公开(公告)号：US20130182584A1

公开(公告)日：2013-07-18

申请号：US13350396

申请日：2012-01-13

申请人： Siva Theja Maguluri ,  Sundar Subramanian ,  Xinzhou Wu

发明人： Siva Theja Maguluri ,  Sundar Subramanian ,  Xinzhou Wu

IPC分类号： H04L12/26

CPC分类号： H04W76/023 ,  H04W76/14 ,  H04W84/18

摘要： Wireless communications devices with existing peer to peer links transmit, e.g., in accordance with a recurring schedule, quality of service related information corresponding to the existing links. The transmitted quality of service related information is, e.g., information indicating an obtained quality of service for the existing link. In some embodiments, quality of service related information is communicated in one of: a peer discovery signal, a connection ID broadcast signal and a contention resolution signal. A wireless communications device seeking to establish a new peer to peer link receives quality of service related information corresponding to existing links and estimates a quality a service achievable on the new desired potential link based on the received quality of service related information. The wireless communications device decides whether or not to establish the new peer to peer link based on its quality of service estimate.

摘要翻译： 具有现有对等链路的无线通信设备例如根据重复的调度发送与现有链路相对应的服务质量相关信息。 传输的服务质量相关信息是例如指示所获得的现有链路的服务质量的信息。 在一些实施例中，服务质量相关信息以对等体发现信号，连接ID广播信号和争用解决信号之一来传送。 寻求建立新的对等链路的无线通信设备接收与现有链路相对应的服务质量相关信息，并且基于所接收的服务质量相关信息来估计可能在新的期望潜在链路上实现的服务的质量。 无线通信设备基于其服务质量估计来决定是否建立新的对等链路。

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：US09037750B2

公开(公告)日：2015-05-19

申请号：US11874798

申请日：2007-10-18

申请人： Xinzhou Wu ,  Junyi Li ,  Saurabh Tavildar ,  Jay Kumar Sundararajan

发明人： Xinzhou Wu ,  Junyi Li ,  Saurabh Tavildar ,  Jay Kumar Sundararajan

IPC分类号： G06F15/16 ,  H04K1/10 ,  H04B7/00 ,  H04L5/00 ,  H04N5/76 ,  H04L27/26

CPC分类号： H04L5/0053 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0083 ,  H04L27/2643 ,  H04N5/76

摘要： An exemplary wireless communications device comprises a processor coupled to a memory and a wireless communications interface. The processor is configured to transmit a first transmission symbol at a first time index from a first set of time indices, and to transmit a second transmission symbol at a second time index different from the first time index from the first set of time indices, a portion of the first transmission symbol and a portion of the second transmission symbol including the same data. The first set of time indices is associated with a first device ID and includes at least one time index not contained in a second set of time indices associated with a second device ID, and the second set includes at least one time index not contained in the first set.

摘要翻译： 示例性无线通信设备包括耦合到存储器和无线通信接口的处理器。 处理器被配置为从第一组时间索引在第一时间索引处发送第一传输符号，并且以与第一时间索引不同的第二时间索引从第一组时间索引发送第二传输符号， 第一传输符号的部分和包括相同数据的第二传输符号的一部分。 第一组时间索引与第一设备ID相关联，并且包括不包含在与第二设备ID相关联的第二组时间索引中的至少一个时间索引，并且第二组包括不包含在第二设备ID中的至少一个时间索引 第一集

公开(公告)号：US08923897B2

公开(公告)日：2014-12-30

申请号：US13228981

申请日：2011-09-09

申请人： Shailesh Patil ,  Hua Wang ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

发明人： Shailesh Patil ,  Hua Wang ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

IPC分类号： H04W68/00 ,  H04W8/00 ,  H04W84/18

CPC分类号： H04W68/00 ,  H04W8/005 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

摘要： A method, a computer program product, and an apparatus are provided. The apparatus determines paging resources of a plurality of paging resources allocated for listening to paging messages. In addition, the apparatus transmits information indicating the allocated paging resources in a peer discovery signal. The apparatus may determine the paging resources on which to listen based on information received in peer discovery signals received from other wireless devices. The received information indicates the paging resources allocated to the other wireless devices.

摘要翻译： 提供了一种方法，计算机程序产品和装置。 该装置确定分配用于收听寻呼消息的多个寻呼资源的寻呼资源。 此外，该装置在对等体发现信号中发送指示分配的寻呼资源的信息。 该设备可以基于从其他无线设备接收的对等体发现信号中接收到的信息来确定要监听哪个寻呼资源。 所接收的信息指示分配给其他无线设备的寻呼资源。

公开(公告)号：US08861418B2

公开(公告)日：2014-10-14

申请号：US12166603

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： H04H20/71 ,  H04B7/216 ,  H04L12/28 ,  H04L12/56 ,  H04J3/26 ,  H04J3/17 ,  H04W8/18 ,  H04W4/08

CPC分类号： H04W4/08 ,  H04W8/186

摘要： Methods and apparatus related to group communications in a wireless communications system, e.g., a peer to peer wireless communications system, are described. Methods and apparatus directed to 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, are described. 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 in a decentralized manner. Some features and/or aspects are directed to the use of individual group member acknowledgement signaling in response to a transmitted group traffic data signal. By monitoring for anticipated individual group member acknowledgment signals and identifying members which have not signaled a positive acknowledgment, re-transmission can be directed and/or tailored to a subset of the group.

摘要翻译： 描述了与无线通信系统中的组通信相关的方法和装置，例如对等无线通信系统。 描述了针对封闭组的方法和装置，例如，其中组成员的数量在给定时间被固定并且对该组的一个或多个成员已知的那些。 各种实施例非常适合于分散的对等无线网络，其包括多个单独的业务资源，例如业务时隙和/或业务段，其可以以分散的方式独立地调度。 一些特征和/或方面针对响应于所发送的组业务数据信号的单独组成员确认信令的使用。 通过监视预期的个人组成员确认信号和识别尚未发出肯定确认的成员，可以针对该组的子集来定向和/或定制重新发送。

公开(公告)号：US08812680B2

公开(公告)日：2014-08-19

申请号：US13232193

申请日：2011-09-14

申请人： Shailesh Patil ,  Xinzhou Wu ,  Hua Wang ,  Junyi Li ,  Thomas J. Richardson

发明人： Shailesh Patil ,  Xinzhou Wu ,  Hua Wang ,  Junyi Li ,  Thomas J. Richardson

IPC分类号： G06F15/177 ,  H04W8/00 ,  H04W72/06

CPC分类号： H04W8/005 ,  H04W72/06

摘要： A method of operating a wireless device is provided in which the wireless device determines to use one grouping of peer discovery resources of a plurality of groupings of peer discovery resources based on one of a path loss or a distance to a base station. The plurality of groupings include a first grouping of resources having a first plurality of identical subsets of resources and a second grouping of resources having a second plurality of identical subsets of resources. Each of the first plurality of identical subsets of resources extends over at least one of a different time period or a different number of subcarriers than each of the second plurality of identical subsets of resources. The wireless device transmits a peer discovery signal on one subset of the identical subsets of said one grouping of peer discovery resources.

摘要翻译： 提供了一种操作无线设备的方法，其中无线设备基于路径损耗或到基站的距离之一确定使用多个对等体发现资源分组中的一个对等体发现资源分组。 多个分组包括具有第一多个相同的资源子集的资源的第一分组和具有第二多个相同的资源子集的资源的第二分组。 第一多个相同的资源子集中的每一个在与第二多个相同的资源子集中的每一个相比不同的时间段或不同数量的子载波中的至少一个中延伸。 无线设备在所述一组对等体发现资源的相同子集的一个子集上发送对等体发现信号。

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：US20130083679A1

公开(公告)日：2013-04-04

申请号：US13252084

申请日：2011-10-03

申请人： Dilip Krishnaswamy ,  Xinzhou Wu ,  Junyi Li

发明人： Dilip Krishnaswamy ,  Xinzhou Wu ,  Junyi Li

IPC分类号： H04W4/12 ,  H04W24/00

CPC分类号： H04L67/322 ,  G08G1/093 ,  H04L1/0082 ,  H04L67/12 ,  H04W56/0035

摘要： Methods and devices for processing and retransmitting highway communication system transmissions include determining a reliability of a received message and including an indication of the reliability in retransmitted transmissions. Reliability of received messages may be based on a signal strength of the received peer transmission, comparison of the signal strength to a distance to the transmitter based on message contents, the age of the received message, the signal quality of the received message, and other parameters. An indication of the determined reliability may be included in retransmissions of the message to enable other vehicles and receiver units in the highway communication system to benefit from the reliability determination. Message reliability may be used as part of prioritizing messages for processing. Messages may be processed according to priority so that high priority messages are processed before lower priority messages.

摘要翻译： 用于处理和重新发送高速公路通信系统传输的方法和设备包括确定接收到的消息的可靠性并且包括重发传输中的可靠性的指示。 接收到的消息的可靠性可以基于接收到的对等体传输的信号强度，基于消息内容，信号强度与到发射机的距离的比较，接收消息的年龄，接收到的消息的信号质量等 参数。 所确定的可靠性的指示可以包括在消息的重传中，以使公路通信系统中的其他车辆和接收机单元能够从可靠性确定中受益。 消息可靠性可以用作优先处理消息的一部分。 可以根据优先级对消息进行处理，以便在较低优先级消息之前处理高优先级消息。

公开(公告)号：US20130064214A1

公开(公告)日：2013-03-14

申请号：US13232823

申请日：2011-09-14

申请人： Shailesh Patil ,  Hua Wang ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

发明人： Shailesh Patil ,  Hua Wang ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

IPC分类号： H04W72/04

CPC分类号： H04W52/243 ,  H04L1/0002 ,  H04L2001/0092 ,  H04W52/383

摘要： A method of operating a first wireless device includes receiving a grant from a base station for peer-to-peer communication with a second wireless device using time-frequency resources utilized by a third wireless device for WWAN communication with the base station. In addition, the method includes receiving a transmit power for the peer-to-peer communication with the grant. The transmit power is determined based on an interference that can be caused to transmissions received by the base station from the third wireless device. Furthermore, the method includes communicating with the second wireless device at a power less than or equal to the received transmit power using peer-to-peer communication on the time-frequency resources.

摘要翻译： 一种操作第一无线设备的方法包括从基站接收用于与第二无线设备的对等通信的许可，所述第二无线设备使用由第三无线设备用于与所述基站进行WWAN通信的时频资源。 此外，该方法包括：接收用于与该授权相对应的通信的发送功率。 基于可能由基站从第三无线设备接收的传输引起的干扰来确定发射功率。 此外，该方法包括使用时间 - 频率资源上的对等通信以小于或等于所接收的发射功率的功率与第二无线设备进行通信。