公开(公告)号：US20090010179A1

公开(公告)日：2009-01-08

申请号：US11773947

申请日：2007-07-05

申请人： Rajiv Laroia ,  Junyi Li ,  Aleksandar Jovicic ,  Thomas Richardson ,  Xinzhou Wu

发明人： Rajiv Laroia ,  Junyi Li ,  Aleksandar Jovicic ,  Thomas Richardson ,  Xinzhou Wu

IPC分类号： H04L12/28 ,  H04B7/00 ,  H04Q7/20

CPC分类号： H04W8/005 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04W68/00 ,  H04W74/04 ,  H04W84/18

摘要： Methods and apparatus related to peer to peer communication networks are described. An active connection list is maintained by a wireless communications device supporting peer to peer communications. In various embodiments, the active connection identifier list being maintained is in addition to a list of discovered peers in the local vicinity. Paging signaling, e.g., peer to peer paging signaling, is used to establish active connections. Air link peer to peer traffic resources include traffic control resources and traffic data resources. A wireless communications device seeking to transmit on a traffic data resource transmits a traffic request signal on a traffic control resource. An active connection identifier is, in some embodiments, associated with a particular subset of traffic control resources. Thus, a wireless communications device monitors the portion or portions of the traffic control resource corresponding to its active connections for traffic request signals, but need not monitor other portions.

摘要翻译： 描述了与对等通信网络相关的方法和设备。 活动连接列表由支持对等通信的无线通信设备维护。 在各种实施例中，正在维护的活动连接标识符列表是在本地附近的发现的对等体的列表之外的。 寻呼信令，例如对等寻呼信令，用于建立主动连接。 空中链路对等​​流量资源包括流量控制资源和流量数据资源。 寻求在业务数据资源上发送的无线通信设备在业务控制资源上发送业务请求信号。 在一些实施例中，活动连接标识符与流量控制资源的特定子集相关联。 因此，无线通信设备监视与其活动连接相对应的业务控制资源的部分或部分以用于业务请求信号，但不需要监视其他部分。

公开(公告)号：US08902771B2

公开(公告)日：2014-12-02

申请号：US13250930

申请日：2011-09-30

申请人： Rajiv Laroia ,  Junyi Li ,  Thomas Richardson ,  Xinzhou Wu ,  Aleksandar Jovicic

发明人： Rajiv Laroia ,  Junyi Li ,  Thomas Richardson ,  Xinzhou Wu ,  Aleksandar Jovicic

IPC分类号： G01R31/08 ,  H04W28/22 ,  H04W92/18 ,  H04W72/12 ,  H04W48/08 ,  H04W52/16

CPC分类号： H04W72/1242 ,  H04W28/22 ,  H04W48/08 ,  H04W52/16 ,  H04W52/18 ,  H04W52/267 ,  H04W72/0473 ,  H04W72/12 ,  H04W76/14 ,  H04W92/18

摘要： Methods and apparatus related to peer to peer communication networks are described. Embodiments directed to methods and apparatus for establishing traffic data transmission rates and/or transmission power levels between wireless terminals is described. Embodiments direct to methods and apparatus of making decisions whether or not to transmit as a function of the received power of the received response signals are also described. Transmission of pilot signals after granting of a transmission request and a decision to transmit traffic data has been made occurs in some embodiments. Rate information to be used in determining a traffic rate may be received in response to the pilot signal from a peer to peer (P2P) device.

摘要翻译： 描述了与对等通信网络相关的方法和设备。 描述了用于在无线终端之间建立业务数据传输速率和/或传输功率电平的方法和装置的实施例。 还描述了根据接收到的响应信号的接收功率来决定是否发送的方法和装置的实施例。 在一些实施例中已经发生了在授予发送请求之后的导频信号的传输和传送业务数据的决定。 可以响应于来自对等（P2P）设备的导频信号来接收用于确定业务速率的速率信息。

公开(公告)号：US08711835B2

公开(公告)日：2014-04-29

申请号：US12964191

申请日：2010-12-09

申请人： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu

发明人： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu

IPC分类号： H04J3/06 ,  H04B7/212

CPC分类号： H04L7/0054 ,  H04L27/2607 ,  H04W48/08 ,  H04W56/00 ,  H04W92/18

摘要： Systems and methodologies are described that facilitates mitigating the affects of asynchronous behavior when transmitting a data signal. According to various aspects, the system and methods are employed for selectively appending an appropriate time-shifting mechanism to a data signal in order to rectify the negative affects of asynchronous time behavior during a logical data burst.

摘要翻译： 描述了在传输数据信号时有助于减轻异步行为的影响的系统和方法。 根据各个方面，采用系统和方法选择性地将适当的时移机制附加到数据信号，以便在逻辑数据突发期间纠正异步时间行为的负面影响。

公开(公告)号：US08694662B2

公开(公告)日：2014-04-08

申请号：US12166594

申请日：2008-07-02

申请人： Xinzhou Wu ,  Saurabh Tavildar ,  Junyi Li ,  Rajiv Laroia

发明人： Xinzhou Wu ,  Saurabh Tavildar ,  Junyi Li ,  Rajiv Laroia

IPC分类号： G06F15/16 ,  H04L1/00

CPC分类号： H04L12/1881 ,  H04L12/1886 ,  H04L12/189 ,  H04W4/08 ,  H04W72/10 ,  H04W84/18

摘要： Methods and apparatus supporting group communications in a peer to peer wireless network are described. Methods and apparatus are directed to implementations with closed groups, e.g., where the number of group members are fixed at a given time and known to one or more members of the group. Various embodiments are well suited to decentralized peer to peer wireless networks including a plurality of individual traffic resources, e.g., traffic slots and/or traffic segments, which may be independently scheduled. Approaches for implementing distributed scheduling for traffic air link resources which may carry group traffic signals and/or peer to peer traffic signals are described. Various aspects are directed to the transmitter side including: group traffic transmission request transmissions, reception of request response signaling, transmitter yielding decisions, group rate determination and/or group traffic data signaling. Other aspects are directed to the receiver side including: reception of group traffic transmission request signals, receiver yielding decisions, transmitting group request responses signals, and/or receiving group traffic signaling.

摘要翻译： 描述了对等无线网络中支持组通信的方法和装置。 方法和装置涉及具有封闭组的实现，例如，其中组成员的数量在给定时间是固定的并且对于该组的一个或多个成员而言是已知的。 各种实施例非常适合于分散的对等无线网络，包括多个单独的业务资源，例如可以独立调度的业务时隙和/或业务段。 描述了可能携带组交通信号和/或对等业务信号的用于业务空中链路资源的分布式调度的方法。 各个方面涉及发射机侧，包括：组业务传输请求传输，请求响应信令的接收，发射机发射决定，组速率确定和/或组业务数据信令。 其他方面针对接收机侧，包括：接收群组业务传输请求信号，接收机产生决定，发送组请求响应信号和/或接收群组业务信令。

公开(公告)号：US08520524B2

公开(公告)日：2013-08-27

申请号：US12267905

申请日：2008-11-10

申请人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Xinzhou Wu

发明人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Xinzhou Wu

IPC分类号： H04L12/26

CPC分类号： H04W72/1231 ,  H04L43/08 ,  H04W72/1278

摘要： Methods and apparatus for making communications decisions are described. In some embodiments, a method includes recovering a quality of service level from a transmission request response signal and making a decision whether or not to transmit traffic data based on the recovered quality of service level. In other embodiments a method includes recovering a first quality of service level from a first transmission request response signal which is in response to a first traffic transmission request signal, and making a decision, based on the recovered first quality of service level, whether or not to transmit a second transmission request response signal in response to a second traffic transmission request signal. In some embodiments, the phase of the transmission request response signal is used to communicate the quality of service level. The device transmitting the transmission request response may also transmit pilots which can be used as phase reference signals.

摘要翻译： 描述通信决策的方法和装置。 在一些实施例中，一种方法包括从传输请求响应信号中恢复服务质量水平，并基于恢复的服务质量水平决定是否传送业务数据。 在其他实施例中，一种方法包括从响应于第一业务传输请求信号的第一传输请求响应信号恢复第一服务质量水平，并且基于恢复的第一服务质量水平做出决定 响应于第二业务传输请求信号发送第二传输请求响应信号。 在一些实施例中，传输请求响应信号的相位用于传达服务质量水平。 发送发送请求响应的装置也可以发送可用作相位参考信号的导频。

公开(公告)号：US08259743B2

公开(公告)日：2012-09-04

申请号：US12168662

申请日：2008-07-07

申请人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Xinzhou Wu

发明人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Xinzhou Wu

IPC分类号： H04L12/28

CPC分类号： H04L1/0002 ,  H04L1/0025 ,  Y02D70/10 ,  Y02D70/20

摘要： An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protocol implemented among local peer devices. In a traffic slot, a transmitter voluntarily backs down on the transmitter power as a smaller packet will require much lower signal-to-noise ratio. This will improve the signal energy per bit per noise power density for the transmission as well as minimize the interference caused to other wireless communications happening in the same spectrum.

公开(公告)号：US08139531B2

公开(公告)日：2012-03-20

申请号：US12168704

申请日：2008-07-07

申请人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Xinzhou Wu

发明人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Xinzhou Wu

IPC分类号： H04W4/00

CPC分类号： H04L1/0002 ,  H04L1/0025 ,  Y02D70/10 ,  Y02D70/20

摘要： An improved mechanism is provided that facilitates transmission of small packets within an ad hoc peer-to-peer network. A small packet is identified to a receiver within a control channel so that its lower power can be considered in an interference management protocol implemented among local peer devices. In a traffic slot, a transmitter voluntarily backs down on the transmitter power as a smaller packet will require much lower signal-to-noise ratio. This will improve the signal energy per bit per noise power density for the transmission as well as minimize the interference caused to other wireless communications happening in the same spectrum.

公开(公告)号：US08078110B2

公开(公告)日：2011-12-13

申请号：US12168721

申请日：2008-07-07

申请人： Junyi Li ,  Xinzhou Wu ,  Rajiv Laroia ,  Aleksandar Jovicic

发明人： Junyi Li ,  Xinzhou Wu ,  Rajiv Laroia ,  Aleksandar Jovicic

IPC分类号： H04B1/00

CPC分类号： H04B7/086 ,  H04W72/0406 ,  H04W72/046 ,  H04W72/08 ,  H04W84/18

摘要： One feature provides for establishing an ad hoc peer-to-peer network over an existing channel allocation for another network. To mitigate interference between multiple peer-to-peer devices, a plurality of receiver chains in a receiver device may be configured with beamforming coefficients so as to focus reception in the direction of an intended signal from a transmitter device while minimizing reception from other directions. Similarly, the receiver device may also use a plurality of antennas and a transmitter chain to beamform in the direction of the transmitter device, thereby focusing its transmission toward the transmitter device. The receiver device may also notify nearby devices that it is employing a plurality of receive antennas. This information can be used by the nearby devices to more intelligently perform transmitter yielding. By utilizing beamforming information to make the transmitter and/or receiver yielding decision, better interference mitigation may be achieved.

摘要翻译： 一个特征提供了通过用于另一网络的现有信道分配来建立自组织对等网络。 为了减轻多个对等设备之间的干扰，接收机设备中的多个接收器链可以被配置成具有波束成形系数，以便在来自发射机设备的预期信号的方向上聚焦接收，同时最小化从其他方向的接收。 类似地，接收机设备还可以使用多个天线和发射机链在发射机设备的方向上波束成形，从而将其传输集中到发射机设备。 接收机设备还可以通知附近的设备它正在采用多个接收天线。 该信息可被附近的设备用于更智能地执行发射机的收发。 通过利用波束成形信息来使发射机和/或接收机产生决定，可以实现更好的干扰减轻。

公开(公告)号：US08041375B2

公开(公告)日：2011-10-18

申请号：US11930121

申请日：2007-10-31

申请人： Rajiv Laroia ,  Junyi Li ,  Thomas Richardson ,  Xinzhou Wu ,  Aleksandar Jovicic

发明人： Rajiv Laroia ,  Junyi Li ,  Thomas Richardson ,  Xinzhou Wu ,  Aleksandar Jovicic

IPC分类号： H04B7/00

CPC分类号： H04W72/1242 ,  H04W28/22 ,  H04W48/08 ,  H04W52/16 ,  H04W52/18 ,  H04W52/267 ,  H04W72/0473 ,  H04W72/12 ,  H04W76/14 ,  H04W92/18

摘要： Methods and apparatus related to peer to peer communication networks are described. Embodiments directed to methods and apparatus for establishing traffic data transmission rates and/or transmission power levels between wireless terminals is described. Embodiments direct to methods and apparatus of making decisions whether or not to transmit as a function of the received power of the received response signals are also described. Transmission of pilot signals after granting of a transmission request and a decision to transmit traffic data has been made occurs in some embodiments. Rate information to be used in determining a traffic rate may be received in response to the pilot signal from a peer to peer (P2P) device.

摘要翻译： 描述了与对等通信网络相关的方法和设备。 描述了用于在无线终端之间建立业务数据传输速率和/或传输功率电平的方法和装置的实施例。 还描述了根据接收到的响应信号的接收功率来决定是否发送的方法和装置的实施例。 在一些实施例中已经发生了在授予发送请求之后的导频信号的传输和传送业务数据的决定。 可以响应于来自对等（P2P）设备的导频信号来接收用于确定业务速率的速率信息。

公开(公告)号：US20090109850A1

公开(公告)日：2009-04-30

申请号：US11932934

申请日：2007-10-31

申请人： Junyi Li ,  Rajiv Laroia ,  Thomas Richardson ,  Xinzhou Wu

发明人： Junyi Li ,  Rajiv Laroia ,  Thomas Richardson ,  Xinzhou Wu

IPC分类号： H04L12/28

CPC分类号： H04W72/1242 ,  H04W72/1231 ,  H04W74/00

摘要： A peer to peer communications system implements scheduling of traffic intervals in a distributed manner utilizing connection priority and interference information. A peer to peer timing structure includes a user scheduling interval, with ordered transmission request and response intervals, and an associated traffic interval. The priority associated with a request of an early interval is higher than the priority of a request of a later interval. A first device, connected to a second device, makes a decision as to whether or not to yield the traffic interval as a function of estimated interference that it will impose on higher priority connection receivers if it transmits during the traffic interval. The second device makes a decision as to whether or not to transmit a positive transmission request response signal as a function of a generated received signal quality value, based on received requests for its own and for higher priority connections.

摘要翻译： 对等通信系统利用连接优先级和干扰信息，以分布式实现业务间隔调度。 对等定时结构包括具有有序传输请求和响应间隔的用户调度间隔以及相关联的业务间隔。 与早期间隔的请求相关联的优先级高于稍后间隔的请求的优先级。 连接到第二设备的第一设备决定是否产生作为估计干扰的业务间隔的函数，如果它在业务间隔期间发送，则将对其施加在较高优先级的连接接收机上。 第二装置基于接收到的对其自身的请求和对于较高优先级的连接来决定是否发送作为生成的接收信号质量值的函数的正传输请求响应信号。