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：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：US20120008570A1

公开(公告)日：2012-01-12

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： H04W72/12

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：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：US20110086679A1

公开(公告)日：2011-04-14

申请号：US12575942

申请日：2009-10-08

申请人： Junyi Li ,  Saurabh Tavildar ,  Alexsandar Jovicic ,  Thomas Richardson

发明人： Junyi Li ,  Saurabh Tavildar ,  Alexsandar Jovicic ,  Thomas Richardson

IPC分类号： H04B1/40

CPC分类号： H04W52/50 ,  H04W52/242 ,  H04W52/38

摘要： Methods and apparatus of varying transmit power of signals for increasing system throughput and spectral reuse in an unlicensed spectrum are disclosed. One method includes transmitting from a first mobile device to a second mobile device a request to send (RTS) signal having a first transmit data power level based on a channel gain between the first mobile device and the second mobile device, receiving, at the first mobile device, a clear to send (CTS) signal from the second mobile device, and transmitting data at the first transmit data power level from the first mobile device to the second mobile device.

公开(公告)号：US20100142365A1

公开(公告)日：2010-06-10

申请号：US12446728

申请日：2007-10-26

申请人： Thomas Richardson ,  Husheng Li ,  Junyi Li ,  Alexandar Leonidov ,  Rajiv Laroia ,  Ravi Palanki ,  Gavin Horn ,  Ashwin Sampath

发明人： Thomas Richardson ,  Husheng Li ,  Junyi Li ,  Alexandar Leonidov ,  Rajiv Laroia ,  Ravi Palanki ,  Gavin Horn ,  Ashwin Sampath

IPC分类号： H04W72/04 ,  H04J3/00

CPC分类号： H04L27/10 ,  H04L1/0045 ,  H04L5/0053 ,  H04L5/0091

摘要： Systems and methodologies are described that facilitate transmitting beacon symbols of a beacon message such that a sequence of symbols can satisfy a linear constraint over a field where the field elements can be identified with carriers. In this regard, a coding scheme can be applied to a beacon message; the coding scheme can produce a plurality of beacon symbols to transmit on given subcarriers. A receiving device of the beacon symbols can decode a beacon message by receiving less than the total number of symbols in a beacon message and determining the remaining symbol subcarriers based on the linear constraint. Thus, more efficient decoding of beacons is facilitated as well as resolving beacon ambiguity by figuring out which symbols satisfy linear constraints for the symbols, and resolving time and frequency shift by detecting an offset that would result in satisfaction of the linear constraint.

摘要翻译： 描述了促进发送信标消息的信标符号的系统和方法，使得符号序列可以满足可以用载波识别场元素的场的线性约束。 在这方面，编码方案可以应用于信标消息; 编码方案可以产生多个信标符号，以在给定子载波上进行传输。 信标符号的接收设备可以通过接收小于信标消息中的总符号数来解码信标消息，并且基于线性约束确定剩余的符号子载波。 因此，有助于信标的更有效的解码以及通过找出哪些符号满足符号的线性约束来解析信标模糊度，以及通过检测将导致满足线性约束的偏移来解决时间和频率偏移。