公开(公告)号：US07796566B2

公开(公告)日：2010-09-14

申请号：US11452842

申请日：2006-06-14

申请人： Ariton E. Xhafa ,  Manish Airy ,  Harshal Shantanu Chhaya

发明人： Ariton E. Xhafa ,  Manish Airy ,  Harshal Shantanu Chhaya

IPC分类号： H04J3/00 ,  H04W4/00

CPC分类号： H04W36/06 ,  H04W28/20 ,  H04W72/042 ,  H04W84/12

摘要： Methods and apparatus to perform dynamic channel management and dynamic bandwidth changes in wireless local area networks are disclosed. A disclosed example method comprises deciding at an access point to initiate at least one of a bandwidth change or a channel assignment change; and sending a frame to initiate the at least one of the bandwidth change or the channel assignment change from the access point to one or more stations of a wireless network, the frame including a first field to identify a first channel and a second field to identify a second channel.

摘要翻译： 公开了在无线局域网中执行动态信道管理和动态带宽改变的方法和装置。 公开的示例性方法包括在接入点处决定发起带宽改变或信道分配改变中的至少一个; 以及发送帧以发起从接入点到无线网络的一个或多个站的带宽改变或信道分配改变中的至少一个，所述帧包括识别第一信道的第一字段和用于识别的第二字段 第二个渠道。

公开(公告)号：US20070160021A1

公开(公告)日：2007-07-12

申请号：US11540102

申请日：2006-09-29

申请人： Ariton E. Xhafa ,  Manish Airy ,  Jin-Meng Ho

发明人： Ariton E. Xhafa ,  Manish Airy ,  Jin-Meng Ho

IPC分类号： H04Q7/24

CPC分类号： H04W74/04 ,  H04W74/002

摘要： Methods and apparatus to provide fairness for wireless local area networks (WLANs) that use long network allocation vector (NAV) mechanisms are disclosed. A disclosed example method comprises receiving an indication from a station of a wireless network that a long NAV is to be terminated, and sending a contention-free end frame in response to the indication.

摘要翻译： 公开了使用长网络分配向量（NAV）机制的无线局域网（WLAN）的公平性的方法和装置。 所公开的示例性方法包括从无线网络的站接收指示将要终止长的NAV，以及响应于该指示发送无争用的结束帧。

公开(公告)号：US20070153830A1

公开(公告)日：2007-07-05

申请号：US11584947

申请日：2006-10-23

申请人： Ariton E. Xhafa ,  Manish Airy ,  Jin-Meng Ho

发明人： Ariton E. Xhafa ,  Manish Airy ,  Jin-Meng Ho

IPC分类号： H04J3/16

CPC分类号： H04W28/06 ,  H04W28/18 ,  H04W74/08 ,  H04W84/12

摘要： Methods and apparatus to provide fairness for wireless local area networks that use extended physical layer (a.k.a. PHY) protection mechanisms are disclosed. A disclosed example method comprises choosing a length field value for a frame header such that, when a transmit operation is ended, a legacy wireless station and a non-legacy wireless station of a wireless local area network are able to start contending for a wireless medium at substantially a same instant, and sending a frame across the wireless medium that includes the frame header.

摘要翻译： 公开了为使用扩展物理层（即PHY）保护机制的无线局域网提供公平性的方法和装置。 公开的示例方法包括：选择帧头的长度字段值，使得当发送操作结束时，无线局域网的传统无线站和非传统无线站能够开始竞争无线介质 在大致相同的时刻，并且跨越包括帧头的无线介质发送帧。

公开(公告)号：US09173178B2

公开(公告)日：2015-10-27

申请号：US13077839

申请日：2011-03-31

申请人： Soumen Chakraborty ,  Rishi Ranjan ,  Erik Stauffer ,  Kamlesh Rath ,  Manish Airy

发明人： Soumen Chakraborty ,  Rishi Ranjan ,  Erik Stauffer ,  Kamlesh Rath ,  Manish Airy

IPC分类号： H04W52/36 ,  H04W52/14 ,  H04W52/42

CPC分类号： H04W52/365 ,  H04W52/146 ,  H04W52/42

摘要： A method and system are provided in which a mobile device may be operable for long term evolution (LTE) communication or some other wireless technology via two or more transmit antennas. The device may comprise a power amplifier for each transmit antenna with substantially similar maximum power being provided by both amplifiers. A power headroom value may be determined in the device based on path loss values between the transmit antennas and a base station and the maximum transmit power for each transmit antenna. Transmission via one of the transmit antennas may occur concurrently with transmission via another of the transmit antennas. The device may generate an indication of the determined power headroom value for communication to the base station. The power headroom value may be reported periodically or in response to a change in the power received at the base station.

摘要翻译： 提供了一种方法和系统，其中移动设备可以经由两个或更多个发射天线用于长期演进（LTE）通信或一些其它无线技术。 该装置可以包括用于每个发射天线的功率放大器，其具有由两个放大器提供的基本相似的最大功率。 可以在设备中基于发射天线和基站之间的路径损耗值和每个发射天线的最大发射功率来确定功率余量值。 经由其中一个发射天线的传输可以通过另一个发射天线发射同时进行。 设备可以产生用于与基站通信的所确定的功率余量值的指示。 功率余量值可以周期性地或响应于在基站处接收的功率的变化来报告。

公开(公告)号：US20130130694A1

公开(公告)日：2013-05-23

申请号：US13340384

申请日：2011-12-29

申请人： Arzad Alam KHERANI ,  Soumen Chakraborty ,  Erik Stauffer ,  Manish Airy ,  Rishi Ranjan ,  Phani Kiran Boddapati ,  C. Ashok Kumar Reddy

发明人： Arzad Alam KHERANI ,  Soumen Chakraborty ,  Erik Stauffer ,  Manish Airy ,  Rishi Ranjan ,  Phani Kiran Boddapati ,  C. Ashok Kumar Reddy

IPC分类号： H04W36/30

CPC分类号： H04W52/0216 ,  H03D7/16 ,  H04L41/0803 ,  H04W28/0263 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/23 ,  Y02D70/24

摘要： A wireless communication device is disclosed that is capable of performing efficient handoffs in order to maximize connection time with either a serving or target base station. The wireless communication device performs measurements of only intra-frequency base stations to avoid retuning its radio module. Based on this information, as well as stored information relating to nearby base stations, the serving base station is able to estimate a position of the wireless communication device and compare the estimated position to positions of the known base stations in order to make a handoff decision. In addition, by storing information during measurement or handoff preparation, the device is capable of skipping handoff steps, immediately return to the serving base station after handoff failure, and/or perform streamlined PLMN searching.

摘要翻译： 公开了能够执行有效切换以便与服务或目标基站的连接时间最大化的无线通信设备。 无线通信设备仅执行频率内基站的测量，以避免重新调谐其无线电模块。 基于该信息以及与附近基站相关的存储信息，服务基站能够估计无线通信设备的位置，并将估计位置与已知基站的位置进行比较，以便进行切换决策 。 此外，通过在测量或切换准备期间存储信息，该设备能够跳过切换步骤，在切换失败之后立即返回到服务基站，和/或执行流线型PLMN搜索。

公开(公告)号：US20120071195A1

公开(公告)日：2012-03-22

申请号：US13238809

申请日：2011-09-21

申请人： Soumen Chakraborty ,  Rishi Ranjan ,  Kamlesh Rath ,  Manish Airy

发明人： Soumen Chakraborty ,  Rishi Ranjan ,  Kamlesh Rath ,  Manish Airy

IPC分类号： H04W52/04

CPC分类号： H04B1/3838 ,  H01Q1/245 ,  H04W52/18 ,  H04W52/228 ,  H04W52/288 ,  H04W52/346 ,  H04W52/367 ,  H04W52/38

摘要： Systems and methods for regulating transmit power in a mobile station to comply with SAR limits are disclosed. A mobile station may include a processor, transmitter, and proximity sensor. The transmitter is configured to operate at a transmit power controlled by a first transmit power limit. The proximity sensor identifies how close the mobile station is to a human head. A transmit power regulator, implemented on the processor, determines the cumulative energy radiated by the transmitter over a specified number of frames. If the cumulative energy exceeds an energy limit based on a SAR limit, and the proximity sensor indicates that the mobile station is close to a human head, the transmit power regulator may decrease the transmit power limit of the transmitter.

摘要翻译： 公开了一种用于调节移动台中发射功率以符合SAR限制的系统和方法。 移动台可以包括处理器，发射机和接近传感器。 发射器被配置为以由第一发射功率限制控制的发射功率工作。 接近传感器识别移动台到人头的距离。 在处理器上实现的发射功率调节器确定发射机在指定数量帧上辐射的累积能量。 如果累积能量基于SAR限制超过能量限制，并且接近传感器指示移动站接近人头，则发射功率调节器可以降低发射机的发射功率限制。

公开(公告)号：US20090034467A1

公开(公告)日：2009-02-05

申请号：US11888057

申请日：2007-07-31

申请人： Soumen Chakraborty ,  Sindhu Verma ,  Manish Airy ,  Anuj Puri

发明人： Soumen Chakraborty ,  Sindhu Verma ,  Manish Airy ,  Anuj Puri

IPC分类号： H04Q7/00

CPC分类号： H04W72/0446 ,  H04W72/044

摘要： Methods of allocating a plurality of periodically distributed frames of communication between a first wireless transceiver and a second wireless transceiver are disclosed. One method includes detecting periodic data for transmission between the wireless base station and the wireless mobile unit. A transmission map that maps frequency and time slots is generated for transmission of the data packets. Allocation information is included within less than all of a plurality of transmission maps of the plurality of periodically distributed frames. The allocation information designates frequency and time slots in which data packets identified as a periodic data type are transmitted to the second wireless transceiver for the plurality of periodically distributed frames.

摘要翻译： 公开了在第一无线收发器和第二无线收发器之间分配多个周期性分布的通信帧的方法。 一种方法包括检测用于无线基站和无线移动单元之间的传输的周期性数据。 生成映射频率和时隙的传输图，用于传输数据分组。 分配信息包括在多个周期性分布的帧的多个传输图的小于全部中。 分配信息指定频率和时隙，其中标识为周期性数据类型的数据分组被发送到用于多个周期性分布的帧的第二无线收发器。

公开(公告)号：US20060291432A1

公开(公告)日：2006-12-28

申请号：US11452842

申请日：2006-06-14

申请人： Ariton Xhafa ,  Manish Airy ,  Harshal Chhaya

发明人： Ariton Xhafa ,  Manish Airy ,  Harshal Chhaya

IPC分类号： H04J3/00

CPC分类号： H04W36/06 ,  H04W28/20 ,  H04W72/042 ,  H04W84/12

摘要： Methods and apparatus to perform dynamic channel management and dynamic bandwidth changes in wireless local area networks are disclosed. A disclosed example method comprises deciding at an access point to initiate at least one of a bandwidth change or a channel assignment change; and sending a frame to initiate the at least one of the bandwidth change or the channel assignment change from the access point to one or more stations of a wireless network, the frame including a first field to identify a first channel and a second field to identify a second channel.

摘要翻译： 公开了在无线局域网中执行动态信道管理和动态带宽改变的方法和装置。 公开的示例性方法包括在接入点处决定发起带宽改变或信道分配改变中的至少一个; 以及发送帧以发起从接入点到无线网络的一个或多个站的带宽改变或信道分配改变中的至少一个，所述帧包括识别第一信道的第一字段和用于识别的第二字段 第二个渠道。

公开(公告)号：US08767670B2

公开(公告)日：2014-07-01

申请号：US12951149

申请日：2010-11-22

申请人： Soumen Chakraborty ,  Sindhu Verma ,  Manish Airy ,  Anuj Puri

发明人： Soumen Chakraborty ,  Sindhu Verma ,  Manish Airy ,  Anuj Puri

IPC分类号： H04W4/00

CPC分类号： H04W72/0446 ,  H04W72/044

摘要： Methods of allocating a plurality of periodically distributed frames of communication between a first wireless transceiver and a second wireless transceiver are disclosed. One method includes detecting periodic data for transmission between the wireless base station and the wireless mobile unit. A transmission map that maps frequency and time slots is generated for transmission of the data packets. Allocation information is included within less than all of a plurality of transmission maps of the plurality of periodically distributed frames. The allocation information designates frequency and time slots in which data packets identified as a periodic data type are transmitted to the second wireless transceiver for the plurality of periodically distributed frames.

摘要翻译： 公开了在第一无线收发器和第二无线收发器之间分配多个周期性分布的通信帧的方法。 一种方法包括检测用于无线基站和无线移动单元之间的传输的周期性数据。 生成映射频率和时隙的传输图，用于传输数据分组。 分配信息包括在多个周期性分布的帧的多个传输图的小于全部中。 分配信息指定频率和时隙，其中标识为周期性数据类型的数据分组被发送到用于多个周期性分布的帧的第二无线收发器。

公开(公告)号：US08494466B2

公开(公告)日：2013-07-23

申请号：US12079404

申请日：2008-03-26

申请人： Louay Jalloul ,  Sam P. Alex ,  Soumen Chakraborty ,  Sindhu Verma ,  Manish Airy ,  Anuj Puri

发明人： Louay Jalloul ,  Sam P. Alex ,  Soumen Chakraborty ,  Sindhu Verma ,  Manish Airy ,  Anuj Puri

IPC分类号： H04B17/02

CPC分类号： H04W24/00 ,  H04W24/10 ,  H04W48/18 ,  H04W88/06

摘要： A method and apparatus of selecting which of a plurality of receiver chains of a mobile unit to receive wireless signals, is disclosed. One method includes measuring a first receive signal quality while all of the plurality of receiver chains are receiving wireless signals, and measuring a second receive signal quality while a subset of the plurality of receiver chains are receiving wireless signals. The subset of the plurality of receiver chains are selected to receive wireless signal unless the first receive signal quality is a threshold better than the second receive signal quality. If the first receive signal quality is a threshold better than the second receive signal quality then all the plurality of receiver chains are selected to receive wireless signals.