公开(公告)号：US08526900B2

公开(公告)日：2013-09-03

申请号：US13544169

申请日：2012-07-09

Applicant: Junyi Li ,  Ying Wang ,  Thomas Richardson ,  Aleksandar Jovicic

Inventor： Junyi Li ,  Ying Wang ,  Thomas Richardson ,  Aleksandar Jovicic

IPC: H04B7/00

CPC classification number: H03G3/3078 ,  H03G3/3089 ,  H04W52/383 ,  H04W52/52

Abstract: Techniques for performing automatic gain control (AGC) at a terminal in a wireless communication network are described. In an aspect, the terminal may use different receiver gain settings to receive different types of signals in different time intervals. The terminal may determine a receiver gain setting for each signal type and may use the receiver gain setting to receive signals of that signal type. In another aspect, the terminal may determine a receiver gain setting for a future time interval based on received power levels for peer terminals expected to transmit in that time interval. The terminal may measure received power levels of signals received from a plurality of terminals. The terminal may determine a set of terminals expected to transmit in the future time interval and may determine the receiver gain setting for the future time interval based on the measured received power levels.

Abstract translation: 描述了在无线通信网络中的终端处执行自动增益控制（AGC）的技术。 在一方面，终端可以使用不同的接收机增益设置来以不同的时间间隔接收不同类型的信号。 终端可以确定每个信号类型的接收机增益设置，并且可以使用接收机增益设置来接收该信号类型的信号。 在另一方面，终端可以基于期望在该时间间隔中发送的对等终端的接收功率电平来确定未来时间间隔的接收机增益设置。 终端可以测量从多个终端接收的信号的接收功率电平。 终端可以确定期望在未来时间间隔中发送的一组终端，并且可以基于测量的接收功率电平来确定未来时间间隔的接收机增益设置。

公开(公告)号：US08521893B2

公开(公告)日：2013-08-27

申请号：US12163316

申请日：2008-06-27

Applicant: Vincent D. Park ,  George Tsirtsis ,  Thomas Richardson

Inventor： Vincent D. Park ,  George Tsirtsis ,  Thomas Richardson

IPC: G06F15/16

CPC classification number: H04W8/005 ,  H04B17/27 ,  H04B17/327 ,  H04W84/18

Abstract: Various embodiments relate to wireless communications devices which support multiple modes of peer discovery operation. In some embodiments, the multiple modes of peer discovery operation include different modes which are associated with different rates of transmitting peer discovery information. In some embodiments, the multiple modes of peer discovery operation include different modes which are associated with different rates of monitoring peer discovery information. In various embodiments, a communications device determines whether or not to switch between different peer discovery modes of operation as a function of proximity to a location of interest. Proximity determinations may be, and sometimes are, based upon geographic position comparisons. Alternatively or in addition, proximity determinations may be, and sometimes are, based upon received signal strength measurements.

Abstract translation: 各种实施例涉及支持多种对等体发现模式的无线通信设备。 在一些实施例中，对等体发现操作的多种模式包括与传送对等体发现信息的不同速率相关联的不同模式。 在一些实施例中，对等体发现操作的多种模式包括与监视对等体发现信息的不同速率相关联的不同模式。 在各种实施例中，通信设备确定是否在不同的对等体发现操作模式之间切换，作为与感兴趣的位置的接近度的函数。 接近度测定可能是，有时是基于地理位置的比较。 或者或另外，邻近确定可以是并且有时是基于接收的信号强度测量。

公开(公告)号：US08514131B2

公开(公告)日：2013-08-20

申请号：US12875427

申请日：2010-09-03

Applicant: Aleksandar Jovicic ,  Cyril Measson ,  Thomas Richardson

Inventor： Aleksandar Jovicic ,  Cyril Measson ,  Thomas Richardson

IPC: G01S5/02

CPC classification number: G01S5/0252 ,  G01S5/0236 ,  G01S5/0278

Abstract: A mobile wireless device receives a set of fingerprint prediction maps, e.g., RF signal prediction maps, and corresponding probability metrics, e.g., indicative of map reliability. A fingerprint prediction map is an expected signal measurement map corresponding to a parameter or parameters to be measured and a area given a set of expected conditions. At different times, e.g., due to different conditions, a different map in the set of fingerprint prediction maps may be more likely to be accurate. The mobile wireless device updates the probability metrics, associated with different alternative maps in the set of maps, as a function of one or more of: known information, sensor readings, measurements, detected information, and position determination. The mobile wireless device determines its current position using fingerprint predication maps and one or more updated probability metrics.

Abstract translation: 移动无线设备接收一组指纹预测图，例如RF信号预测图，以及相应的概率度量，例如指示地图可靠性。 指纹预测图是与待测量的参数或参数对应的预期信号测量图，以及给定一组预期条件的区域。 在不同的时间，例如由于不同的条件，指纹预测图集合中的不同地图可能更准确。 根据以下中的一个或多个功能，移动无线设备更新与该组映射中的不同替代地图相关联的概率度量：已知信息，传感器读数，测量，检测信息和位置确定。 移动无线设备使用指纹预测映射和一个或多个更新的概率度量来确定其当前位置。

公开(公告)号：US08494007B2

公开(公告)日：2013-07-23

申请号：US11775803

申请日：2007-07-10

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

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

IPC: H04J1/02 ,  H04J3/06 ,  H04J3/12

CPC classification number: H04W8/005 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0053 ,  H04W8/26 ,  H04W72/02

Abstract: 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).

公开(公告)号：US08451961B2

公开(公告)日：2013-05-28

申请号：US11944197

申请日：2007-11-21

Applicant: Rajiv Laroia ,  Sundeep Rangan ,  Junyi Li ,  Thomas Richardson ,  Saurabh Tavildar

Inventor： Rajiv Laroia ,  Sundeep Rangan ,  Junyi Li ,  Thomas Richardson ,  Saurabh Tavildar

IPC: H03D1/04 ,  H03D1/06 ,  H03K5/01 ,  H03K6/04 ,  H04B1/10 ,  H04L1/00 ,  H04L25/08 ,  H04L27/26

CPC classification number: H04L27/2647 ,  H04B1/7103 ,  H04B7/0854 ,  H04B7/0857 ,  H04B2201/70702

Abstract: Various schemes for reducing effects of interference within communication systems are disclosed. A transmitter transmits a signal in a first time interval and a scrambled version of the signal in a second time interval, which does not overlap with the first time interval. A receiver receives a composite signal including a signal transmitted from the desired transmitter as well as signals from interferers in the first or the second time interval. The receiver determines a dominant interferer and obtains knowledge of signal scrambling done by the interferer as well as the desired transmitter by sensing an identification associated with the interferer or the desired transmitter. This knowledge is employed to determine coefficients for combining the received composite signals received in the first and the second time interval in order to recover the desired signal in a manner that maximizes the SNR associated with the desired signal or completely cancels the dominant interference.

Abstract translation: 公开了用于减少通信系统内的干扰影响的各种方案。 发射机以与第一时间间隔不重叠的第二时间间隔发送第一时间间隔中的信号和信号的加扰版本。 接收机在第一或第二时间间隔中接收包括从所需发射机发送的信号以及来自干扰源的信号的复合信号。 接收机确定主要干扰源，并且通过感测与干扰源或期望发射机相关联的标识来获得由干扰源以及所需发射机完成的信号加扰的知识。 该知识用于确定用于组合在第一和第二时间间隔中接收的接收的复合信号的系数，以便以最大化与期望信号相关联的SNR或完全抵消显性干扰的方式恢复期望信号。

公开(公告)号：US08422938B2

公开(公告)日：2013-04-16

申请号：US11764166

申请日：2007-06-15

Applicant: Junyi Li ,  Thomas Richardson ,  Rajiv Laroia

Inventor： Junyi Li ,  Thomas Richardson ,  Rajiv Laroia

IPC: H04H1/00

CPC classification number: H04W4/06 ,  H04L5/0007 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/261 ,  H04W72/005

Abstract: Systems and methodologies are described that facilitate transmitting at least two different types of information in a single signal, whereby the different types of information can be encoded and decoded independently. Thus, changes to one type of information does not affect a second type of information.

Abstract translation: 描述了促进在单个信号中发送至少两种不同类型的信息的系统和方法，由此可以独立地对不同类型的信息进行编码和解码。 因此，对一种类型的信息的改变不影响第二类型的信息。

公开(公告)号：US08326365B2

公开(公告)日：2012-12-04

申请号：US11933390

申请日：2007-10-31

Applicant: Thomas Richardson ,  Vladimir Parizhsky

Inventor： Thomas Richardson ,  Vladimir Parizhsky

IPC: H04M1/00

CPC classification number: H04W72/048 ,  H04B7/0491 ,  H04B7/0689 ,  H04B7/0842 ,  H04B17/382 ,  H04L5/0023 ,  H04L5/0041 ,  H04L27/2601

Abstract: Methods and apparatus for improved utilization of air link resources are discussed in wireless communications systems employing multi-sector base stations and wireless terminals with multiple antennas. Timing synchronization is maintained across the base station sectors, and the same set of tones are used in adjacent sectors. In a sector boundary region, which is typically a high interference region, a wireless terminal is set to a sector pair state and operated in a MIMO mode of operation, communicating with two adjacent base station antenna faces of the same base station concurrently, the two different adjacent base station antenna faces corresponding to different adjacent sectors. Thus, typically high interference sector boundary regions, are converted into high capacity regions by having the sectors coordinated and utilizing MIMO techniques.

Abstract translation: 在采用多扇区基站的无线通信系统和具有多个天线的无线终端中讨论了用于改善空中链路资源利用的方法和装置。 在基站扇区之间保持定时同步，并且在相邻扇区中使用同一组音调。 在通常是高干扰区域的扇区边界区域中，无线终端被设置为扇区对状态并且以MIMO操作模式操作，同时与同一基站的两个相邻基站天线面进行通信，二者 不同的相邻基站天线面对应于不同的相邻扇区。 因此，典型的高干扰扇区边界区域通过使扇区协调并利用MIMO技术而被转换成高容量区域。

公开(公告)号：US20120298521A1

公开(公告)日：2012-11-29

申请号：US13483028

申请日：2012-05-29

Applicant: David Thomas Richardson

Inventor： David Thomas Richardson

IPC: C25B15/08 ,  C25B1/00

CPC classification number: C25B15/08 ,  C25B1/08 ,  F02M25/12 ,  Y02E60/366

Abstract: Electrolyte supply tanks and bubbler tanks for oxyhydrogen gas generation systems are provided which eliminate the introduction of electrolyte and water into the induction systems of internal combustion engines. Both types of tanks are equipped with porous polyethylene gas diffusers which break up incoming gas into microscopic bubbles, thereby facilitating the absorption of electrolyte mist and droplets returning to the electrolyte supply tank and minimizing splashing of incoming gas in bubbler tanks. Air diffusers having an average pore diameter of about 70 μm are installed near the bottom of the electrolyte supply tanks, while air diffusers having an average pore diameter of about 35 μm are installed near the bottom of the bubbler tanks.

Abstract translation: 提供用于氢氧气体发生系统的电解液供应罐和起泡罐，其消除了将电解质和水引入内燃机的感应系统中。 两种类型的罐都装有多孔聚乙烯气体扩散器，将进入的气体分解成微小的气泡，从而有助于吸收电解液雾和液滴返回到电解质供应罐，并最大限度地减少入口气体在起泡罐中的飞溅。 平均孔径约70μm的空气扩散器安装在电解质供应罐的底部附近，而具有平均孔径约35μm的空气扩散器安装在起泡罐底部附近。

公开(公告)号：US08238861B2

公开(公告)日：2012-08-07

申请号：US12359595

申请日：2009-01-26

Applicant: Junyi Li ,  Ying Wang ,  Thomas Richardson ,  Aleksandar Jovicic

Inventor： Junyi Li ,  Ying Wang ,  Thomas Richardson ,  Aleksandar Jovicic

IPC: H04B7/00

CPC classification number: H03G3/3078 ,  H03G3/3089 ,  H04W52/383 ,  H04W52/52

Abstract: Techniques for performing automatic gain control (AGC) at a terminal in a wireless communication network are described. In an aspect, the terminal may use different receiver gain settings to receive different types of signals in different time intervals. The terminal may determine a receiver gain setting for each signal type and may use the receiver gain setting to receive signals of that signal type. In another aspect, the terminal may determine a receiver gain setting for a future time interval based on received power levels for peer terminals expected to transmit in that time interval. The terminal may measure received power levels of signals received from a plurality of terminals. The terminal may determine a set of terminals expected to transmit in the future time interval and may determine the receiver gain setting for the future time interval based on the measured received power levels for the set of terminals.

Abstract translation: 描述了在无线通信网络中的终端处执行自动增益控制（AGC）的技术。 在一方面，终端可以使用不同的接收机增益设置来以不同的时间间隔接收不同类型的信号。 终端可以确定每个信号类型的接收机增益设置，并且可以使用接收机增益设置来接收该信号类型的信号。 在另一方面，终端可以基于期望在该时间间隔中发送的对等终端的接收功率电平来确定未来时间间隔的接收机增益设置。 终端可以测量从多个终端接收的信号的接收功率电平。 终端可以确定期望在未来时间间隔中发送的一组终端，并且可以基于所测量的终端集合的接收功率电平来确定未来时间间隔的接收机增益设置。

公开(公告)号：US20120184301A1

公开(公告)日：2012-07-19

申请号：US13008965

申请日：2011-01-19

Applicant: Aleksandar Jovicic ,  Cyril Measson ,  Thomas Richardson

Inventor： Aleksandar Jovicic ,  Cyril Measson ,  Thomas Richardson

IPC: H04W24/00 ,  H04W88/02 ,  H04W64/00

CPC classification number: G01S5/0226 ,  G01S5/0081 ,  G01S5/0252 ,  G01S5/0263 ,  H04W24/10 ,  H04W64/00

Abstract: Methods and apparatus related to determining location of one or more mobile devices based on signals received by mobile device and signals received by fixed devices such as access points (APs) in a communications system are described. In accordance with various embodiments, mobile devices, e.g., peer devices, measure one or more signal characteristics, e.g., received signal power level, of signals received from peer devices and report this information along with information identifying the peer devices to which individual signal measurements correspond. The time of the signal measurements is also reported allowing a location determination server to time align signal measurements made by multiple different devices, e.g., mobile devices and access points, and use signals measurements from the multiple devices to determine the location of one or mobile devices, e.g., at one or more points in time, with more accuracy than if AP signal measurement alone were used.

Abstract translation: 描述了基于由移动设备接收的信号和由诸如通信系统中的接入点（AP）的固定设备接收的信号来确定一个或多个移动设备的位置的方法和装置。 根据各种实施例，移动设备（例如，对等设备）测量从对等设备接收的信号的一个或多个信号特性，例如接收的信号功率电平，并且将该信息与标识对等设备的信息一起报告给各个信号测量 对应。 还报告信号测量的时间，允许位置确定服务器时间对准由多个不同设备（例如，移动设备和接入点）进行的信号测量，并且使用来自多个设备的信号测量来确定一个或多个移动设备的位置 例如，在一个或多个时间点，比仅使用AP信号测量的精度更高。