公开(公告)号：US08483690B2

公开(公告)日：2013-07-09

申请号：US12888169

申请日：2010-09-22

申请人： Farhad Meshkati ,  Vinay Chande ,  Mehmet Yavuz ,  Sanjiv Nanda

发明人： Farhad Meshkati ,  Vinay Chande ,  Mehmet Yavuz ,  Sanjiv Nanda

IPC分类号： H04W36/08

CPC分类号： H04W48/12 ,  H04W36/0072 ,  H04W52/0235 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/24

摘要： A cell reselection parameter is transmitted on one carrier frequency for a defined period of time to cause access terminals operating on that carrier frequency to more aggressively search for access points on at least one other carrier frequency. For example, a femto cell operating on one carrier frequency may transmit a broadcast channel including a cell reselection parameter such as Sintersearch on another carrier frequency that is used by a macro cell. Here, the value of the cell reselection parameter (e.g., Sintersearch) is chosen so that the access terminals will more aggressively conduct inter-frequency searches. In addition, the cell reselection parameter is transmitted for a period of time that ensures that a nearby access terminal will receive the parameter during its wakeup interval.

摘要翻译： 小区重选参数在一个载波频率上发送一定时间段，以使得在该载波频率上工作的接入终端能够更积极地搜索至少一个其它载波频率上的接入点。 例如，在一个载波频率上工作的毫微微小区可以在宏小区使用的另一个载波频率上发送包括诸如Sintersearch之类的小区重选参数的广播信道。 这里，选择小区重选参数（例如，Sintersearch）的值，使得接入终端将更积极地进行频间搜索。 此外，小区重选参数被发送一段时间，以确保附近接入终端在其唤醒间隔期间接收该参数。

公开(公告)号：US08472473B2

公开(公告)日：2013-06-25

申请号：US10964237

申请日：2004-10-13

申请人： John W. Ketchum ,  Jay Rodney Walton ,  Sanjiv Nanda

发明人： John W. Ketchum ,  Jay Rodney Walton ,  Sanjiv Nanda

IPC分类号： H04J3/22

CPC分类号： H04W28/065 ,  H04L1/1635 ,  H04L25/03343 ,  H04L29/06 ,  H04L47/2441 ,  H04L69/16 ,  H04L69/161 ,  H04L69/22 ,  H04L69/32 ,  H04W80/02 ,  H04W84/12

摘要： Embodiments addressing MAC processing for efficient use of high throughput systems are disclosed. In one aspect, a protocol stack is disclosed comprising one or more of the following: an adaptation layer, a data link control layer, a physical layer, and a layer manager. In another aspect, physical layer feedback is used for adaptation layer processing. In one embodiment, physical layer feedback is used for segmentation. In another embodiment, physical layer feedback is used for multicast mapping onto one or more unicast channels. In another aspect, a data unit for transmission from a first station to a second station comprises zero or more complete sub-data units, zero or one partial sub-data units from a prior transmission, and zero or one partial sub-data units to fill the data unit. In one embodiment, a pointer may be used to indicate the location of any complete sub-data units.

摘要翻译： 公开了解决用于高吞吐量系统的有效使用的MAC处理的实施例。 一方面，公开了一种协议栈，其包括以下一个或多个：适配层，数据链路控制层，物理层和层管理器。 在另一方面，物理层反馈用于适应层处理。 在一个实施例中，物理层反馈用于分割。 在另一个实施例中，物理层反馈用于到一个或多个单播信道上的多播映射。 在另一方面，用于从第一站到第二站的传输的数据单元包括零个或多个完整的子数据单元，来自先前传输的零个或一个部分子数据单元，以及零个或一个部分子数据单元 填写数据单元。 在一个实施例中，可以使用指针来指示任何完整的子数据单元的位置。

公开(公告)号：US08401483B2

公开(公告)日：2013-03-19

申请号：US12712715

申请日：2010-02-25

申请人： Sanjiv Nanda ,  Saishankar Nandagopalan ,  Santosh P. Abraham ,  Jay Rodney Walton ,  Ernest Tadashi Ozaki

发明人： Sanjiv Nanda ,  Saishankar Nandagopalan ,  Santosh P. Abraham ,  Jay Rodney Walton ,  Ernest Tadashi Ozaki

IPC分类号： H04B1/00

CPC分类号： H04B15/00 ,  H01Q1/246 ,  H01Q3/24 ,  H04B7/0602 ,  H04B7/0615 ,  H04B7/0842 ,  H04W16/28 ,  H04W28/18

摘要： Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a directional antenna for use for communication based on various factors such as, e.g., whether the location or direction of a target station for communication is known, whether control frames or data frames are being exchanged, etc.

摘要翻译： 描述了使用全向和定向天线中的至少一个进行通信的技术。 站可以配备可选择用作全向天线或一个或多个定向天线的天线元件。 基站可以基于各种因素选择全向天线或定向天线，用于通信，例如，目的站通信的位置或方向是否已知，是否正在交换控制帧或数据帧， 等等

公开(公告)号：US08310996B2

公开(公告)日：2012-11-13

申请号：US11833927

申请日：2007-08-03

申请人： Sanjiv Nanda ,  Ashwin Sampath

发明人： Sanjiv Nanda ,  Ashwin Sampath

IPC分类号： H04W4/00 ,  H04J3/00

CPC分类号： H04W72/0426

摘要： A wireless media access control supports asynchronous communication and overlapping transmissions. Here, a wireless node may determine whether to request or schedule a transmission based on control messages it receives from neighboring nodes. In some implementations a scheduled transmission may be divided up into several segments so that a transmitting node may receive and transmit control messages between segments. In some implementations a monitoring period is defined after a scheduled transmission period to enable the transmitting node to acquire control information that may otherwise have been transmitted during the scheduled transmission period. In some implementations data and control information are transmitted over different frequency division multiplexed channels to enable concurrent transmission of the data and control information.

摘要翻译： 无线媒体访问控制支持异步通信和重叠传输。 这里，无线节点可以基于从相邻节点接收到的控制消息来确定是否请求或调度传输。 在一些实施方式中，调度的传输可以被划分成若干段，使得发射节点可以在段之间接收和发送控制消息。 在一些实施方式中，在调度的传输周期之后定义监视周期，以使得发送节点获取否则可能在调度的传输周期期间已经发送的控制信息。 在一些实施方式中，数据和控制信息通过不同的频分多路复用通道传输，以实现数据和控制信息的并发传输。

公开(公告)号：US08305948B2

公开(公告)日：2012-11-06

申请号：US11939379

申请日：2007-11-13

申请人： Shravan K. Surineni ,  Sanjiv Nanda

发明人： Shravan K. Surineni ,  Sanjiv Nanda

IPC分类号： H04H20/71

CPC分类号： H04W74/0816

摘要： Systems and methodologies are described that facilitate coordinating and conducting transmissions to multiple stations in a wireless communication system during a single transmission opportunity. A holder of a transmission opportunity can communicate a request-to-send message or a self-addressed clear-to-send message to one or more stations to establish the transmission opportunity. Subsequently, data transmissions with respective stations can be initiated by transmitting request-to-send messages to the respective stations. At each receiving station, the source address of a received request-to-send message is compared to the address of the holder of the transmission opportunity. If the addresses match for a given request-to-send message, the receiving station transmits a clear-to-send message to the holder of the transmission opportunity in response to the request-to-send message.

摘要翻译： 描述了在单个传输机会期间促进协调和执行无线通信系统中的多个站的传输的系统和方法。 发送机会的持有者可以将请求发送消息或自寻址清除发送消息传送到一个或多个站以建立传输机会。 随后，可以通过向相应站发送请求发送消息来启动与各个站的数据传输。 在每个接收站处，将接收的请求发送消息的源地址与发送机会的持有者的地址进行比较。 如果地址匹配给定的请求发送消息，则接收站响应于请求发送消息向发送机会的持有者发送清除发送消息。

公开(公告)号：US20120263137A1

公开(公告)日：2012-10-18

申请号：US13533725

申请日：2012-06-26

申请人： Jay Rodney Walton ,  Sanjiv Nanda

发明人： Jay Rodney Walton ,  Sanjiv Nanda

IPC分类号： H04W72/04

CPC分类号： H04W74/0808 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0091 ,  H04L12/66 ,  H04L27/2605 ,  H04L29/06 ,  H04L69/08 ,  H04L69/24 ,  H04L69/324 ,  H04W52/383 ,  H04W72/0406 ,  H04W72/12 ,  H04W74/00 ,  H04W74/06 ,  H04W74/0816 ,  H04W84/12

摘要： Techniques for MAC processing for efficient use of high throughput systems that may be backward compatible with various types of legacy systems are disclosed. In one aspect, a data frame is formed comprising a common portion for transmission in a format receivable by various stations, such as access points and remote stations. The data frame also comprises a dedicated portion, formatted for transmission to a specified remote station. In another aspect, the common portion is unsteered, and the dedicated portion is steered. In another aspect, an access point schedules an allocation in response to a data indication included in a common portion of a data frame transmitted from one remote station to another. In another aspect, a first station transmits a reference to a second station, which measures the reference and generates feedback therefrom.

摘要翻译： 公开了用于有效利用可能与各种类型的传统系统向后兼容的高吞吐量系统的MAC处理技术。 在一个方面，形成数据帧，其包括用于以各种站点接收的格式（例如接入点和远程站）进行传输的公共部分。 数据帧还包括格式化用于传输到指定的远程站的专用部分。 在另一方面，公共部分是非导向的，并且专用部分被转向。 在另一方面，接入点响应于包括在从一个远程站发送到另一个远程站的数据帧的公共部分中的数据指示来调度分配。 在另一方面，第一站发送对第二站的参考，第二站测量参考并从其产生反馈。

公开(公告)号：US08275377B2

公开(公告)日：2012-09-25

申请号：US11539059

申请日：2006-10-05

申请人： Sanjiv Nanda ,  Arnaud Meylan ,  Manoj M. Deshpande ,  Ranjith Jayaram

发明人： Sanjiv Nanda ,  Arnaud Meylan ,  Manoj M. Deshpande ,  Ranjith Jayaram

IPC分类号： H04W36/00 ,  H04W72/00 ,  H04W4/00 ,  H04B7/00 ,  G06F15/173

CPC分类号： H04W36/0083 ,  H04W36/0022 ,  H04W36/22 ,  H04W48/20

摘要： The disclosure is directed to an access terminal, and method for selecting an access point for handing off the access terminal. The access terminal may include a processor. The processor may be configured to access a list access points and select one of the access points on the list based on the current traffic state of the access terminal.

摘要翻译： 本公开涉及一种接入终端，以及用于选择用于切换接入终端的接入点的方法。 接入终端可以包括处理器。 处理器可以被配置为基于接入终端的当前业务状态来访问列表接入点并选择列表中的一个接入点。

公开(公告)号：US08175532B2

公开(公告)日：2012-05-08

申请号：US11758578

申请日：2007-06-05

申请人： Sanjiv Nanda ,  Saishankar Nandagopalan ,  Santosh Abraham ,  Jay Rodney Walton ,  Ernest T. Ozaki

发明人： Sanjiv Nanda ,  Saishankar Nandagopalan ,  Santosh Abraham ,  Jay Rodney Walton ,  Ernest T. Ozaki

IPC分类号： H04B1/00

CPC分类号： H04B15/00 ,  H01Q1/246 ,  H01Q3/24 ,  H04B7/0602 ,  H04B7/0615 ,  H04B7/0842 ,  H04W16/28 ,  H04W28/18

摘要： Techniques for using at least one of omni-directional and directional antennas for communication are described. A station may be equipped antenna elements selectable for use as an omni-directional antenna or one or more directional antennas. The station may select the omni-directional antenna or a directional antenna for use for communication based on various factors such as, e.g., whether the location or direction of a target station for communication is known, whether control frames or data frames are being exchanged, etc.

公开(公告)号：US08169982B2

公开(公告)日：2012-05-01

申请号：US11501128

申请日：2006-08-07

申请人： Aleksandar Gogic ,  Manoj M. Deshpande ,  Nikhil Jain ,  Sanjiv Nanda

发明人： Aleksandar Gogic ,  Manoj M. Deshpande ,  Nikhil Jain ,  Sanjiv Nanda

IPC分类号： H04W4/00

CPC分类号： H04W64/00 ,  G01S5/0252 ,  H04W36/32 ,  H04W48/08 ,  H04W84/12 ,  H04W88/06

摘要： The disclosure is directed to a wireless communication device and method for using the device. The wireless communications device may be used by accessing information in memory, the information relating to a first communications network. The information, along with one or more reference signals from a second communications network, is used to determine whether the wireless communications device is in the vicinity of the first communications network.

摘要翻译： 本公开涉及一种用于使用该设备的无线通信设备和方法。 无线通信设备可以通过访问存储器中的信息来使用，该信息与第一通信网络有关。 信息以及来自第二通信网络的一个或多个参考信号被用于确定无线通信设备是否在第一通信网络附近。

公开(公告)号：US20120057494A1

公开(公告)日：2012-03-08

申请号：US13293773

申请日：2011-11-10

申请人： Jay Rodney Walton ,  Sanjiv Nanda

发明人： Jay Rodney Walton ,  Sanjiv Nanda

IPC分类号： H04L12/26

CPC分类号： H04W74/0808 ,  H04W16/28 ,  H04W72/1231 ,  H04W84/18

摘要： Mesh Network Access Points (APs) points, including gateways and routers, are deployed over a geographic area. The APs monitor the communication channel for other carriers and transmit accordingly. The APs selectively co-transmit when other carriers are sensed, if the efficiency of the mesh network will improve. APs select a transmission rate based on observed carrier-to-interference ratios. APs use directional antennas to increase carrier-to-interference ratios and spectral efficiency. AP transmit schedules are adaptable and adjusted according to observed carrier-to-interference measurements.