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：US20130083699A1

公开(公告)日：2013-04-04

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： H04W40/00 ,  H04W76/00 ,  H04L12/28

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：US20130065621A1

公开(公告)日：2013-03-14

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： H04W72/04 ,  H04W84/18

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：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：US08995356B2

公开(公告)日：2015-03-31

申请号：US12640336

申请日：2009-12-17

申请人： Xinzhou Wu ,  Cyril Measson ,  Nilesh Khude ,  Junyi Li

发明人： Xinzhou Wu ,  Cyril Measson ,  Nilesh Khude ,  Junyi Li

IPC分类号： H04W4/00 ,  H04W28/02 ,  H04L1/00

CPC分类号： H04W28/02 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0028 ,  H04L2001/0092

摘要： Methods and apparatus related to selecting and/or using different coding methods for a broadcast channel are described. The coding method to be used is selected as a function of an estimated level of congestion. Various methods and apparatus are well suited for use in peer to peer wireless communications systems including broadcast peer discovery channels. A wireless communications device, e.g., a mobile terminal supporting peer to peer signaling, detects peer discovery signals from other devices and estimates a level of congestion. The wireless communications device selects one of a plurality of alternative coding methods as a function of the estimated level of congestion. Two different coding methods which may be used, in some embodiments, vary in at least one of: coding rate, convolution code used, and amount of resources used. The wireless device transmits information indicating the selected coding method and coded peer discovery data in accordance with the selected coding method.

摘要翻译： 描述了与广播频道的选择和/或使用不同的编码方法有关的方法和装置。 选择要使用的编码方法作为估计的拥塞水平的函数。 各种方法和装置非常适用于包括广播对等体发现信道在内的对等无线通信系统。 诸如支持对等信令的移动终端的无线通信设备检测来自其他设备的对等体发现信号并估计拥塞程度。 无线通信设备根据估计的拥塞水平来选择多种替代编码方法之一。 在一些实施例中可以使用的两种不同的编码方法在以下至少之一中变化：编码率，使用的卷积码和所使用的资源量。 无线设备根据所选择的编码方法发送指示所选择的编码方法和编码对等体发现数据的信息。

公开(公告)号：US08938509B2

公开(公告)日：2015-01-20

申请号：US12898895

申请日：2010-10-06

申请人： Xinzhou Wu ,  Junyi Li ,  Vincent D. Park ,  Nilesh Khude

发明人： Xinzhou Wu ,  Junyi Li ,  Vincent D. Park ,  Nilesh Khude

IPC分类号： G06F15/16 ,  H04W28/24 ,  H04W84/18

CPC分类号： H04W28/24 ,  H04W84/18

摘要： Various methods and apparatus relate to sharing QoS privileges between devices having a higher service level subscription and devices having lower service level subscription. QoS privileges are associated with a QoS service level which is in turn tied to devices, e.g., based on a service level subscription of the device. Devices with higher service level subscription are entitled to superior QoS privileges than the devices with lower service level subscription. In various embodiments a first device with higher QoS service level provides, to a second device having lower QoS service level, information used to obtain a QoS privilege to which the first device is entitled. Thus the second device entitled to lower QoS privileges is provided with the superior QoS privileges on a limited basis, e.g., for communicating with the first device corresponding to the higher QoS service level.

摘要翻译： 各种方法和装置涉及在具有较高服务级别订阅的设备和具有较低服务级别订阅的设备之间共享QoS特权。 QoS权限与QoS服务级别相关联，QoS服务级别又依赖于设备，例如基于设备的服务级别订阅。 具有较高服务级别订阅的设备有权享受比具有较低服务级别订阅的设备更高的QoS权限。 在各种实施例中，具有较高QoS服务级别的第一设备向具有较低QoS服务级别的第二设备提供用于获得第一设备所授权的QoS特权的信息。 因此，有权降低QoS特权的第二设备在有限的基础上被提供有优越的QoS权限，例如用于与对应于较高QoS服务级别的第一设备进行通信。

公开(公告)号：US20110087768A1

公开(公告)日：2011-04-14

申请号：US12640336

申请日：2009-12-17

申请人： Xinzhou Wu ,  Cyril Measson ,  Nilesh Khude ,  Junyi Li

发明人： Xinzhou Wu ,  Cyril Measson ,  Nilesh Khude ,  Junyi Li

IPC分类号： G06F15/16

CPC分类号： H04W28/02 ,  H04L1/0009 ,  H04L1/0025 ,  H04L1/0028 ,  H04L2001/0092

摘要： Methods and apparatus related to selecting and/or using different coding methods for a broadcast channel are described. The coding method to be used is selected as a function of an estimated level of congestion. Various methods and apparatus are well suited for use in peer to peer wireless communications systems including broadcast peer discovery channels. A wireless communications device, e.g., a mobile terminal supporting peer to peer signaling, detects peer discovery signals from other devices and estimates a level of congestion. The wireless communications device selects one of a plurality of alternative coding methods as a function of the estimated level of congestion. Two different coding methods which may be used, in some embodiments, vary in at least one of: coding rate, convolution code used, and amount of resources used. The wireless device transmits information indicating the selected coding method and coded peer discovery data in accordance with the selected coding method.

摘要翻译： 描述了与广播频道的选择和/或使用不同的编码方法有关的方法和装置。 选择要使用的编码方法作为估计的拥塞水平的函数。 各种方法和装置非常适用于包括广播对等体发现信道在内的对等无线通信系统。 诸如支持对等信令的移动终端的无线通信设备检测来自其他设备的对等体发现信号并估计拥塞程度。 无线通信设备根据估计的拥塞水平来选择多种替代编码方法之一。 在一些实施例中可以使用的两种不同的编码方法在以下至少之一中变化：编码率，使用的卷积码和所使用的资源量。 无线设备根据所选择的编码方法发送指示所选择的编码方法和编码对等体发现数据的信息。

公开(公告)号：US20120089682A1

公开(公告)日：2012-04-12

申请号：US12898895

申请日：2010-10-06

申请人： Xinzhou Wu ,  Junyi Li ,  Vincent D. Park ,  Nilesh Khude

发明人： Xinzhou Wu ,  Junyi Li ,  Vincent D. Park ,  Nilesh Khude

IPC分类号： G06F15/16

CPC分类号： H04W28/24 ,  H04W84/18

摘要： Various methods and apparatus relate to sharing QoS privileges between devices having a higher service level subscription and devices having lower service level subscription. QoS privileges are associated with a QoS service level which is in turn tied to devices, e.g., based on a service level subscription of the device. Devices with higher service level subscription are entitled to superior QoS privileges than the devices with lower service level subscription. In various embodiments a first device with higher QoS service level provides, to a second device having lower QoS service level, information used to obtain a QoS privilege to which the first device is entitled. Thus the second device entitled to lower QoS privileges is provided with the superior QoS privileges on a limited basis, e.g., for communicating with the first device corresponding to the higher QoS service level.

摘要翻译： 各种方法和装置涉及在具有较高服务级别订阅的设备和具有较低服务级别订阅的设备之间共享QoS特权。 QoS权限与QoS服务级别相关联，QoS服务级别又依赖于设备，例如基于设备的服务级别订阅。 具有较高服务级别订阅的设备有权享受比具有较低服务级别订阅的设备更高的QoS权限。 在各种实施例中，具有较高QoS服务级别的第一设备向具有较低QoS服务级别的第二设备提供用于获得第一设备所授权的QoS特权的信息。 因此，有权降低QoS特权的第二设备在有限的基础上被提供有优越的QoS权限，例如用于与对应于较高QoS服务级别的第一设备进行通信。

公开(公告)号：US20110305208A1

公开(公告)日：2011-12-15

申请号：US12815922

申请日：2010-06-15

申请人： Xinzhou Wu ,  Junyi Li ,  Sanjay Shakkottai ,  Vincent D. Park ,  Nilesh Khude

发明人： Xinzhou Wu ,  Junyi Li ,  Sanjay Shakkottai ,  Vincent D. Park ,  Nilesh Khude

IPC分类号： H04W72/08

CPC分类号： H04W72/1247 ,  H04W28/24

摘要： Various methods and apparatus relate to controlling access to communications resources in a wireless communications system. Various described methods and apparatus are well suited for use in a peer to peer network in which resource access control is implemented in a distributed manner and wireless terminals compete for communications resources, e.g., compete for a peer to peer traffic segment. A wireless terminal generates QoS tokens within said wireless terminal at a rate which is a function of a QoS level associated with the wireless terminal and uses a generated token to control access to a communications resource. Generated tokens within the wireless terminal may be shared among the applications of the wireless terminal.

摘要翻译： 各种方法和装置涉及控制对无线通信系统中的通信资源的访问。 各种描述的方法和装置非常适合用于对等网络，其中以分布式方式实现资源访问控制，并且无线终端竞争通信资源，例如竞争对等业务段。 无线终端以与无线终端相关联的QoS级别的函数的速率在所述无线终端内生成QoS令牌，并使用生成的令牌来控制对通信资源的访问。 无线终端内的生成的令牌可以在无线终端的应用之间共享。

公开(公告)号：US08379630B2

公开(公告)日：2013-02-19

申请号：US12815922

申请日：2010-06-15

申请人： Xinzhou Wu ,  Junyi Li ,  Sanjay Shakkottai ,  Vincent D. Park ,  Nilesh Khude

发明人： Xinzhou Wu ,  Junyi Li ,  Sanjay Shakkottai ,  Vincent D. Park ,  Nilesh Khude

IPC分类号： H04L12/28

CPC分类号： H04W72/1247 ,  H04W28/24

摘要： Various methods and apparatus relate to controlling access to communications resources in a wireless communications system. Various described methods and apparatus are well suited for use in a peer to peer network in which resource access control is implemented in a distributed manner and wireless terminals compete for communications resources, e.g., compete for a peer to peer traffic segment. A wireless terminal generates QoS tokens within said wireless terminal at a rate which is a function of a QoS level associated with the wireless terminal and uses a generated token to control access to a communications resource. Generated tokens within the wireless terminal may be shared among the applications of the wireless terminal.

摘要翻译： 各种方法和装置涉及控制对无线通信系统中的通信资源的访问。 各种描述的方法和装置非常适合用于对等网络，其中以分布式方式实现资源访问控制，并且无线终端竞争通信资源，例如竞争对等业务段。 无线终端以与无线终端相关联的QoS级别的函数的速率在所述无线终端内生成QoS令牌，并使用生成的令牌来控制对通信资源的访问。 无线终端内的生成的令牌可以在无线终端的应用之间共享。