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1. 发明申请

WO2011046825A1 AN ADAPTIVE BEAM-FORMING AND SPACE-FREQUENCY BLOCK CODING TRANSMISSION SCHEME FOR MIMO-OFDMA SYSTEMS 审中-公开
标题翻译： MIMO-OFDMA系统的自适应波束形成和空间块编码传输方案
公开(公告)号：WO2011046825A1
公开(公告)日：2011-04-21
申请号：PCT/US2010/051982
申请日：2010-10-08
申请人： NTT DOCOMO, INC. , CHONG, Chia-Chin , MINN, Hlaing , WATANABE, Fujio
发明人： CHONG, Chia-Chin , MINN, Hlaing , WATANABE, Fujio
IPC分类号： H04B1/04
CPC分类号： H04W72/085 , H04L1/0606 , H04L5/0007 , H04L25/0204 , H04L25/0224
摘要： In a wireless communication system including a base station and multiple mobile stations, a method transmits an orthogonal frequency division multiple access (OFDMA) data frame to the mobile stations. The method includes the steps of (a) at the beginning of the data frame, collecting metrics representing channel conditions for each of the channels; (b) assigning each mobile station to one or more communication channels based on the metrics collected; (c) for each symbol in the frame, calculating an average bit-error-rate for each of a number of transmission modes, and assigning to that symbol the transmission mode corresponding to the lowest calculated average bit-error-rate for that symbol; and (d) transmitting the symbols in the frame according to their respective assigned transmission mode. In addition, a bit-loading optimization step may be carried out in conjunction with the method to determine a modulation order for each symbol to be transmitted.
摘要翻译：在包括基站和多个移动站的无线通信系统中，方法向移动台发送正交频分多址（OFDMA）数据帧。该方法包括以下步骤：（a）在数据帧的开头，收集表示每个信道的信道条件的度量; （b）基于收集的度量将每个移动台分配给一个或多个通信信道; （c）对于帧中的每个符号，计算多个传输模式中的每一个的平均误码率，并且向该符号分配与该符号的最低计算的平均误码率相对应的传输模式; 以及（d）根据各自的分配传输模式在帧中发送符号。此外，可以结合用于确定要发送的每个符号的调制阶数的方法来执行比特加载优化步骤。

2. 发明申请

WO2009035952A1 METHOD FOR AN IMPROVED LINEAR LEAST SQUARES ESTIMATION OF A MOBILE TERMINAL'S LOCATION UNDER LOS AND NLOS CONDITIONS AND USING MAP INFORMATION 审中-公开
标题翻译：改进的线性最小二乘法在LOS和NLOS条件下使用移动终端位置的方法和使用地图信息的方法
公开(公告)号：WO2009035952A1
公开(公告)日：2009-03-19
申请号：PCT/US2008/075634
申请日：2008-09-08
申请人： NTT DOCOMO INC. , GUVENC, Ismail , WATANABE, Fujio , INAMURA, Hiroshi
发明人： GUVENC, Ismail , WATANABE, Fujio , INAMURA, Hiroshi
IPC分类号： H04Q7/22
CPC分类号： H04W64/00 , G01S5/0215 , G01S5/14
摘要： A linear least squares (LLS) estimator provides a low complexity estimation of the location of a mobile terminal (MT), using one of the fixed terminals (FTs) as a reference FT to derive a linear model. A method for selecting a reference FT is disclosed, which improves the location accuracy relative to an arbitrary approach to selecting the reference FT. In addition, a covariance-matrix based LLS estimator is proposed in line-of-sight (LOS) and non-LOS (NLOS) environments to further provide accuracy, taking advantage of the correlation of the observations. Different techniques for selecting the reference FT under non-LOS (NLOS) conditions are disclosed. A map-based two-stage LLS estimator assists in selecting the reference FT under NLOS conditions.
摘要翻译：线性最小二乘法（LLS）估计器使用固定终端（FT）中的一个作为参考FT提供对移动终端（MT）的位置的低复杂度估计，以导出线性模型。公开了一种用于选择参考FT的方法，其相对于选择参考FT的任意方法提高了位置精度。此外，在视距（LOS）和非LOS（NLOS）环境中提出了基于协方差矩阵的LLS估计器，以进一步提供准确性，利用观测的相关性。公开了在非LOS（NLOS）条件下选择参考FT的不同技术。基于地图的两级LLS估计器有助于在NLOS条件下选择参考FT。

3. 发明申请

WO2008070671A3 METHOD FOR OPTIMUM THRESHOLD SELECTION OF TIME-OF-ARRIVAL ESTIMATORS 审中-公开
标题翻译：最佳阈值选择时间估计器的方法
公开(公告)号：WO2008070671A3
公开(公告)日：2008-08-28
申请号：PCT/US2007086392
申请日：2007-12-04
申请人： NTT DOCOMO INC , CHONG CHIA-CHIN , WATANABE FUJIO
发明人： CHONG CHIA-CHIN , WATANABE FUJIO
IPC分类号： H04B7/212
CPC分类号： G01S5/0221 , H04W64/006
摘要： The following invention relates to geolocation technology. In particular, the proposed method can be used to determine the optimum threshold value that minimizes the estimation error. The proposed method also allows the threshold value to be varied adaptively according to the signal-to-noise ratios (SNRs) under consideration. This is to ensure that the optimum threshold value is being selected under all channel conditions i.e., both line-of-sight (LOS) and non-LOS (NLOS) scenarios. Additionally, the proposed method is generic and system independent in which it can be applied to both coherent (e.g., match filter (MF)) and non-coherent receivers (e.g., energy detector (ED)).
摘要翻译：以下发明涉及地理定位技术。特别地，所提出的方法可以用于确定最小化估计误差的最佳阈值。所提出的方法还允许根据所考虑的信噪比（SNR）自适应地改变阈值。这是为了确保在所有信道条件即视线（LOS）和非LOS（NLOS）场景下选择最佳阈值。另外，所提出的方法是通用和系统无关的，其中它可以应用于相干（例如，匹配滤波器（MF））和非相干接收机（例如，能量检测器（ED））。

4. 发明申请

WO2005002116A3 PROXY ACTIVE SCAN FOR WIRELESS NETWORKS 审中-公开
标题翻译：代理无线网络的代理主动扫描
公开(公告)号：WO2005002116A3
公开(公告)日：2005-05-26
申请号：PCT/US2004016236
申请日：2004-05-20
申请人： DOCOMO COMM LAB USA INC , JEONG MOO RYONG , WATANABE FUJIO , KAWAHARA TOSHIRO
发明人： JEONG MOO RYONG , WATANABE FUJIO , KAWAHARA TOSHIRO
IPC分类号： H04L20060101 , H04W36/08 , H04W48/14 , H04W48/16 , H04W84/12 , H04W92/20 , H04Q7/24
CPC分类号： H04W48/16 , H04W36/08 , H04W48/14 , H04W84/12 , H04W92/20
摘要： Active scanning method in a wireless network for fast determining available access points (106, 806) using inter-AP (Access Point) communication is described. In the scanning method, a mobile station (102, 802) sends Probe Request for Proxy frame to the current AP (104, 804) serving the mobile station (102, 802). In response to the Probe Request for Proxy frame, the current AP (104, 804) send Proxy Probe Request packet to the appropriate APs (106, 806). In response to the Proxy Probe Request packet, the neighbor APs (106, 806) send Probe Response frame to the mobile station (102, 802) on its operating channel. Since the mobile station (102, 802) moves to the channel being examined after sending the Probe Request for Proxy frame, it receives the Probe Response frame if it is in the coverage area of the neighbor AP (106, 806). The content of Probe Response frame provides the mobile station (102, 802) with the information to be used in handoff decision and network join procedures. Thus, the mobile station (102, 802) neither has to move to the channel to be examined nor send Probe Request frame on that channel. This enables active scan to be initiated even when the neighbor AP (106, 806) is operating in PCF (Point Coordination Function) and the network is in CFP (Contention Free Period), during which unassociated mobile stations (including the scanning mobile station) cannot send packets.
摘要翻译：描述了使用AP间（接入点）通信来快速确定可用接入点（106,806）的无线网络中的主动扫描方法。在扫描方法中，移动台（102,802）向服务于移动台（102,802）的当前AP（104,804）发送针对代理帧的探测请求。响应于探测请求代理帧，当前AP（104,804）将代理探测请求分组发送到适当的AP（106,806）。响应于代理探测请求分组，邻居AP（106,806）在其操作信道上向移动台（102,802）发送探测响应帧。由于移动台（102,802）在发送用于代理帧的探测请求之后移动到正在被检查的信道，因此如果它在邻居AP（106,806）的覆盖区域中，则它接收探测响应帧。探测响应帧的内容向移动台（102,802）提供要在切换决定和网络加入过程中使用的信息。因此，移动台（102,802）既不必移动到要检查的信道，也不必在该信道上发送探测请求帧。这使得即使在邻居AP（106,806）在PCF（点协调功能）中操作并且网络处于CFP（无争用周期）中时也启动主动扫描，在此期间，未关联的移动台（包括扫描移动台）不能发送数据包。

5. 发明申请

WO2011011243A1 MONITORING WELLNESS USING A WIRELESS HANDHELD DEVICE 审中-公开
标题翻译：使用无线手持设备监控健康
公开(公告)号：WO2011011243A1
公开(公告)日：2011-01-27
申请号：PCT/US2010/041999
申请日：2010-07-14
申请人： NTT DOCOMO, INC. , KAILAS, Aravind , CHONG, Chia-Chin , WATANABE, Fujio
发明人： KAILAS, Aravind , CHONG, Chia-Chin , WATANABE, Fujio
IPC分类号： A61B5/00
CPC分类号： A61B5/01 , A61B5/16 , G06F19/00 , G16H50/20 , G16H50/30
摘要： A method for detecting a subject's stress level associated with an activity includes (a) connecting the subject to a sensor that senses a value of a biometric; (b) during the activity, (i) repeatedly sensing the value of the biometric over each of a plurality of time windows; and (ii) computing, for each time window, a deviation in the sensed values of the biometric; and (c) detecting the stress level based on the computed deviations. In one implementation, the value of the biometric is a skin temperature measurement. The method may be implemented as an application in a wireless handheld device, such as a cellular telephone.
摘要翻译：用于检测与活动相关联的受试者的压力水平的方法包括（a）将受试者连接到感测生物特征值的传感器; （b）在活动期间，（i）在多个时间窗中的每一个上重复感测生物特征值; 和（ii）对于每个时间窗计算生物特征值的感测值的偏差; 和（c）基于所计算的偏差检测应力水平。在一个实施方案中，生物特征值是皮肤温度测量。该方法可以被实现为诸如蜂窝电话的无线手持设备中的应用。

6. 发明申请

WO2009058742A3 SYNCHRONIZED MULTI-LINK TRANSMISSION IN AN ARQ-ENABLED MULTI-HOP WIRELESS NETWORK 审中-公开
标题翻译：在ARQ启用的多人无线网络中同步多链路传输
公开(公告)号：WO2009058742A3
公开(公告)日：2009-07-30
申请号：PCT/US2008081369
申请日：2008-10-27
申请人： NTT DOCOMO INC , JEONG MOO RYONG , GUVENC ISMAIL , WATANABE FUJIO
发明人： JEONG MOO RYONG , GUVENC ISMAIL , WATANABE FUJIO
IPC分类号： H04L1/18 , H04W84/18
CPC分类号： H04B7/2606 , H04L1/1877 , H04L1/1887 , H04L2001/0097 , H04W56/0005 , H04W84/20
摘要： A method and apparatus is disclosed herein for synchronized multi-link transmission in an ARQ-enabled multi-hop wireless network. In one embodiment, the method comprises performing pre-transmission of a packet to hops to enable a base station and the plurality of hops in the network to transmit the packet synchronously to one or more mobile stations in the wireless communication system; and performing one or more re-transmissions of the packet at a set of one or more hops forming a path in the network if time remaining before a synchronized transmission time for the path as a whole is greater than a threshold.
摘要翻译：本文公开了一种在启用ARQ的多跳无线网络中进行同步多链路传输的方法和装置。在一个实施例中，所述方法包括执行分组的预传输以使基站能够和所述网络中的所述多个跳跃同步地传送到所述无线通信系统中的一个或多个移动台; 以及如果在整个路径的同步传输时间之前剩余的时间大于阈值，则在一个或多个跳跃的组中执行一个或多个组播路径的重传。

7. 发明申请

WO2009061660A1 METHOD AND SYSTEM OF THRESHOLD SELECTION FOR RELIABLE RELAY STATIONS GROUPING FOR DOWNLINK TRANSMISSION 审中-公开
标题翻译：用于下行链路传输分组的可靠继电器的阈值选择方法和系统
公开(公告)号：WO2009061660A1
公开(公告)日：2009-05-14
申请号：PCT/US2008/081787
申请日：2008-10-30
申请人： NTT DOCOMO INC. , CHONG, Chia-Chin , WATANABE, Fujio , INAMURA, Hiroshi
发明人： CHONG, Chia-Chin , WATANABE, Fujio , INAMURA, Hiroshi
IPC分类号： H04W36/00
CPC分类号： H04B7/024 , H04B7/15592 , H04W16/26
摘要： A relaying selection and cooperative communications method provides a threshold selection criterion for forming a reliable group of relay stations (RSs) based on one or more design criteria. Possible design criteria include an outage probability constraint and a throughput constraint. The threshold value is selected according to, for example, transmission paths (e.g., line-of-sight, obstructed-light-of-sight, non-light-of-sight) or channel conditions (e.g., signal-to-noise-ratio) between the base station (BS) and the RSs (i.e., BS-RSs link) and between the RSs and the mobile station (MS) (i.e., RSs-MS link), respectively.
摘要翻译：中继选择和协作通信方法基于一个或多个设计标准提供用于形成可靠的中继站组（RS）的阈值选择准则。可能的设计标准包括中断概率约束和吞吐量约束。根据例如传输路径（例如，视线，被遮蔽的视野，不可见光）或信道条件（例如，信噪比）来选择阈值，基站（BS）和RS（即BS-RS链路）之间以及RS和移动台（MS）之间的RS（比例）比率）（即，RSs-MS链路）。

8. 发明申请

WO2007002363A3 METHOD AND APPARATUS FOR POWER SAVING IN BEACON GENERATION OF WIRELESS NETWORKS IN AD HOC MODE 审中-公开
标题翻译：在无线网络中生成无线网络的方法和装置
公开(公告)号：WO2007002363A3
公开(公告)日：2009-04-16
申请号：PCT/US2006024428
申请日：2006-06-21
申请人： NTT DOCOMO INC , GAO XIA , WATANABE FUJIO , JEONG MOO RYONG
发明人： GAO XIA , WATANABE FUJIO , JEONG MOO RYONG
IPC分类号： G08C17/00 , H01Q11/12 , H04B1/16 , H04W52/02 , H04W84/18
CPC分类号： H04W52/0216 , H04W52/0229 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/22
摘要： Methods for increasing power saving in a station that sends or receives frames in an ad hoc wireless network (e.g., IBSS), while allowing the station to enter a power-saving mode quickly upon completion of scheduled tasks. At the same time, a method of the present invention allows two stations in the ad hoc wireless network to infer each other's power management mode without requiring an ATIM/ACK exchange between the STAs within an ATIM window. Consequently, a station may enter a power-saving mode promptly without impairing the station's ability to receive packets. In one embodiment, a "more data" field is used between stations to exchange information. Stations with various computation abilities provide information under different time constraints. The stations may enter power-saving modes that send multicast/broadcast frames or use promiscuous mode within an ATIM window.
摘要翻译：在用于在自组织无线网络（例如，IBSS）中发送或接收帧的站中增加功率节省的方法，同时允许所述站在完成预定任务时快速进入功率节省模式。同时，本发明的方法允许自组织无线网络中的两个站推断出彼此的电力管理模式，而不需要ATIM窗口内的STA之间的ATIM / ACK交换。因此，站可以及时进入省电模式，而不会损害电台接收分组的能力。在一个实施例中，在站之间使用“更多数据”字段来交换信息。具有各种计算能力的站点在不同的时间限制下提供信息。这些站可以进入在ATIM窗口内发送组播/广播帧或使用混杂模式的省电模式。

9. 发明申请

WO2009042472A2 A METHOD FOR ARQ-ENABLED PRE-TRANSMISSIONS IN MULTICAST AND BROADCAST SERVICES OF RELAY NETWORKS UTILIZING THE IDLE PERIODS 审中-公开
标题翻译：一种利用空闲期的中继网络的组播和广播业务中的ARQ使能的前发送的方法
公开(公告)号：WO2009042472A2
公开(公告)日：2009-04-02
申请号：PCT/US2008/076693
申请日：2008-09-17
申请人： NTT DOCOMO, INC. , GUVENC, Ismail , JEONG, Moo, Ryong , WATANABE, Fujio
发明人： GUVENC, Ismail , JEONG, Moo, Ryong , WATANABE, Fujio
IPC分类号： H04W4/00
CPC分类号： H04L1/02 , H04B7/155 , H04L1/1803 , H04L1/1848 , H04L2001/0093 , H04L2001/0097 , H04W56/00
摘要： A method and apparatus is disclosed herein for transmitting data in a network (e.g., a relay network). In one embodiment, the method comprises performing pre-transmission of a packet to hops to enable the base station and the plurality of hops to transmit the packet synchronously to one or more mobile stations in the wireless communication system; and performing one or more re-transmissions of the packet at a first set of one or more hops in the system during a delay due to pre-transmissions at a second set of one or more hops in the system.
摘要翻译：这里公开了一种用于在网络（例如，中继网络）中传输数据的方法和装置。在一个实施例中，该方法包括执行分组的预先传输以跳跃以使基站和多个跳跃同步地向无线通信系统中的一个或多个移动台传输分组; 以及在由于系统中第二组一个或多个中继段处的预传输而导致的延迟期间，在系统中的第一组一个或多个中继段处执行分组的一次或多次重传。

10. 发明申请

WO2009006092A1 METHOD AND SYSTEM FOR A RELIABLE RELAY-ASSOCIATED AND OPPORTUNISTIC COOPERATIVE TRANSMISSION SCHEMES 审中-公开
标题翻译：可靠的中继和机会合作传输方案的方法和系统
公开(公告)号：WO2009006092A1
公开(公告)日：2009-01-08
申请号：PCT/US2008/067990
申请日：2008-06-24
申请人： NTT DOCOMO INC. , WANG, Dandan , CHONG, Chia-chin , GUVENC, Ismail , WATANABE, Fujio
发明人： WANG, Dandan , CHONG, Chia-chin , GUVENC, Ismail , WATANABE, Fujio
IPC分类号： H04B7/00 , H04B15/00
CPC分类号： H04B7/026 , H04B7/15592
摘要： A cooperative communication scheme is provided for a base station (BS) to communicate with a mobile station (MS) through a group of relay stations (RSs) The RSs serve the same target MS To ensure that reliable transmission exists between the BS and the RSs, the BS initially sends the information to all the RSs in the group The RSs then feedback their reliability values to the BS in a message If the reliability metric is greater than or equal to a threshold value, the RSs are considered reliable The reliable RSs transmit their information to the MS using a cooperative multicast transmission mode Meanwhile, the unreliable RSs within the relay group overhear the transmissions between the reliable RSs and the target MS The unreliable RSs that receive overheard packets correctly can join the cooperative transmission to provide a higher cooperative diversity gam to the target MS.
摘要翻译：提供了一种协作通信方案，用于基站（BS）通过一组中继站（RS）与移动台（MS）通信.RSs服务于相同的目标MS。为了确保BS和RS之间存在可靠的传输 BS最初将信息发送给组中的所有RS。然后，RS在消息中将其可靠性值反馈给BS。如果可靠性度量值大于或等于阈值，则将RS视为可靠可靠的RS传输它们使用协作多播传输模式向MS发送信息。同时，中继组内的不可靠RS会听到可靠的RS和目标MS之间的传输。正确接收到数据包的不可靠的RS可以加入协作传输，提供更高的协作分集 gam到目标MS。

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