/26 ,  H04W24/04

CPC分类号： H04L27/2613 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/0006 ,  H04L27/2602 ,  H04W8/26 ,  H04W28/06 ,  H04W72/08 ,  H04W84/12

摘要： In a method for generating a control data unit a physical layer (PHY) preamble of the control data unit is generated. In generating the PHY preamble, an address field is generated to indicate a communication device for which the data unit is intended, and a frame type field is generated to indicate a type of the control data unit. The address field and the frame type field are included in the PHY preamble. The control data unit is generated to include the PHY preamble. The control data unit is transmitted. The control data unit omits (i) a MAC header, and (iii) a payload.

摘要翻译： 在产生控制数据单元的方法中，生成控制数据单元的物理层（PHY）前置码。 在生成PHY前导码时，生成地址字段以指示数据单元所针对的通信设备，并且生成帧类型字段以指示控制数据单元的类型。 地址字段和帧类型字段包括在PHY前导码中。 生成控制数据单元以包括PHY前导码。 发送控制数据单元。 控制数据单元省略（i）MAC报头，和（iii）有效载荷。

公开(公告)号：US08571497B1

公开(公告)日：2013-10-29

申请号：US13297420

申请日：2011-11-16

申请人： Li Lin ,  Arnab Kumar Mitra ,  Daxiao Yu ,  Harish Ramamurthy ,  Sergey Timofeev ,  Lance Nagamine ,  Brian Bosso

发明人： Li Lin ,  Arnab Kumar Mitra ,  Daxiao Yu ,  Harish Ramamurthy ,  Sergey Timofeev ,  Lance Nagamine ,  Brian Bosso

IPC分类号： H01Q11/12 ,  H04B1/04

CPC分类号： H04W52/08 ,  H04B1/04 ,  H04B17/13 ,  H04B2001/0416

摘要： A radio frequency transmitting system includes a programmable amplifier, a power amplifier, a power detector, and a calibration module. The programmable amplifier is configured to amplify an input signal to generate an amplified signal. The power amplifier is configured to output a transmit signal in response to the amplified signal. The transmit signal has a transmit power. The power detector is configured to generate a power measurement in response to the transmit power. The calibration module is configured to implement a plurality of feedback loops to adjust a gain of the programmable amplifier in response to a difference between the power measurement and a desired transmit power. The calibration module is configured to select one of the plurality of feedback loops in response to the desired transmit power.

摘要翻译： 射频发射系统包括可编程放大器，功率放大器，功率检测器和校准模块。 可编程放大器被配置为放大输入信号以产生放大信号。 功率放大器被配置为响应于放大信号输出发射信号。 发射信号具有发射功率。 功率检测器被配置为响应于发射功率而产生功率测量。 校准模块被配置为实现多个反馈回路以响应于功率测量和期望的发射功率之间的差异来调节可编程放大器的增益。 校准模块被配置为响应于期望的发射功率来选择多个反馈回路之一。

公开(公告)号：US20130044688A1

公开(公告)日：2013-02-21

申请号：US13586704

申请日：2012-08-15

申请人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

发明人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

IPC分类号： H04W74/04 ,  H04W4/00

CPC分类号： H04L27/2613 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/0006 ,  H04L27/2602 ,  H04W8/26 ,  H04W28/06 ,  H04W72/08 ,  H04W84/12

摘要： In a method for generating a data unit for transmission in a wireless network, a physical layer (PHY) preamble is generated. A field to indicate whether an acknowledgment data unit is intended to follow the data unit is generated and included in the PHY preamble. A media access control layer (MAC) header is generated, and the data unit is generated to include the PHY preamble and the MAC header. The data unit is transmitted.

摘要翻译： 在用于生成用于在无线网络中传输的数据单元的方法中，生成物理层（PHY）前导码。 用于指示确认数据单元是否旨在跟随数据单元的字段被生成并包括在PHY前导码中。 生成媒体访问控制层（MAC）报头，并且生成数据单元以包括PHY前导码和MAC报头。 发送数据单元。

公开(公告)号：US20130044687A1

公开(公告)日：2013-02-21

申请号：US13586678

申请日：2012-08-15

申请人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

发明人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

IPC分类号： H04W8/26

CPC分类号： H04L27/2613 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/0006 ,  H04L27/2602 ,  H04W8/26 ,  H04W28/06 ,  H04W72/08 ,  H04W84/12

摘要： In a method for transmitting a data unit in a wireless communication network, a physical layer (PHY) preamble and a media access control layer (MAC) header are generated. In generating the MAC header, a first address field to include a first address and a second address field to include a second address are generated. The first, not globally unique, address indicates a communication device for which the data unit is intended or a communication device that is transmitting the data unit. The second address field indicates the other one of a communication device for which the data unit is intended or a communication device that is transmitting the data unit. The first address field and the second address field are included in the MAC header. The MAC header omits a globally unique address corresponding to the first address of the first address field.

摘要翻译： 在用于在无线通信网络中发送数据单元的方法中，生成物理层（PHY）前导码和媒体访问控制层（MAC）报头。 在生成MAC报头时，生成包括第一地址和第二地址字段以包括第二地址的第一地址字段。 第一个而不是全球唯一的地址指示数据单元所针对的通信设备或正在发送数据单元的通信设备。 第二地址字段指示数据单元所针对的通信设备中的另一个或正在发送数据单元的通信设备。 第一地址字段和第二地址字段包括在MAC报头中。 MAC标头省略与第一地址字段的第一地址相对应的全局唯一地址。

公开(公告)号：US20150207599A1

公开(公告)日：2015-07-23

申请号：US14502771

申请日：2014-09-30

申请人： Joonsuk Kim ,  Yong Liu ,  Christopher Hansen ,  Harish Ramamurthy

发明人： Joonsuk Kim ,  Yong Liu ,  Christopher Hansen ,  Harish Ramamurthy

IPC分类号： H04L5/00 ,  H04B7/26

CPC分类号： H04B7/2621 ,  H04L5/001 ,  H04L5/0048 ,  H04L5/0064 ,  H04L5/0092

摘要： A system and method for partial bandwidth communication. The system includes a device that has a transceiver configured to connect to a network, a memory storing an executable program and a processor. The program causes the processor to perform operations including receiving data to be transmitted to second device, determining if the data uses less than a predetermined bandwidth used as a unit for a carrier aggregation, determining a plurality of sub-bands in the predetermined bandwidth, each sub-band including at least one pilot and a plurality of frequency tones, receiving network information from the second device, the network information indicating a preferred sub-band of the sub-bands, assigning one of the sub-bands to the second device based upon the network information, generating a packet including an indication, the indication indicating the assigned sub-band; transmitting the packet to the second device and transmitting the data in the assigned sub-band.

摘要翻译： 一种用于部分带宽通信的系统和方法。 该系统包括具有被配置为连接到网络的收发器的设备，存储可执行程序的存储器和处理器。 该程序使处理器执行包括接收要发送到第二设备的数据的操作，确定数据是否使用小于作为载波聚合的单位的预定带宽，确定预定带宽中的多个子带，每个 子带包括至少一个导频和多个频率音调，从第二设备接收网络信息，所述网络信息指示子频带的优选子带，将一个子带分配给第二设备 根据所述网络信息，生成包括指示的分组，所述指示指示所分配的子带; 将分组发送到第二设备并在分配的子带中发送数据。

公开(公告)号：US09083590B2

公开(公告)日：2015-07-14

申请号：US13586690

申请日：2012-08-15

申请人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

发明人： Yong Liu ,  Harish Ramamurthy ,  Hongyuan Zhang

IPC分类号： H04L9/00 ,  H04K1/00 ,  H04W8/26 ,  H04L27/26 ,  H04W28/06 ,  H04L27/00 ,  H04L5/00 ,  H04W84/12

CPC分类号： H04L27/2613 ,  H04L5/0053 ,  H04L5/0091 ,  H04L27/0006 ,  H04L27/2602 ,  H04W8/26 ,  H04W28/06 ,  H04W72/08 ,  H04W84/12

摘要： In a method for generating a data unit for transmission in a wireless network, a physical layer (PHY) preamble is generated. In generating the PHY preamble, a first indicator is generated to indicate at least one of (i) whether the data unit includes data offloaded from a mobile telephony network separate from the wireless network, or (ii) whether the data unit (a) was generated by, or (b) is addressed to, a communication device that supports offloading of data from the mobile telephony network to the wireless network. The first indicator is included in the PHY preamble. Additionally, a media access control layer (MAC) header is generated. The data unit is generated to include the PHY preamble and the MAC header. The data unit is then caused to be transmitted.

摘要翻译： 在用于生成用于在无线网络中传输的数据单元的方法中，生成物理层（PHY）前导码。 在生成PHY前导码时，生成第一指示符以指示以下各项中的至少一个：（i）数据单元是否包括从与无线网络分离的移动电话网络卸载的数据，或者（ii）数据单元（a）是否为 由或由（b）生成的通信设备涉及支持将数据从移动电话网络卸载到无线网络的通信设备。 第一指示符包括在PHY前导码中。 另外，生成媒体访问控制层（MAC）报头。 生成数据单元以包括PHY前导码和MAC头。 然后使数据单元被发送。

公开(公告)号：US09026162B2

公开(公告)日：2015-05-05

申请号：US13458227

申请日：2012-04-27

申请人： Sarang Shrikrishna Wagholikar ,  Harish Ramamurthy ,  Rajesh Shreeram Bhagwat ,  Matthew L. Semersky

发明人： Sarang Shrikrishna Wagholikar ,  Harish Ramamurthy ,  Rajesh Shreeram Bhagwat ,  Matthew L. Semersky

IPC分类号： H04W84/12 ,  H04W72/12 ,  H04W16/14 ,  H04W88/02 ,  H04W88/06

CPC分类号： H04W72/0446 ,  H04L5/0092 ,  H04W16/14 ,  H04W72/1215 ,  H04W72/1278 ,  H04W84/12 ,  H04W88/02 ,  H04W88/06

摘要： Apparatus configured to be implemented in a first wireless communication device, having corresponding non-transitory computer-readable media, comprise a memory configured to store a coexistence schedule, wherein the coexistence schedule defines WLAN intervals and non-WLAN intervals; a WLAN transceiver configured to transmit WLAN signals in an IBSS network; a non-WLAN transceiver configured to transmit wireless non-WLAN signals; and a coexistence circuit configured to allow the WLAN transceiver to transmit the WLAN signals in the IBSS network only during the WLAN intervals, wherein the coexistence circuit is further configured to allow the non-WLAN transceiver to transmit the wireless non-WLAN signals only during the non-WLAN intervals; and wherein the coexistence circuit is further configured to cause the WLAN transceiver to transmit one or more coexistence request messages, each indicating a duration of at least one of a respective one of the WLAN intervals, and a respective one of the non-WLAN intervals.

摘要翻译： 被配置为在具有对应的非暂时计算机可读介质的第一无线通信设备中实现的设备包括被配置为存储共存调度的存储器，其中所述共存调度定义WLAN间隔和非WLAN间隔; 配置为在IBSS网络中发送WLAN信号的WLAN收发器; 配置为发送无线非WLAN信号的非WLAN收发器; 以及共存电路，其被配置为仅允许WLAN收发器仅在WLAN间隔期间在IBSS网络中发送WLAN信号，其中所述共存电路还被配置为允许非WLAN收发器仅在所述WLAN收发器期间发送所述无线非WLAN信号 非WLAN间隔; 并且其中所述共存电路还被配置为使得所述WLAN收发器发送一个或多个共存请求消息，每个共存请求消息指示所述WLAN间隔中的相应一个中的至少一个的持续时间以及所述非WLAN间隔中的相应一个。