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：US08605625B2

公开(公告)日：2013-12-10

申请号：US12417383

申请日：2009-04-02

申请人： Rajiv Laroia ,  Junyi Li ,  Vincent D. Park ,  Ying Wang ,  Aleksandar Jovicic

发明人： Rajiv Laroia ,  Junyi Li ,  Vincent D. Park ,  Ying Wang ,  Aleksandar Jovicic

IPC分类号： H04J1/16 ,  H04L12/66 ,  G06F15/177

CPC分类号： H04W8/005 ,  H04W8/186 ,  H04W48/14

摘要： Methods and apparatus supporting enhanced discovery operations in peer to peer networks are described. Peer discovery, based on direct peer to peer discovery between two mobile nodes can be somewhat limited, e.g., due to power limitations, processing power, and/or channel conditions. An access point, e.g., base station, monitors for and receives peer discovery signals conveying a set of identifiers from a wireless communications device. The access point retransmits at least one identifier in the set in a wireless peer to peer communications channel. Thus the access point effectively extends the peer discovery range for wireless communications devices utilizing the peer to peer network. Wireless communications devices can monitor for and recover the rebroadcast peer discovery signals from access points. Thus, via access point signaling a wireless communications device can be made situationally aware of other devices of interest which would be otherwise outside its discovery detection range.

摘要翻译： 描述了支持对等网络中增强发现操作的方法和装置。 基于两个移动节点之间的直接对等点发现的对等体发现可以受到一些限制，例如由于功率限制，处理能力和/或信道条件。 接入点，例如基站，监视和接收从无线通信设备传送一组标识符的对等体发现信号。 接入点在无线对等通信信道中重发集合中的至少一个标识符。 因此，接入点有效地扩展了利用对等网络的无线通信设备的对等体发现范围。 无线通信设备可以监视和恢复来自接入点的重播对等体发现信号。 因此，通过接入点信令，可以使无线通信设备在情境上意识到其他在其发现检测范围之外的感兴趣的设备。

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：US08514692B2

公开(公告)日：2013-08-20

申请号：US11251069

申请日：2005-10-14

申请人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Prashanth Hande

发明人： Rajiv Laroia ,  Junyi Li ,  Sundeep Rangan ,  Murari Srinivasan ,  Prashanth Hande

IPC分类号： H04J11/00 ,  H04B1/00

CPC分类号： H04B1/7103 ,  H04B1/7097 ,  H04B7/022 ,  H04B17/24 ,  H04B17/318 ,  H04B17/345 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04L5/023

摘要： Methods and apparatus for collecting, measuring, reporting and/or using information which can be used for interference control purposes. Wireless terminals measure signals transmitted from one or more base stations, e.g., base station sector transmitters. The measured signals may be, e.g., beacon signals and/or pilot signals. From the measured signals, the wireless terminal generates one or more gain ratios which provide information about the relative gain of the communications channels from different base station sectors to the wireless terminal. This information represents interference information since it provides information about the signal interference that will be caused by transmissions from other base station sectors relative to transmissions made by the base station sector to which the wireless terminal is attached. Based on the signal energy measurements and relative gains generated from the energy measures, reports are generated in accordance with the invention and sent to one or more base stations.

摘要翻译： 用于收集，测量，报告和/或使用可用于干扰控制目的的信息的方法和装置。 无线终端测量从一个或多个基站（例如，基站扇区发射机）发射的信号。 所测量的信号可以是例如信标信号和/或导频信号。 从所测量的信号中，无线终端产生一个或多个增益比，其提供关于来自不同基站扇区到无线终端的通信信道的相对增益的信息。 该信息表示干扰信息，因为它提供了关于由来自其他基站扇区的相对于由无线终端所附接的基站扇区所做的传输而引起的信号干扰的信息。 基于从能量测量产生的信号能量测量和相对增益，根据本发明生成报告并发送到一个或多个基站。

公开(公告)号：US08493922B2

公开(公告)日：2013-07-23

申请号：US12832787

申请日：2010-07-08

申请人： Junyi Li ,  Saurabh Tavildar ,  Nilesh Khude ,  Thomas Richardson ,  Rajiv Laroia

发明人： Junyi Li ,  Saurabh Tavildar ,  Nilesh Khude ,  Thomas Richardson ,  Rajiv Laroia

IPC分类号： H04W4/00

CPC分类号： H04W74/04 ,  H04W72/0453 ,  H04W72/10 ,  H04W84/18

摘要： A method of operating a wireless device includes determining a preferred subset of bands of a set of bands for communicating with a first node, communicating a scheduling request with the first node, and determining whether to schedule a data transmission on each band of the set of bands based on the preferred subset of bands and the scheduling request.

摘要翻译： 一种操作无线设备的方法包括确定用于与第一节点进行通信的一组频带中的频带的优选子集，与第一节点通信调度请求，以及确定是否在该组的每个频带上调度数据传输 基于频带的优选子集和调度请求的频带。

公开(公告)号：US08452317B2

公开(公告)日：2013-05-28

申请号：US11775849

申请日：2007-07-10

申请人： Junyi Li ,  Rajiv Laroia

发明人： Junyi Li ,  Rajiv Laroia

IPC分类号： H04B7/185 ,  H04B7/00

CPC分类号： H04W36/02 ,  H04W52/08 ,  H04W52/10 ,  H04W52/146 ,  H04W52/383 ,  H04W92/18

摘要： Methods and apparatus related to the sharing of wide area network (WAN) uplink bandwidth with peer to peer communication signaling usage are described. The base station regulates the level of interference from the peer to peer signaling by generating and transmitting peer to peer transmission power control signals intended for peer to peer wireless terminals in the local vicinity. A base station transmits into a downlink frequency band a signal, e.g., a beacon or broadcast channel signal, to be used by a peer to peer wireless terminal in controlling its peer to peer transmit power level into the corresponding uplink frequency band. The peer to peer wireless terminal receives and evaluates the base station signal. The determined information from the evaluation is used in determining whether or not peer to peer signal transmission is permitted and/or in determining a peer to peer transmission power level.

摘要翻译： 描述了与广域网（WAN）上行带宽共享的对等通信信令使用相关的方法和设备。 基站通过生成和发送用于当地附近的对等无线终端的对等传输功率控制信号来调节来自对等信令的干扰的等级。 基站将下行链路频带中的信号（例如，信标或广播信道信号）发送到对等无线终端，以将其对等发射功率电平控制到相应的上行链路频带。 对等无线终端接收并评估基站信号。 来自评估的确定的信息用于确定是否允许对等信号传输和/或确定对等传输功率级别。

公开(公告)号：US08437251B2

公开(公告)日：2013-05-07

申请号：US11333790

申请日：2006-01-17

申请人： Arnab Das ,  Rajiv Laroia ,  Junyi Li

发明人： Arnab Das ,  Rajiv Laroia ,  Junyi Li

IPC分类号： H04L12/26

CPC分类号： H04W72/0413 ,  H04W72/1252 ,  H04W72/1284

摘要： An uplink dedicated control channel reporting structure includes a plurality of different bit size reports, e.g. 1 bit, 3 bit and 4 bit reports, for reporting a wireless terminal's backlog information of uplink traffic request group queues. Smaller bit size reports are transmitted more frequently than larger reports. A 1 bit request report indicates whether or not there are any MAC frames of information to be communicated in a set of two request group queues. A 3 bit request report indicates an amount of backlog information corresponding to a first set of request group queues and a second set of request group queues. A 4 bit request report indicates an amount of backlog information corresponding to a set of request group queues. The 4 bit request report is capable of reporting information on any of a plurality of uplink traffic channel request group queues being maintained by the wireless terminal.

摘要翻译： 上行链路专用控制信道报告结构包括多个不同比特大小的报告，例如， 1位，3位和4位报告，用于报告无线终端的上行流量请求组队列的积压信息。 比较大的报告传送的位数较小的报告更频繁。 1位请求报告指示在一组两个请求组队列中是否存在要传送的任何MAC帧的信息。 3位请求报告指示对应于第一组请求组队列和第二组请求组队列的积压信息量。 4位请求报告指示与一组请求组队列对应的积压信息量。 4位请求报告能够报告由无线终端维护的多个上行链路业务信道请求组队列中的任一个的信息。

公开(公告)号：US08406282B2

公开(公告)日：2013-03-26

申请号：US11857750

申请日：2007-09-19

申请人： Junyi Li ,  Arnab Das ,  Rajiv Laroia

发明人： Junyi Li ,  Arnab Das ,  Rajiv Laroia

IPC分类号： H04J11/00

CPC分类号： H04L5/1469 ,  H04L5/0007 ,  H04L5/0048 ,  H04L27/2656

摘要： Systems and methodologies are described that facilitate generating and/or analyzing downlink transmission units in OFDM TDD environments. Strip OFDM symbols may be selectively inserted within downlink transmission units; for example, the position of strip OFDM symbols may vary from cell to cell. Further, the position may be a function of a characteristic of a cell (e.g., cell identifier) and/or an expected drift. Moreover, a strip OFDM symbol may be interjected at a location in a downlink transmission unit so as to mitigate alignment with disparate strip OFDM symbols in downlink transmission units associated with differing cells.

摘要翻译： 描述了有助于在OFDM TDD环境中生成和/或分析下行链路传输单元的系统和方法。 带状OFDM符号可以有选择地插入在下行链路传输单元内; 例如，带状OFDM符号的位置可以随单元而变化。 此外，该位置可以是小区的特性（例如，小区标识符）和/或预期漂移的函数。 此外，带状OFDM符号可以被插入在下行链路传输单元中的位置处，以便在与不同小区相关联的下行链路传输单元中减轻与不同条带OFDM符号的对准。

公开(公告)号：US08391879B2

公开(公告)日：2013-03-05

申请号：US12267888

申请日：2008-11-10

申请人： Junyi Li ,  Saurabh Tavildar ,  Rajiv Laroia ,  Gavin Horn ,  Ashwin Sampath ,  Xinzhou Wu

发明人： Junyi Li ,  Saurabh Tavildar ,  Rajiv Laroia ,  Gavin Horn ,  Ashwin Sampath ,  Xinzhou Wu

IPC分类号： H04W72/00

CPC分类号： H04W72/1278 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04L5/0091 ,  H04L67/104 ,  H04W72/1226 ,  H04W84/18

摘要： Methods and apparatus well suited to decentralized traffic scheduling in wireless peer to peer network are described. An individual wireless terminal corresponding to a peer to peer connection makes a transmitter yielding or receiver yielding decision for a traffic slot. Quality of service information is disseminated as part of the scheduling control signaling. A scheduling control signal, e.g., a traffic transmission request signal or a traffic transmission request response signal, includes a pilot portion and a quality of service information portion. The pilot facilitates the recovery of the quality of service information by a plurality of different devices which may have different channel conditions with respect to the transmitter of the scheduling control signal. The different devices may benefit from utilizing the recovered quality of service information in making a yielding decision regarding traffic signaling in a traffic segment.

摘要翻译： 描述了非常适合无线对等网络中分散业务调度的方法和设备。 与对等连接相对应的单个无线终端为业务时隙做出发射机屈服或接收机容易判定。 服务质量信息作为调度控制信令的一部分传播。 诸如业务传输请求信号或业务传输请求响应信号的调度控制信号包括导频部分和服务质量信息部分。 导频有助于通过可能具有与调度控制信号的发射机不同的信道条件的多个不同设备来恢复业务质量信息。 不同的设备可以受益于利用恢复的服务质量信息作出关于业务段中的业务信令的收益决定。

公开(公告)号：US08385826B2

公开(公告)日：2013-02-26

申请号：US12465938

申请日：2009-05-14

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

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

IPC分类号： H04B7/00

CPC分类号： H04W72/12 ,  H04W8/005 ,  H04W84/18 ,  H04W88/06

摘要： Methods and apparatus well suited for supporting communications over different ranges in, for example, a peer to peer wireless communications system, are described. In the peer to peer network at least some of the types of signals, e.g., peer discovery signals and/or paging signals, are transmitted with no closed loop power control. An exemplary peer to peer timing structure includes air link resources allocated for a particular type of signaling in which the resources are segmented into multiple blocks which do not overlap in time, different ones of the multiple blocks being associated with different ranges. The characteristics of the basic transmission units of the multiple blocks based on range are different, e.g., tone size and symbol width are different. A wireless communications device implements the peer to peer timing structure and uses resources from different range based blocks at different times. Data traffic transmission units may be the same regardless of the range.

摘要翻译： 描述了非常适合于支持例如对等无线通信系统中的不同范围的通信的方法和装置。 在对等网络中，在没有闭环功率控制的情况下，发送至少一些类型的信号，例如对等体发现信号和/或寻呼信号。 示例性的对等定时结构包括为特定类型的信令分配的空中链路资源，其中资源被分段成多个不在时间上重叠的块，多个块中的不同的块与不同的范围相关联。 基于范围的多个块的基本传输单元的特征是不同的，例如，音调尺寸和符号宽度不同。 无线通信设备实现对等定时结构，并且在不同时间使用来自不同基于范围的块的资源。 无论范围如何，数据业务传输单元可能相同。