公开(公告)号：US09787777B2

公开(公告)日：2017-10-10

申请号：US12047713

申请日：2008-03-13

申请人： Junyi Li ,  Rajiv Laroia ,  Vincent D. Park ,  Thomas Richardson ,  Saurabh Tavildar ,  Xinzhou Wu

发明人： Junyi Li ,  Rajiv Laroia ,  Vincent D. Park ,  Thomas Richardson ,  Saurabh Tavildar ,  Xinzhou Wu

IPC分类号： H04L12/28 ,  H04L29/08 ,  H04W4/02 ,  H04W68/00 ,  H04W40/24

CPC分类号： H04L67/16 ,  H04L67/18 ,  H04W4/02 ,  H04W4/021 ,  H04W40/246 ,  H04W68/00 ,  Y02D30/40 ,  Y02D70/00 ,  Y02D70/20

摘要： Methods and apparatus for wireless communications in regional networks, e.g., ad hoc peer to peer networks, are described. Wireless communications devices transmit and monitor for presence indicator signals broadcast from other peer communications devices in its local vicinity. A wireless communications device maintains a list of discovered devices in its vicinity. A first wireless communications device transmits a paging signal directly over an airlink to a second communications device, which is on its list and to which it desires to send data units, e.g., user data in a peer to peer traffic segment. In response to a received paging response signal from the second device, the first device transmits data units, intended for the second device, to a third device, which acts as an intermediary node. The power level for the data unit signal is controlled to be lower than the power level used for the paging signal. FIG. 4

公开(公告)号：US08630281B2

公开(公告)日：2014-01-14

申请号：US11775793

申请日：2007-07-10

申请人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Thomas Richardson ,  Xinzhou Wu ,  Leonard Grokop

发明人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Thomas Richardson ,  Xinzhou Wu ,  Leonard Grokop

IPC分类号： H04J3/06

CPC分类号： H04L67/1061 ,  H04J3/0638 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0037 ,  H04L12/18 ,  H04L67/1093 ,  H04W8/005 ,  H04W56/001 ,  H04W56/0015 ,  H04W84/18

摘要： Systems and methodologies are described that facilitate identifying peers based upon encoded signals during peer discovery in a peer to peer network. For example, direct signaling that partitions a time-frequency resource into a number of segments can be utilized to communicate an identifier within a peer discovery interval; thus, a particular segment selected for transmission can signal a portion of the identifier, while a remainder can be signaled based upon tones communicated within the selected segment. Moreover, a subset of symbols within the resource can be reserved (e.g., unused) to enable identifying and/or correcting timing offset. Further, signaling can be effectuated over a plurality of peer discovery intervals such that partial identifiers communicated during each of the peer discovery intervals can be linked (e.g., based upon overlapping bits and/or bloom filter information).

摘要翻译： 描述了系统和方法，其便于在对等网络中的对等体发现期间基于编码信号来识别对等体。 例如，可以利用将时间 - 频率资源分割成多个段的直接信令来在对等设备发现间隔内传送标识符; 因此，选择用于传输的特定片段可以发送标识符的一部分，而可以基于在所选择的段内通信的音调来发信号通知剩余部分。 此外，可以保留资源内的符号子集（例如，未使用的）以使得能够识别和/或校正定时偏移。 此外，可以在多个对等点发现间隔上实现信令，使得可以链接每个对等设备发现间隔期间通信的部分标识符（例如，基于重叠位和/或布隆过滤器信息）。

公开(公告)号：US08521194B2

公开(公告)日：2013-08-27

申请号：US11775461

申请日：2007-07-10

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

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

IPC分类号： H04W68/00

CPC分类号： H04W76/14 ,  H04W68/00 ,  H04W72/02 ,  H04W76/11

摘要： Systems and methodologies are described that facilitate paging within a peer-to-peer communication network. A first wireless terminal monitors the paging channel of a wide area network. When a second wireless terminal intends to establish a peer-to-peer connection with the first wireless terminal, the second wireless terminal generates a paging message and transfers the message to the WAN, which routes the paging message to a base station. The base station uses its paging channel to send a paging message to the target first wireless terminal. The paging message indicates to the target first wireless terminal that the second wireless terminal intends to establish a peer-to-peer connection with the first wireless terminal. The paging message may further include parameters to be used to establish the peer-to-peer connection. Upon reception of the paging message, the second wireless terminal sends a signal directly to the first wireless terminal to start the direct peer-to-peer communication.

摘要翻译： 描述了促进对等通信网络内的寻呼的系统和方法。 第一无线终端监视广域网的寻呼信道。 当第二无线终端意图与第一无线终端建立点对点连接时，第二无线终端生成寻呼消息，并将消息传送到WAN，该寻呼消息将寻呼消息路由到基站。 基站使用其寻呼信道向目标第一无线终端发送寻呼消息。 寻呼消息向目标第一无线终端指示第二无线终端旨在建立与第一无线终端的对等连接。 寻呼消息还可以包括用于建立对等连接的参数。 在接收到寻呼消息时，第二无线终端直接向第一无线终端发送信号以开始直接对等通信。

公开(公告)号：US08331488B2

公开(公告)日：2012-12-11

申请号：US12578251

申请日：2009-10-13

申请人： Cyril Measson ,  Alberto Vigato ,  Saurabh Tavildar ,  Junyi Li ,  Thomas Richardson ,  Xinzhou Wu

发明人： Cyril Measson ,  Alberto Vigato ,  Saurabh Tavildar ,  Junyi Li ,  Thomas Richardson ,  Xinzhou Wu

IPC分类号： H04L27/04

CPC分类号： H04L1/0075

摘要： Non-coherent modulation is used to communicate coding information via pilot signals using a first subset of resources, and coherent modulation is used to generate data signals. This allows for a stronger global code while keeping individual signaling complexity low. First and second communications devices communicate information using a set of communications resources. By performing non-coherent demodulation on pilot signals received on a first subset of the set of communications resources coding information is recovered. First and second channel estimates are generated from the pilot signals received on the first subset of the communications resources. Coherent demodulation is performed on data signals received on a second subset of the set of communications resources using the first and second channel estimates and the coding information to recover information communicated by the first communications device and to recover separate information communicated by the second communications device.

摘要翻译： 非相干调制用于通过使用第一资源子集的导频信号来传送编码信息，并使用相干调制来产生数据信号。 这允许更强的全局代码，同时保持单个信令复杂度较低。 第一和第二通信设备使用一组通信资源来传送信息。 通过对在该组通信资源的第一子集上接收的导频信号执行非相干解调，编码信息被恢复。 从在通信资源的第一子集上接收的导频信号产生第一和第二信道估计。 对使用第一和第二信道估计和编码信息的通信资源集合的第二子集上接收的数据信号执行相干解调，以恢复由第一通信设备传送的信息，并恢复由第二通信设备传送的单独信息。

公开(公告)号：US08134924B2

公开(公告)日：2012-03-13

申请号：US11945746

申请日：2007-11-27

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： G08C15/00 ,  H04J3/16 ,  H04L12/56

CPC分类号： H04W72/1263 ,  H04W28/22

摘要： Methods and apparatus related to scheduling decisions of a peer to peer communications device for transmission into traffic intervals are described. A first peer to peer communications device maintains a set of information which allows it to base a scheduling decision for a current traffic interval upon prior performance in a prior traffic interval in which users of other connections were also operating. In some embodiments, the set of information includes a list of device or connection identifiers which the first peer to peer communications device has previously determined to have corresponded to a prior traffic interval in which the first peer to peer device had a low determined data rate. In some embodiments, the set of information includes: (i) a list of device or connection identifiers corresponding to prior traffic intervals and (ii) first peer to peer device data rate information associated with the prior traffic intervals

摘要翻译： 描述与对等通信设备的调度决策相关的传输到业务间隔的方法和设备。 第一对等通信设备维护一组信息，其允许其基于在其他连接的用户也在操作的先前业务间隔中的先前性能的当前业务间隔的调度决定。 在一些实施例中，该组信息包括第一对等通信设备先前已经确定已对应于第一对等设备具有低确定数据速率的先前业务间隔的设备或连接标识符的列表。 在一些实施例中，该组信息包括：（i）对应于先前业务间隔的设备或连接标识符的列表，以及（ii）与先前业务间隔相关联的第一对等设备数据速率信息

公开(公告)号：US20120057475A1

公开(公告)日：2012-03-08

申请号：US12875321

申请日：2010-09-03

申请人： Xinzhou Wu ,  Junyi Li ,  Thomas Richardson ,  Shailesh Patil

发明人： Xinzhou Wu ,  Junyi Li ,  Thomas Richardson ,  Shailesh Patil

IPC分类号： H04L12/26

CPC分类号： H04W99/00 ,  H04K3/226 ,  H04K3/45 ,  H04K3/84 ,  H04K2203/18 ,  H04W8/005 ,  H04W24/10

摘要： A method, an apparatus, and a computer program product are provided in which a signal is received on a resource, a signal quality of the signal is determined, a signal energy of the signal is determined, and the resource is jammed based on the signal quality and the signal energy by transmitting a signal on the resource.

摘要翻译： 提供了一种在资源上接收信号的方法，装置和计算机程序产品，确定信号的信号质量，确定信号的信号能量，并且基于信号卡住资源 通过在资源上传输信号来提高质量和信号能量。

公开(公告)号：US20120020234A1

公开(公告)日：2012-01-26

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： H04W24/00

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：US08077638B2

公开(公告)日：2011-12-13

申请号：US12146888

申请日：2008-06-26

申请人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Thomas Richardson ,  Xinzhou Wu ,  Sanjay Shakkottai

发明人： Junyi Li ,  Rajiv Laroia ,  Saurabh Tavildar ,  Thomas Richardson ,  Xinzhou Wu ,  Sanjay Shakkottai

IPC分类号： H04J1/16 ,  H04L12/56

CPC分类号： H04W4/20

摘要： Methods and apparatus related to scheduling traffic slots in a wireless communications system, e.g., an ad hoc peer to peer communications network are described. An implemented timing structure includes multiple traffic transmission slots and multiple request blocks with different priorities corresponding to a traffic transmission slot. A wireless terminal determines its own block priority level. If a wireless terminal's determined block priority level is the highest block priority level the wireless terminal is allowed to transmit a traffic transmission request in the highest traffic transmission request block; otherwise, the wireless terminal is restricted from transmitting a traffic transmission request in the highest priority request block. A wireless terminal monitors for request and/or request response activity corresponding to other connections high priority block signaling, and uses the collected information to determine its own block priority.

摘要翻译： 描述了在无线通信系统（例如，自组织对等通信网络）中调度业务时隙的方法和装置。 实施的定时结构包括多个业务传输时隙和具有与业务传输时隙对应的不同优先级的多个请求块。 无线终端确定其自身的块优先级。 如果无线终端确定的块优先级是最高块优先级，则允许无线终端在最高业务传输请求块中发送业务传输请求; 否则，无线终端被限制在最高优先级请求块中发送业务传输请求。 无线终端监视与其他连接高优先级块信令相对应的请求和/或请求响应活动，并且使用所收集的信息来确定其自身的块优先级。

公开(公告)号：US08072917B2

公开(公告)日：2011-12-06

申请号：US12268175

申请日：2008-11-10

申请人： Xinzhou Wu ,  Junyi Li ,  Sanjay Shakkottai ,  Rajiv Laroia ,  Saurabh Tavildar ,  Thomas Richardson ,  Jay Kumar Sundararajan

发明人： Xinzhou Wu ,  Junyi Li ,  Sanjay Shakkottai ,  Rajiv Laroia ,  Saurabh Tavildar ,  Thomas Richardson ,  Jay Kumar Sundararajan

IPC分类号： H04B7/185 ,  H04B7/204 ,  H04W4/00

CPC分类号： H04W52/265 ,  H04W52/343

摘要： Methods and apparatus relating to scheduling of air link resources, e.g., traffic segments, in wireless communications are described. Various described methods and apparatus are well suited to wireless peer to peer networks in which traffic scheduling is decentralized, e.g. an ad hoc peer to peer network. A first wireless terminal receives a transmission request and quality of service information from a second wireless terminal corresponding to a connection. The first wireless terminal decides not to receiver yield, determines a request response transmission power level as a function of the received quality of service information, and transmits, at the determined power level, a generated request response signal. By controllably adjusting the transmission power level of a request response, transmitter yielding decisions of lower priority links are impacted, since lower priority links measure and use received power level information corresponding to request responses of higher priority links in their transmitter yielding decisions.

摘要翻译： 描述了与无线通信中的空中链路资源（例如业务段）的调度有关的方法和装置。 各种描述的方法和装置非常适合于其中业务调度被分散的无线对等网络，例如， 一个特别的对等网络。 第一无线终端从对应于连接的第二无线终端接收传输请求和服务质量信息。 第一无线终端决定不接收收益，确定作为接收到的服务质量信息的函数的请求响应发送功率电平，并且以所确定的功率电平发送生成的请求响应信号。 通过可控地调整请求响应的发送功率电平，由于较低优先级的链路测量和使用对应于其发射机产生决定中的较高优先级链路的请求响应的接收功率电平信息，所以影响较低优先级链路的发射机出错决策。

公开(公告)号：US20090109949A1

公开(公告)日：2009-04-30

申请号：US11933009

申请日：2007-10-31

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

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

IPC分类号： H04J3/00

CPC分类号： H04W74/00 ,  H04W72/12

摘要： Methods and apparatus related to the communication of traffic in peer to peer communications are described. A peer to peer communications system includes traffic slots, and for a pair of devices having a connection a first transmission request resource and a second transmission request resource are associated with a traffic transmission interval of the traffic slot, the first request resource preceding the second request resource. The first request resource is used for the first device to communicate a request to transmit traffic to the second device. The second request resource is used to communicate a request from the second device to transmit traffic to the first device. One protocol calls for a second resource request to override a first resource request. In another protocol the second resource is used to communicate additional information corresponding to a first resource request, when a request is communicated in the first resource.

摘要翻译： 描述了与对等通信中流量通信有关的方法和设备。 对等通信系统包括业务时隙，并且对于具有连接的一对设备，第一传输请求资源和第二传输请求资源与业务时隙的业务传输间隔相关联，所述第二请求之前的第一请求资源 资源。 第一请求资源用于第一设备传送要向第二设备传输流量的请求。 第二请求资源用于传送来自第二设备的请求以将流量传送到第一设备。 一个协议要求第二个资源请求来覆盖第一个资源请求。 在另一协议中，当在第一资源中传送请求时，第二资源用于传送与第一资源请求对应的附加信息。