公开(公告)号：EP1384217A4

公开(公告)日：2009-09-23

申请号：EP02713824

申请日：2002-03-07

Applicant: MOTOROLA INC

Inventor： SHI QICAI ,  HUANG JIAN ,  CALLAWAY EDGAR H JR

IPC: H04L29/08 ,  H04L12/56 ,  H04L29/00 ,  G08C17/02

CPC classification number: H04W48/08 ,  H04W4/12 ,  H04W52/0219 ,  H04W76/02 ,  H04W84/18 ,  H04W88/04 ,  Y02D70/00

Abstract: A low power consumption protocol for low power communication devices attached to an asynchronous network is described. In this protocol, a communication device is used as a high communication duty cycle Mediation Device (MD), thus permitting other communication devices to use a low communication duty cycle framing structure. The MD functions as a storage and retrieval service for messages between two devices when one device is not able to communicate. When the previously unavailable device becomes available, it can check in with the MD to retrieve any missed messages and respond to these messages accordingly. In a communication network, each of the low power communication devices can be configured to behave as MD's for a small amount of time. Sharing this responsibility among all communication devices in the network allows each device to maintain an low average communication duty cycle. This technique is applicable to a low power, low cost, zero-configuring, self-organizing, asynchronous network.

公开(公告)号：WO2010088598A3

公开(公告)日：2010-11-25

申请号：PCT/US2010022726

申请日：2010-02-01

Applicant: MOTOROLA INC ,  KYPEROUNTAS SPYROS ,  CORREAL NEIYER S ,  SHI QICAI

Inventor： KYPEROUNTAS SPYROS ,  CORREAL NEIYER S ,  SHI QICAI

IPC: H04W16/10 ,  H04W16/14

CPC classification number: H04W72/02 ,  H04W16/14 ,  H04W48/16

Abstract: A method, wireless device, and information processing system dynamically update spectrum sensing groups in a wireless communication system. A set of wireless devices (114) currently allocated to a spectrum sensing group is identified. Each wireless device (114, 116, 118) in the set performs spectrum sensing on one or more wireless communication channels. Spectrum sensing performance data (144) is analyzed for each such wireless device (114) in the set. The spectrum sensing performance data (144) indicates wireless communication performance of a wireless device (114) associated with the spectrum sensing performance data with respect to detecting a transmitted signal on the one or more communication channels. Wireless device membership of the set of wireless devices (114, 116, 118) allocated to the spectrum sensing group is dynamically adjusted based on the analysis.

Abstract translation: 一种方法，无线设备和信息处理系统动态地更新无线通信系统中的频谱感测组。 识别当前分配给频谱感测组的一组无线设备（114）。 该组中的每个无线设备（114,116,118）在一个或多个无线通信信道上执行频谱感测。 针对该组中的每个这样的无线设备（114）分析频谱感测性能数据（144）。 频谱感测性能数据（144）指示与关于检测一个或多个通信信道上的发送信号的频谱感测性能数据相关联的无线设备（114）的无线通信性能。 基于分析动态调整分配给频谱感测组的无线设备（114,116,118）集合的无线设备成员资格。

公开(公告)号：WO2007149614A3

公开(公告)日：2008-02-28

申请号：PCT/US2007065436

申请日：2007-03-29

Applicant: MOTOROLA INC ,  CORREAL NEIYER S ,  KYPEROUNTAS SPYROS ,  SHI QICAI

Inventor： CORREAL NEIYER S ,  KYPEROUNTAS SPYROS ,  SHI QICAI

IPC: G01S1/00 ,  H04W64/00 ,  H04W84/18 ,  H04W88/04

CPC classification number: H04W64/00 ,  H04W4/02 ,  H04W4/20 ,  H04W84/18 ,  H04W88/04

Abstract: A wireless communication system and method for determination of the location of a location-incapable device of a decentralized wireless communication network . Upon receipt of location determination information, relevant to the location of the location-incapable device in the network and sufficient to perform a calculation of the location of the location-incapable device, a location-capable device of the network may calculate the location of the location-incapable device and make this information available to one or more devices of the network.

Abstract translation: 一种用于确定分散无线通信网络的无位置设备的位置的无线通信系统和方法。 在接收到与位置无关装置在网络中的位置相关并且足以执行无位置装置的位置的计算的位置确定信息时，网络的位置能力装置可以计算出 位置无关的设备，并使该信息可用于网络的一个或多个设备。

公开(公告)号：WO2006135535A3

公开(公告)日：2007-03-29

申请号：PCT/US2006019436

申请日：2006-05-18

Applicant: MOTOROLA INC ,  SHI QICAI ,  CORREAL NEIYER S ,  HUANG JIAN ,  KYPEROUNTAS SPYROS

Inventor： SHI QICAI ,  CORREAL NEIYER S ,  HUANG JIAN ,  KYPEROUNTAS SPYROS

IPC: H04Q7/20 ,  H04Q11/04

CPC classification number: G01S5/0289

Abstract: A method for estimating the location of a blindfolded node (235) in a wireless network having reference nodes (225, 230) is provided. The reference nodes (225, 230) are combined into pairs (301) and each pair is checked to determine if the reference nodes are within each other's communication rage (304). A plurality of probable regions (315) for the blindfolded node are obtained (313, 315). These probable regions are overlapped (320), and the blindfolded node's estimated location is estimated to be the geometric center of the overlapped regions (325).

Abstract translation: 提供了一种用于估计具有参考节点（225,230）的无线网络中的蒙住眼节点（235）的位置的方法。 参考节点（225,230）被组合成对（301），并且每对被检查以确定参考节点是否在彼此的通信范围内（304）。 获得用于蒙住眼节点的多个可能区域（315）（313,315）。 这些可能的区域是重叠的（320），并且蒙住的节点的估计位置被估计为重叠区域的几何中心（325）。

公开(公告)号：WO2005039196B1

公开(公告)日：2005-09-01

申请号：PCT/US2004032510

申请日：2004-10-01

Applicant: MOTOROLA INC ,  GORDAY PAUL E ,  CALLAWAY JR EDGAR HERBERT ,  MARTIN FREDERICK L ,  SHI QICAI

Inventor： GORDAY PAUL E ,  CALLAWAY JR EDGAR HERBERT ,  MARTIN FREDERICK L ,  SHI QICAI

IPC: H04B1/40 ,  H04L27/00 ,  H04B1/30 ,  H03D1/22 ,  H04L27/16

CPC classification number: H04B1/406 ,  H04L2027/0065

Abstract: The present invention provides a multimode receiver design for mitigation of frequency offset by selective demodulation of an input modulated signal. The receiver (103) comprises a plurality of demodulators (207). Each of the plurality of demodulators (207) has the same functionality but different receiver sensitivity versus frequency-offset mitigation characteristics. Each of these demodulators incorporates a different demodulation technique. A suitable demodulator is selected to demodulate the received signal. The choice of a suitable demodulator is based on the value of the frequency offset (305, 307).

Abstract translation: 本发明提供了用于通过对输入调制信号进行选择性解调来减轻频率偏移的多模式接收机设计。 接收器（103）包括多个解调器（207）。 多个解调器（207）中的每一个具有相同的功能，但是与频率偏移减轻特性相比，不同的接收器灵敏度。 这些解调器中的每一个都包含不同的解调技术。 选择合适的解调器来解调接收到的信号。 选择合适的解调器是基于频率偏移的值（305,307）。

公开(公告)号：WO0241508A3

公开(公告)日：2002-07-25

申请号：PCT/US0144026

申请日：2001-11-19

Applicant: MOTOROLA INC

Inventor： SHI QICAI

IPC: H04B1/7077 ,  H04B1/707

CPC classification number: H04B1/7077

Abstract: A system for synchronizing a DS-CDMA receiver (106) to a received signal (700) using actual data as opposed to a special training sequence is provided. A chip by chip multiplication (910, 1304) is appliced to a sequence of received chip complex values in order to eliminate most traces of bit sign information from the received signal (700). The foregoing allows multiple bit length sequences of chips extraced from actual data to be combined, e.g., averaged, in order to reduce random noise. A low noise vector which has been derived from actual data can then be used to synchronize (1312) the receiver (106) to a desired degree of precision.

Abstract translation: 提供了一种使用与特殊训练序列相反的实际数据将DS-CDMA接收机（106）同步到接收信号（700）的系统。 逐芯片乘法（910,1304）被应用于接收到的码片复数值的序列，以便从接收信号（700）中消除大多数痕迹的比特符号信息。 以上允许从实际数据中提取的多个比特长度的码片序列被组合，例如平均化，以便减少随机噪声。 然后可以使用从实际数据导出的低噪声矢量将接收器（106）（1312）同步（1312）到期望的精确度。

公开(公告)号：WO2007087467A2

公开(公告)日：2007-08-02

申请号：PCT/US2007060233

申请日：2007-01-08

Applicant: MOTOROLA INC ,  HUANG JIAN ,  ALLEN VERNON A ,  NIU FENG ,  SHI QICAI

Inventor： HUANG JIAN ,  ALLEN VERNON A ,  NIU FENG ,  SHI QICAI

IPC: H04L12/28 ,  H04J1/16

CPC classification number: H04W48/12 ,  H04L45/00 ,  H04W48/18 ,  H04W88/18

Abstract: During operation a node (500) that has associated with a network (100) will periodically broadcast a beacon (303) during a beacon interval as part of a superframe. The beacon will be periodically broadcast for a first period of time, based on a time it takes for nodes to associate with the network. After the first period of time has passed, the beacon will be switched off for a second period of time, after which, the beacon will again be periodically broadcast.

Abstract translation: 在操作期间，与网络（100）相关联的节点（500）将在作为超帧的一部分的信标间隔期间周期性地广播信标（303）。 根据节点与网络关联所需的时间，信标将定期广播一段时间。 在第一段时间过后，信号灯会关闭第二段时间，之后，信号灯将再次定期播放。

公开(公告)号：WO2007087466A2

公开(公告)日：2007-08-02

申请号：PCT/US2007060229

申请日：2007-01-08

Applicant: MOTOROLA INC ,  HUANG JIAN ,  CHIOU WAYNE W ,  SHI QICAI

Inventor： HUANG JIAN ,  CHIOU WAYNE W ,  SHI QICAI

IPC: G06F15/16

CPC classification number: H04W52/0261 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

Abstract: A method and apparatus for determining a node's proper duty cycle is provided herein. All nodes (500) within a network (100) will interactively switch duty-cycles based on a number of hops a device is from a personal area network coordinator PNC. Changing duty cycles based on a number of hops from a PNC assures that spatial patterns of duty-cycles form in a network to maximize data throughput and minimize network wide power consumptions.

Abstract translation: 本文提供了一种用于确定节点的适当占空比的方法和装置。 网络（100）内的所有节点（500）将根据设备来自个人区域网络协调器PNC的跳数来交互地切换占空比。 基于来自PNC的跳数来改变占空比确保在网络中形成占空比的空间模式以最大化数据吞吐量并最大限度地减少网络功耗。

公开(公告)号：WO2006086224B1

公开(公告)日：2007-03-29

申请号：PCT/US2006003825

申请日：2006-01-31

Applicant: MOTOROLA INC ,  NIU FENG ,  KYPEROUNTAS SPYROS ,  SHI QICAI ,  TAUBENHEIM DAVID B

Inventor： NIU FENG ,  KYPEROUNTAS SPYROS ,  SHI QICAI ,  TAUBENHEIM DAVID B

IPC: H04Q7/20 ,  H04M11/04

CPC classification number: G01S5/0289

Abstract: A method and apparatus for determining the location of a node within a communication system is provided herein. During operation, reference nodes (1O5) having known locations are utilized to locate "blind" nodes (104) whose location is to be determined. More particularly, a blind node (104) wishing to determine its location will measure a plurality of path losses between itself and a plurality of reference nodes (105), These reference nodes' locations will then be mathematically weighted by the path loss between these reference nodes (105) and the blind node (104). The location of the blind node (104) is a sum of the mathematically weighted reference nodes' locations.

Abstract translation: 本文提供了用于确定通信系统内的节点的位置的方法和设备。 在操作期间，具有已知位置的参考节点（105）被用于定位其位置将被确定的“盲”节点（104）。 更具体地说，希望确定其位置的盲节点（104）将测量其自身与多个参考节点（105）之间的多个路径损耗。然后，这些参考节点的位置将通过这些参考之间的路径损耗进行数学加权 节点（105）和盲节点（104）。 盲节点（104）的位置是数学加权参考节点的位置的总和。

公开(公告)号：WO2005065149A3

公开(公告)日：2006-12-14

申请号：PCT/US2004041516

申请日：2004-12-09

Applicant: MOTOROLA INC ,  NIU FENG ,  KYPEROUNTAS SPYROS ,  MARTIN FREDERICK L ,  HUANG JIAN ,  SHI QICAI ,  BANCROFT TIMOTHY ,  CORREAL NEIYER S

Inventor： NIU FENG ,  KYPEROUNTAS SPYROS ,  MARTIN FREDERICK L ,  HUANG JIAN ,  SHI QICAI ,  BANCROFT TIMOTHY ,  CORREAL NEIYER S

IPC: G01S5/02 ,  G01S1/02 ,  G01S19/42 ,  G06Q10/00 ,  H04W8/18 ,  H04W64/00

CPC classification number: G01S5/14 ,  G01S5/0289 ,  G06Q10/087 ,  H04W8/18 ,  H04W64/00

Abstract: A method and location determination module is provided for determining a location of one of a plurality of units (16A, 16B, 16C, 12, 14) using neighbor lists (212). Each unit is communicatively coupled to at least some of the other plurality of units (16A, 16B, 16C, 12, 14), where at least some of the plurality of units (16A, 16B, 16C, 12, 14) are reference units, whose locations are known. The units communicate with other (16A, 16B, 16C, 12, 14) nearby units within communication range, to establish neighbor lists (212). A unit to be located then identifies an aggregate value corresponding to the number of occurrences of the reference units in the neighbor list (212) of the unit to be located and the neighbor lists (212) of each of a group of associated units. The location of the unit to be located is then determined, based upon the known locations of the reference units and the number of identified occurrences of the reference units in the corresponding neighbor lists (212).

Abstract translation: 提供一种方法和位置确定模块，用于使用邻居列表（212）确定多个单元（16A，16B，16C，12,14）之一的位置。 每个单元通信地耦合到其他多个单元（16A，16B，16C，12,14）中的至少一些，其中多个单元（16A，16B，16C，12,14）中的至少一些是参考单元 ，其位置已知。 单元与通信范围内的其他（16A，16B，16C，12，14）附近的单元进行通信，建立邻居列表（212）。 然后，要定位的单元识别与要定位的单元的邻居列表（212）中的参考单元的出现次数和一组关联单元中的每一个的邻居列表（212）相对应的聚合值。 然后基于参考单元的已知位置和相应邻居列表（212）中的参考单元的识别出现次数来确定要定位的单元的位置。