公开(公告)号：US20130013181A1

公开(公告)日：2013-01-10

申请号：US13323237

申请日：2011-12-12

申请人： Ying Wang ,  Xinzhou Wu ,  Sundar Subramanian ,  Junyi Li ,  Thomas J. Richardson

发明人： Ying Wang ,  Xinzhou Wu ,  Sundar Subramanian ,  Junyi Li ,  Thomas J. Richardson

IPC分类号： G08G1/00

CPC分类号： G08G1/096791

摘要： A method, a computer program product, and an apparatus for wireless communication are provided. The apparatus adjusts a number of sets of identifiers in a plurality of sets of identifiers based on traffic information. In addition, the apparatus selects an identifier from a set of identifiers of the plurality of sets of identifiers based on the traffic information. Furthermore, the apparatus communicates using resources associated with the selected identifier. The traffic information may include at least one of direction of travel, map information, velocity, whether approaching an intersection, whether departing an intersection, location, a number of vehicles within a particular area, information from other vehicles, type of intersection, whether the intersection includes stop lights or stop signs, at least one computed value based on acquired traffic information, or information from other wireless devices.

摘要翻译： 提供了一种方法，计算机程序产品和用于无线通信的装置。 该装置基于交通信息来调整多组标识符中的多组标识符。 此外，该装置基于交通信息从多组标识符的一组标识符中选择一个标识符。 此外，设备使用与所选择的标识符相关联的资源进行通信。 交通信息可以包括行驶方向，地图信息，速度，是否接近交叉路口，离开交叉路口，位置，特定区域内的车辆数量，来自其他车辆的信息，交叉路口的类型中的至少一个， 交点包括停车灯或停车标志，基于所获取的交通信息的至少一个计算值，或来自其他无线设备的信息。

公开(公告)号：US20130010774A1

公开(公告)日：2013-01-10

申请号：US13542106

申请日：2012-07-05

申请人： Sundar Subramanian ,  Shihuan Liu ,  Xinzhou Wu ,  Thomas J. Richardson ,  Junyi Li

发明人： Sundar Subramanian ,  Shihuan Liu ,  Xinzhou Wu ,  Thomas J. Richardson ,  Junyi Li

IPC分类号： H04W28/00

CPC分类号： H04W72/12 ,  H04L69/161 ,  H04W74/0808 ,  H04W74/0816 ,  H04W76/00

摘要： Methods and apparatus for use in a wireless system are described where initiation of packet transmission is constrained in accordance to control actual packet transmission in a manner that reduces contention and possible collisions beyond that provided by lower layer resource contention mechanisms, e.g., 802.11 carrier sensing and/or transmission back-off timing mechanisms. Through higher level, e.g., MAC constraints, on packet transmission initiation, an air interface which employs carrier sensing can be used and controlled in a manner which reduces collisions and interference in applications where small packets, e.g., packets which can be transmitted in a fraction of the maximum permitted transmission time. The methods allow small packets in such systems to be transmitted on a periodic or semi-periodic basis in many cases.

摘要翻译： 描述了在无线系统中使用的方法和装置，其中分组传输的启动根据控制实际分组传输受到限制，其方式是减少竞争和可能的冲突超出由较低层资源争用机制提供的冲突，例如802.11载波检测和 /或传输回退定时机制。 通过更高的级别，例如MAC约束，在分组传输发起时，采用载波侦听的空中接口可以以减少小分组（例如可以以分数传输的分组）的应用中的冲突和干扰的方式被使用和控制 的最大允许传输时间。 这些方法允许这种系统中的小分组在许多情况下以周期性或半周期性的方式传输。

公开(公告)号：US20120114134A1

公开(公告)日：2012-05-10

申请号：US13217187

申请日：2011-08-24

申请人： Junyi Li ,  Mathew Scott Corson ,  Thomas J. Richardson ,  Frank A. Lane

发明人： Junyi Li ,  Mathew Scott Corson ,  Thomas J. Richardson ,  Frank A. Lane

IPC分类号： H04B3/00

CPC分类号： H04B5/06 ,  H04W72/0406 ,  H04W84/18

摘要： Methods and apparatus for controlling the communications between a wireless microphone receiver and one or more wireless microphone transmitters are described. In accordance with some embodiments a common control channel is used for communicating control signals between the wireless microphone receiver and one or more wireless microphone transmitters, while separate audio data channels are used to carry audio data traffic from each individual wireless microphone transmitter to the microphone receiver. In accordance with some other embodiment, a time division approach is used in which there are microphone transmit time periods and control signaling time periods. During the microphone transmit time periods, wireless microphone transmitters transmit audio data signals and, in some embodiment, control signals, to the wireless microphone receiver using separate frequency subbands within a frequency band. During control signaling time periods, the wireless microphone receiver transmits a control signal to a wireless microphone transmitter using the frequency band.

摘要翻译： 描述了用于控制无线麦克风接收机与一个或多个无线麦克风发射机之间的通信的方法和装置。 根据一些实施例，公共控制信道用于在无线麦克风接收机和一个或多个无线麦克风发射机之间传送控制信号，而单独的音频数据信道用于将来自每个单独的无线麦克风发射机的音频数据业务传送到麦克风接收机 。 根据一些其他实施例，使用时分方法，其中存在麦克风发送时间段和控制信令时间段。 在麦克风发送时间段期间，无线麦克风发送器在频带内使用分离的频率子带，向无线麦克风接收机发送音频数据信号，并且在一些实施例中向无线麦克风接收机发送控制信号。 在控制信令时间段期间，无线麦克风接收机使用频带向无线麦克风发射机发送控制信号。

公开(公告)号：US20100181528A1

公开(公告)日：2010-07-22

申请号：US12665004

申请日：2008-06-05

申请人： Thomas J. Richardson

发明人： Thomas J. Richardson

IPC分类号： H01M4/86

CPC分类号： H01M4/38 ,  C01B21/06 ,  C01B21/0602 ,  C01B21/0612 ,  C01B21/0635 ,  C01B21/0637 ,  C01B21/068 ,  C01B21/072 ,  H01M4/366 ,  H01M4/382 ,  H01M4/386 ,  H01M4/387 ,  H01M4/405 ,  H01M4/62 ,  H01M10/0525

摘要： A metal-ceramic composite (“cermet”) has been produced by a chemical reaction between a lithium compound and another metal. The cermet has advantageous physical properties, high surface area relative to lithium metal or its alloys, and is easily formed into a desired shape. An example is the formation of a lithium-magnesium nitride ceiniet by reaction of lithium nitride with magnesium. The reaction results in magnesium nitride grains coated with a layer of lithium. The nitride is inert when used in a battery. It supports the metal in a high surface area form, while stabilizing the electrode with respect to dendrite formation. By using an excess of magnesium metal in the reaction process, a cermet of magnesium nitride is produced, coated with a lithium-magnesium alloy of any desired composition. This alloy inhibits dendrite formation by causing lithium deposited on its surface to diffuse under a chemical potential into the bulk of the alloy.

摘要翻译： 金属 - 陶瓷复合材料（“金属陶瓷”）已经通过锂化合物与另一种金属之间的化学反应产生。 金属陶瓷具有有利的物理性能，相对于锂金属或其合金的高表面积，并且容易形成为所需形状。 一个例子是通过氮化锂与镁的反应形成一种锂 - 氮化镁电池。 该反应导致涂覆有一层锂的氮化镁颗粒。 氮化物在电池中使用时是惰性的。 它以高表面积形式支撑金属，同时稳定电极相对于枝晶形成。 通过在反应过程中使用过量的镁金属，制得氮化镁的金属陶瓷，涂覆有任何所需组成的锂 - 镁合金。 该合金通过使沉积在其表面上的锂在化学势下扩散到合金体中来抑制枝晶形成。

公开(公告)号：US06301268B1

公开(公告)日：2001-10-09

申请号：US09037847

申请日：1998-03-10

申请人： Rajiv Laroia ,  Thomas J. Richardson ,  Rudiger L. Urbanke

发明人： Rajiv Laroia ,  Thomas J. Richardson ,  Rudiger L. Urbanke

IPC分类号： H04J100

CPC分类号： H04L27/2614 ,  H04L27/2602

摘要： We describe an improved method for decreasing the probability of an unacceptably high peak-to-average power ratio in a signal to be transmitted by a Frequency Division Multiplexing (FDM) system, such as a discrete multitone (DMT) system. The method involves generating at least two alternative signal sequences, computing Fourier transforms of the respective alternative signal sequences, and selecting for transmission one of these sequences, based on the Fourier transform computations. More specifically, the selection of one sequence may be based, e.g., on the determination that the Fourier transform of that sequence has an acceptable peak power. Alternatively, a comparison may be made among the Fourier transforms of the respective signal sequences, and selection made of that sequence whose Fourier transform exhibits the lowest peak power.

摘要翻译： 我们描述了一种改进的方法，用于降低由诸如离散多音（DMT）系统的频分复用（FDM）系统传输的信号中不可接受的高峰值与平均功率比的概率。 该方法涉及产生至少两个替代信号序列，计算各个备选信号序列的傅里叶变换，并且基于傅立叶变换计算来选择这些序列中的一个。 更具体地说，一个序列的选择可以是例如基于该序列的傅里叶变换具有可接受的峰值功率的确定。 或者，可以在各个信号序列的傅里叶变换之间进行比较，以及由傅立叶变换表现出最低峰值功率的该序列的选择。

公开(公告)号：US09025466B2

公开(公告)日：2015-05-05

申请号：US13541984

申请日：2012-07-05

申请人： Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

发明人： Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li ,  Thomas J. Richardson

IPC分类号： H04Q7/28 ,  H04W24/00 ,  H04B17/00 ,  H04L12/26 ,  H04J3/14

CPC分类号： H04W24/00 ,  H04J3/14 ,  H04L5/0064 ,  H04L43/50 ,  H04W74/0808 ,  H04W74/0816 ,  H04W84/18

摘要： A transmission initiation interval timing structure is used in combination with a lower layer timing structure, e.g., physical layer timing structure. A device selects a subset of packet transmission initiation intervals and then limits initiation of packet transmission to those intervals thereby reducing the potential for collisions. Packet transmission may occur outside the initiation interval in which the transmission is initiated. In some embodiments, packet transmission length is intentionally limited to sizes which can be transmitted in a fraction of the amount of time the physical layer allows a single device to continuously transmit, e.g., in an amount of time which is equal to or less than the duration of a packet transmission initiation interval. This increases the probability that multiple devices will be able to successfully transmit small packets at short intervals on a regular basis even when carrier sensing techniques are used.

摘要翻译： 传输启动间隔定时结构与较低层定时结构结合使用，例如物理层定时结构。 设备选择分组传输启动间隔的子集，然后限制分组传输的开始到那些间隔，从而减少冲突的可能性。 分组传输可能发生在传输启动的发起间隔之外。 在一些实施例中，分组传输长度被有意地限制为可以在物理层允许单个设备连续发送的时间量的一小部分中传输的大小，例如，等于或小于 分组传输启动间隔的持续时间。 这增加了即使在使用载波感测技术的情况下，多个设备将能够以短时间间隔成功地发送小分组的概率。

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：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：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。

公开(公告)号：US06363121B1

公开(公告)日：2002-03-26

申请号：US09206843

申请日：1998-12-07

申请人： Bertrand M. Hochwald ,  Thomas Louis Marzetta ,  Thomas J. Richardson ,  Wim Sweldens ,  Rudiger L. Urbanke

发明人： Bertrand M. Hochwald ,  Thomas Louis Marzetta ,  Thomas J. Richardson ,  Wim Sweldens ,  Rudiger L. Urbanke

IPC分类号： H04K110

CPC分类号： H04L1/0618

摘要： Messages according to a method of wireless signal transmission are sent as sequences of unitary space-time signals. Each signal is representable as a matrix in which each column represents a respective transmitting antenna of a transmitting array, and each row represents a time segment. Each such matrix is proportional to a complex-valued matrix, all columns of which are mutually orthonormal. A new method for creating a constellation of signal matrices comprises providing an initial signal in the form of a complex, orthonormal matrix. The method further comprises generating a further plurality of matrices by a process that assures that each of the generated matrices is related to the initial matrix as a product of one or more multiplications of the initial matrix by one or more unitary matrices.

摘要翻译： 根据无线信号传输方法的消息作为单位时空信号的序列发送。 每个信号可以表示为矩阵，其中每列表示发射阵列的相应发射天线，并且每行表示时间段。 每个这样的矩阵与复值矩阵成正比，其中所有的列都是相互正交的。 用于创建信号矩阵星座的新方法包括以复数正交矩阵的形式提供初始信号。 该方法还包括通过一种过程生成另外的多个矩阵，该过程确保每个生成的矩阵与初始矩阵相关，作为初始矩阵的一个或多个乘法乘以一个或多个单位矩阵的乘积。