公开(公告)号：US08923910B2

公开(公告)日：2014-12-30

申请号：US12712629

申请日：2010-02-25

申请人： Xinzhou Wu ,  Junyi Li ,  Nilesh Khude ,  Sundar Subramanian

发明人： Xinzhou Wu ,  Junyi Li ,  Nilesh Khude ,  Sundar Subramanian

IPC分类号： H04B7/00 ,  H04W52/34 ,  H04W52/32 ,  H04W52/46

CPC分类号： H04W52/343 ,  H04W52/322 ,  H04W52/46

摘要： A wireless communications device supports a constant transmission power mode of operation and a time varying transmission power mode of operation for transmitting data, e.g., peer discovery data. The device determines an amount of network congestion and switches between the two modes of operation as a function of the determined amount of network congestion. Various described methods and apparatus are well suited for use in a peer to peer ad hoc wireless communications system in which a limited amount of air link resources are available for peer discovery signaling and the same peer discovery resources are, at times, used concurrently by multiple devices. When network congestion is low, the device operates in the constant transmission power mode. When network congestion is high, the device operates in the time varying power mode. Devices sharing a common peer discovery resource in a local area intentionally select different time varying transmission patterns.

摘要翻译： 无线通信设备支持恒定的发送功率操作模式和用于发送数据的时变发送功率操作模式，例如对等体发现数据。 该设备确定网络拥塞量，并根据确定的网络拥塞量来确定两种运营模式之间的切换。 各种描述的方法和装置非常适合用于对等自组织无线通信系统中，其中有限量的空中链路资源可用于对等体发现信令，同时有同样的对等体发现资源由多个 设备。 当网络拥塞低时，设备以恒定的传输功率模式工作。 当网络拥塞较高时，设备在时变功率模式下工作。 在本地区共享公共对等体发现资源的设备有意选择不同的时变传输模式。

公开(公告)号：US10098154B2

公开(公告)日：2018-10-09

申请号：US12832808

申请日：2010-07-08

申请人： Junyi Li ,  Xinzhou Wu ,  Sundar Subramanian ,  Nilesh Khude

发明人： Junyi Li ,  Xinzhou Wu ,  Sundar Subramanian ,  Nilesh Khude

IPC分类号： H04W74/08 ,  H04W76/11 ,  H04W76/02 ,  H04W84/18

摘要： A method of operating a wireless device includes selecting a connection identifier with a first node, receiving a scheduling control signal on a resource associated with the connection identifier, and determining a presence of a second node transmitting on the same resource associated with the connection identifier based on the received scheduling control signal.

公开(公告)号：US20130064089A1

公开(公告)日：2013-03-14

申请号：US13231417

申请日：2011-09-13

申请人： Xinzhou Wu ,  Thomas J. Richardson ,  Junyi Li ,  Sundar Subramanian ,  Nilesh Khude

发明人： Xinzhou Wu ,  Thomas J. Richardson ,  Junyi Li ,  Sundar Subramanian ,  Nilesh Khude

IPC分类号： H04W72/04 ,  H04W24/00

CPC分类号： H04W28/0289 ,  H04W74/08 ,  H04W84/18

摘要： Methods and apparatus for allocating traffic contention resource units in a wireless communications system in which decisions are made in a distributed manner are described. A wireless communications device, corresponding to a link, self allocates resource units for traffic contention. Decisions regarding initially acquiring resources, relinquishing acquired resources, and/or acquiring additional resources for traffic contention are based on detected levels of network congestion and/or detected changes in network congestion. A wireless communications device detects a level of network congestion and determines a number of resource units to acquire for traffic contention based on the detected level of network congestion.

摘要翻译： 描述在以分布式方式进行决定的无线通信系统中分配业务竞争资源单元的方法和装置。 对应于链路的无线通信设备自行分配用于流量争用的资源单元。 关于初始获取资源，放弃获得的资源和/或获取用于流量争用的额外资源的决定基于网络拥塞的检测水平和/或检测到的网络拥塞变化。 无线通信设备检测网络拥塞程度，并根据检测到的网络拥塞水平，确定获取用于流量争用的资源单元数量。

公开(公告)号：US20120008571A1

公开(公告)日：2012-01-12

申请号：US12832808

申请日：2010-07-08

申请人： Junyi Li ,  Xinzhou Wu ,  Sundar Subramanian ,  Nilesh Khude

发明人： Junyi Li ,  Xinzhou Wu ,  Sundar Subramanian ,  Nilesh Khude

IPC分类号： H04W72/12

CPC分类号： H04W74/0825 ,  H04W76/11 ,  H04W84/18

摘要： A method of operating a wireless device includes selecting a connection identifier with a first node, receiving a scheduling control signal on a resource associated with the connection identifier, and determining a presence of a second node transmitting on the same resource associated with the connection identifier based on the received scheduling control signal.

摘要翻译： 一种操作无线设备的方法包括：选择与第一节点的连接标识符，在与所述连接标识符相关联的资源上接收调度控制信号，以及确定在与所述连接标识符相关联的相同资源上发送的第二节点的存在 对接收到的调度控制信号。

公开(公告)号：US08630307B2

公开(公告)日：2014-01-14

申请号：US13231417

申请日：2011-09-13

申请人： Xinzhou Wu ,  Thomas J. Richardson ,  Junyi Li ,  Sundar Subramanian ,  Nilesh Khude

发明人： Xinzhou Wu ,  Thomas J. Richardson ,  Junyi Li ,  Sundar Subramanian ,  Nilesh Khude

IPC分类号： H04L12/413 ,  G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26

CPC分类号： H04W28/0289 ,  H04W74/08 ,  H04W84/18

摘要： Methods and apparatus for allocating traffic contention resource units in a wireless communications system in which decisions are made in a distributed manner are described. A wireless communications device, corresponding to a link, self allocates resource units for traffic contention. Decisions regarding initially acquiring resources, relinquishing acquired resources, and/or acquiring additional resources for traffic contention are based on detected levels of network congestion and/or detected changes in network congestion. A wireless communications device detects a level of network congestion and determines a number of resource units to acquire for traffic contention based on the detected level of network congestion.

摘要翻译： 描述在以分布式方式进行决定的无线通信系统中分配业务竞争资源单元的方法和装置。 对应于链路的无线通信设备自行分配用于流量争用的资源单元。 关于初始获取资源，放弃获得的资源和/或获取用于流量争用的额外资源的决定基于网络拥塞的检测水平和/或检测到的网络拥塞变化。 无线通信设备检测网络拥塞程度，并根据检测到的网络拥塞水平，确定获取用于流量争用的资源单元数量。

公开(公告)号：US20110205887A1

公开(公告)日：2011-08-25

申请号：US12712629

申请日：2010-02-25

申请人： Xinzhou Wu ,  Junyi Li ,  Nilesh Khude ,  Sundar Subramanian

发明人： Xinzhou Wu ,  Junyi Li ,  Nilesh Khude ,  Sundar Subramanian

IPC分类号： H04B7/00 ,  H04L12/56

CPC分类号： H04W52/343 ,  H04W52/322 ,  H04W52/46

摘要： A wireless communications device supports a constant transmission power mode of operation and a time varying transmission power mode of operation for transmitting data, e.g., peer discovery data. The device determines an amount of network congestion and switches between the two modes of operation as a function of the determined amount of network congestion. Various described methods and apparatus are well suited for use in a peer to peer ad hoc wireless communications system in which a limited amount of air link resources are available for peer discovery signaling and the same peer discovery resources are, at times, used concurrently by multiple devices. When network congestion is low, the device operates in the constant transmission power mode. When network congestion is high, the device operates in the time varying power mode. Devices sharing a common peer discovery resource in a local area intentionally select different time varying transmission patterns.

摘要翻译： 无线通信设备支持恒定的发送功率操作模式和用于发送数据的时变发送功率操作模式，例如对等体发现数据。 该设备确定网络拥塞量，并根据确定的网络拥塞量来确定两种运营模式之间的切换。 各种描述的方法和装置非常适合用于对等自组织无线通信系统中，其中有限量的空中链路资源可用于对等体发现信令，同时有同样的对等体发现资源由多个 设备。 当网络拥塞低时，设备以恒定的传输功率模式工作。 当网络拥塞较高时，设备在时变功率模式下工作。 在本地区共享公共对等体发现资源的设备有意选择不同的时变传输模式。

公开(公告)号：US08718548B2

公开(公告)日：2014-05-06

申请号：US13232170

申请日：2011-09-14

申请人： Christopher S. Chang ,  Sundar Subramanian ,  Xinzhou Wu ,  Nilesh Khude

发明人： Christopher S. Chang ,  Sundar Subramanian ,  Xinzhou Wu ,  Nilesh Khude

IPC分类号： H04B5/00 ,  H04W52/02

CPC分类号： H04W84/18 ,  H04W40/16 ,  H04W72/1231 ,  Y02D70/122 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/34

摘要： Methods and apparatus for efficiently scheduling links in wireless communications networks are described. Various described methods and apparatus are well suited for use in ad hoc wireless networks in which scheduling decisions are made in a distributed and/or decentralized manner. In some embodiments, the links in a network, e.g., in a peer to peer ad hoc network, are adaptively grouped based on comparable link channel gain. Exemplary signaling used, in some but not necessarily all embodiments, by devices to estimate channel gains include broadcast connection identifier signals and reverse broadcast connection identifier signals. Grouping links into sets based on comparable link channel gain, and selectively ordering the scheduling priorities of the different groups, is used to improve scheduling efficiency, e.g., decrease the likelihood that unnecessary yielding occurs.

摘要翻译： 描述了在无线通信网络中有效调度链路的方法和装置。 各种描述的方法和装置非常适用于其中以分布式和/或分散式进行调度决定的自组织无线网络。 在一些实施例中，网络中的链路，例如在对等自组织网络中，基于可比较的链路信道增益自适应地分组。 在一些但不一定所有实施例中，通过用于估计信道增益的设备使用的示例性信令包括广播连接标识符信号和反向广播连接标识符信号。 基于可比较的链路信道增益将链路分组成组，并且选择性地排序不同组的调度优先级，用于提高调度效率，例如，降低发生不必要的产生的可能性。

公开(公告)号：US08526317B2

公开(公告)日：2013-09-03

申请号：US12788487

申请日：2010-05-27

申请人： Mathieu Leconte ,  Xinzhou Wu ,  Rayadurgam Srikant ,  Sundar Subramanian ,  Nilesh Khude

发明人： Mathieu Leconte ,  Xinzhou Wu ,  Rayadurgam Srikant ,  Sundar Subramanian ,  Nilesh Khude

IPC分类号： G01R31/08

CPC分类号： H04W74/0816 ,  H04W84/18

摘要： A method of operating a wireless device is provided in which a number of neighboring nodes is estimated, a medium access priority to access a communication resource in a current timeslot is determined, and whether to transmit a scheduling control signal in the current timeslot is determined based on the number of neighboring nodes and the medium access priority.

摘要翻译： 提供一种操作无线设备的方法，其中估计多个相邻节点，确定当前时隙中访问通信资源的介质访问优先级，并且基于当前时隙中是否发送调度控制信号来确定 关于相邻节点的数量和介质访问优先级。

公开(公告)号：US09049694B2

公开(公告)日：2015-06-02

申请号：US13251849

申请日：2011-10-03

申请人： Xinzhou Wu ,  Saurabh Tavildar ,  Sundar Subramanian ,  Christopher S. Chang ,  Nilesh Khude

发明人： Xinzhou Wu ,  Saurabh Tavildar ,  Sundar Subramanian ,  Christopher S. Chang ,  Nilesh Khude

IPC分类号： H04W76/02 ,  H04W4/08

CPC分类号： H04W76/023 ,  H04W4/08 ,  H04W76/14

摘要： An apparatus, a method of the apparatus, and a computer program in the apparatus are provided in which the apparatus determines a group to which each of a plurality of wireless devices is associated based on signals received from the plurality of wireless devices. The apparatus selects a group for access to a wireless medium from a plurality of groups based on the group determined for each of the plurality of wireless devices and based on reducing interference with the plurality of wireless devices. Each of the plurality of groups has a different priority. The apparatus communicates using peer-to-peer communication on the wireless medium with a priority based on the selected group.

摘要翻译： 提供了该装置中的装置，装置的方法和计算机程序，其中，装置根据从多个无线装置接收的信号确定多个无线装置中的每一个相关联的组。 该设备基于为多个无线设备中的每一个确定的组，并且基于减少与多个无线设备的干扰，从多个组中选择用于接入无线介质的组。 多个组中的每一个具有不同的优先级。 该设备使用基于所选择的组的优先级在无线介质上使用对等通信进行通信。

公开(公告)号：US08437363B2

公开(公告)日：2013-05-07

申请号：US12966156

申请日：2010-12-13

申请人： Xinzhou Wu ,  Nilesh Khude ,  Sundar Subramanian

发明人： Xinzhou Wu ,  Nilesh Khude ,  Sundar Subramanian

IPC分类号： H04L12/43

CPC分类号： H04W74/002 ,  H04W72/10 ,  H04W74/04

摘要： Methods and apparatus for initiating a traffic transmission between a first device and a second device are disclosed. One method includes determining whether the first device has a receive priority or a transmit priority over the second device during a first data frame, determining whether the first device has data to transmit to the second device during the first data frame, transmitting, from the first device, a receive priority control signal during a receive priority control slot (Rxp) corresponding to the first data frame if the first device has the receive priority and no data to transmit, and transmitting, from the first device, a transmit priority control signal during a transmit priority control slot (Txp) corresponding to the first data frame if the first device has the transmit priority and data to transmit.

摘要翻译： 公开了用于启动第一设备和第二设备之间的业务传输的方法和设备。 一种方法包括在第一数据帧期间确定第一设备是否具有超过第二设备的接收优先级或发送优先级，确定第一设备是否具有在第一数据帧期间向第二设备发送的数据，从第一数据帧发送第一设备 设备，如果第一设备具有接收优先级并且没有要发送的数据，则在与第一数据帧相对应的接收优先级控制时隙（Rxp）期间的接收优​​先级控制信号，并且在第一设备期间从第一设备发送发送优先级控制信号 如果第一设备具有发送优先级和要发送的数据，则与第一数据帧相对应的发送优先级控制时隙（Txp）。