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1. 发明申请

WO2007076362A2 METHOD AND SYSTEM FOR WIRELESS LAN NETWORK DETECTION 审中-公开
标题翻译：无线局域网网络检测方法与系统
公开(公告)号：WO2007076362A2
公开(公告)日：2007-07-05
申请号：PCT/US2006062309
申请日：2006-12-19
申请人： NTT DOCOMO INC , FU GUANGRUI , WATANABE FUJIO
发明人： FU GUANGRUI , WATANABE FUJIO
IPC分类号： H04B7/185
CPC分类号： H04W48/18 , H04W84/042 , H04W84/12 , H04W88/06 , Y02D70/1224 , Y02D70/1242 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/23
摘要： A method and a system discover a wireless LAN network for a multi-mode handset in a power-efficient way. The method extends stand-by time for the cellular and wireless LAN multi-mode handset, taking advantage of that fact that the cellular interface demands less energy from the battery than the wireless LAN (WLAN)-based interface in such a handset. The method therefore uses the cellular interface as an always-on proxy for the wireless LAN interface to receive the initial packets of a communication session, and uses the initial packet or packets to activate the handset's interface with the wireless LAN.
摘要翻译：一种方法和系统以功率高效的方式发现用于多模式手机的无线LAN网络。该方法延长了蜂窝和无线局域网多模手机的待机时间，利用蜂窝接口在这种手机中比无线LAN（WLAN）接口要求的电池能量更少的事实。因此，该方法使用蜂窝接口作为无线LAN接口的始终代理接收通信会话的初始分组，并且使用初始分组或分组激活手机与无线LAN的接口。

2. 发明申请

WO2007002364A3 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：WO2007002364A3
公开(公告)日：2007-03-29
申请号：PCT/US2006024429
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： H04L12/56 , H04W52/02 , H04W84/18
CPC分类号： H04W52/0229 , H04W52/0216 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/22
摘要： Methods are disclosed to support power saving states of a beacon station in an ad hoc wireless local area network (WLAN). Some of the methods allow exchanging power management information among stations in the wireless network and to allow beacon station handovers. In some methods, always-on stations are given a higher priority to become a beacon station or a beacon station handover destination. The methods achieve good power saving while minimizing beacon handover frequency.
摘要翻译：公开了用于支持自组织无线局域网（WLAN）中的信标站的节电状态的方法。一些方法允许在无线网络中的站之间交换功率管理信息，并允许信标站切换。在一些方法中，给予始终在线站更高的优先级以成为信标站或信标站切换目的地。该方法在最小化信标切换频率的同时实现了良好的省电。

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

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。

5. 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。

6. 发明申请

WO2009042472A3 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：使用空闲周期的继电网的多媒体和广播服务中的ARQ启用的预传输方法
公开(公告)号：WO2009042472A3
公开(公告)日：2009-05-14
申请号：PCT/US2008076693
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： H04L1/18 , H04B7/14
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：本文公开的用于在网络（例如，中继网络）中传输数据的方法和装置。在一个实施例中，所述方法包括执行分组的预发送以使所述基站和所述多个跳跃能够同步地发送所述分组到所述无线通信系统中的一个或多个移动台; 以及由于在系统中的一个或多个跳的第二组处的预发送而在延迟期间在系统中的一个或多个跳的第一组处执行所述分组的一个或多个重新发送。

7. 发明申请

WO2008156909A3 A METHOD AND SYSTEM FOR JOINT TIME-OF-ARRIVAL AND AMPLITUDE ESTIMATION BASED ON A SUPER-RESOLUTION TECHNIQUE 审中-公开
标题翻译：基于超分辨率技术的接合时间和幅度估计的方法和系统
公开(公告)号：WO2008156909A3
公开(公告)日：2009-03-12
申请号：PCT/US2008060999
申请日：2008-04-21
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： G01S3/00
CPC分类号： H04L25/0202 , G01S3/043 , G01S5/0215 , G01S5/0221 , G01S11/02 , H04B1/7105 , H04B1/7107 , H04B1/7115
摘要： In a geolocation application, a method is provided to jointly estimate the time-of-arrival (TOA) and the amplitude of a received signal based on super-resolution technique. The super-resolution joint TOA-amplitude estimators are provided based on either the expectation-maximization (EM), parallel-interference-cancellation space-alternating generalized expectation maximization (PIC-SAGE) or serial-interference-cancellation SAGE (SIC-SAGE). The SIC-SAGE estimator minimizes the ranging estimation error especially under a non-line-of-sight (NLOS) condition. The SIC-SAGE estimator is a simplified version of the maximum likelihood estimator with more stable performance in a multipath rich environment, such as the ultra-wideband (UWB) based applications. These techniques provide the following benefits: 1) it is generic, so that signal processing can be deployed on both time-domain (e.g., UWB impulse-radio) and frequency-domain (e.g., multi-band orthogonal frequency-division multiplexing (MB-OFDM)) based transceiver schemes and applicable for both UWB and non-UWB systems; 2) it is robust especially under NLOS condition and multipath rich environment.
摘要翻译：在地理位置应用中，提供了一种基于超分辨率技术共同估计接收信号的时间（TOA）和接收信号幅度的方法。基于期望最大化（EM），并行干扰消除空间交替广义期望最大化（PIC-SAGE）或串行干扰消除SAGE（SIC-SAGE）提供超分辨率联合TOA幅度估计器，。 SIC-SAGE估计器最小化了测距估计误差，特别是在非视距（NLOS）条件下。 SIC-SAGE估计器是最大似然估计器的简化版本，在富路由多环境中具有更稳定的性能，例如基于超宽带（UWB）的应用。这些技术提供以下优点：1）它是通用的，使得信号处理可以在时域（例如，UWB脉冲无线电）和频域上部署（例如，多频带正交频分复用（MB -OFDM））收发器方案，适用于UWB和非UWB系统; 2）特别是在NLOS条件和多路径丰富的环境下，它是强大的。

8. 发明申请

WO2008052066A3 METHOD AND APPARATUS FOR ACCESS POINT SELECTION IN WIRELESS LAN 审中-公开
标题翻译：用于无线局域网中接入点选择的方法和装置
公开(公告)号：WO2008052066A3
公开(公告)日：2008-07-10
申请号：PCT/US2007082403
申请日：2007-10-24
申请人： NTT DOCOMO INC , DU LEI , BAI YONG , CHEN LAN , WATANABE FUJIO , YAMADA AKIRA
发明人： DU LEI , BAI YONG , CHEN LAN , WATANABE FUJIO , YAMADA AKIRA
IPC分类号： H04W48/20
CPC分类号： H04W48/20
摘要： A method and an apparatus select an access point (AP) in a wireless LAN to associate or reassociate, based on considerations that take into account the quality-of-service (QoS) status of the stations (STAs) and the potential hidden terminal effect. The method utilizes advertised or requested information obtained from an AP which includes the QoS status in each basic service set (BSS) and estimates the potential hidden terminal (HT) effect based on local channel sensing by the STA. The method selects the AP in a manner that reduces the possibility of collision from equal and higher priority HTs, thus providing greater transmission throughput and improving performance.
摘要翻译：一种方法和设备基于考虑到站（STA）的服务质量（QoS）状态和潜在的隐藏终端效应的考虑因素来选择无线LAN中的接入点（AP）以关联或重新关联。该方法利用从AP获得的广告或请求的信息，该信息包括每个基本服务集（BSS）中的QoS状态，并且基于STA的本地信道感测来估计潜在的隐藏终端（HT）效应。该方法以降低来自同等和更高优先级HT的冲突可能性的方式来选择AP，从而提供更大的传输吞吐量并改善性能。

9. 发明申请

WO2007081614A2 METHOD AND APPARATUS FOR OPTIMAL ATIM SIZE SETUP FOR 802.11 NETWORKS IN AN AD HOC MODE 审中-公开
标题翻译：用于802.11网络的最佳模式大小设置的方法和装置
公开(公告)号：WO2007081614A2
公开(公告)日：2007-07-19
申请号：PCT/US2006061320
申请日：2006-11-29
申请人： NTT DOCOMO INC , GAO XIA , JEONG MOO RYONG , WATANABE FUJIO
发明人： GAO XIA , JEONG MOO RYONG , WATANABE FUJIO
IPC分类号： G08C17/00
CPC分类号： H04W52/0216 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/22
摘要： A method for power saving in an ad hoc wireless computer network determines an optimal ATIM message exchange window. The method (a) determines an effective number of nodes that participate in exchanges of ATIM messages during an ATIM window; (b) using the effective number of nodes, calculating a length for a data frame transmission window; and (c) calculates a length for the ATIM window using the calculated data frame transmission window. In one instance, the method determines the effective number of nodes based on the number of senders of ATIM messages. In another instance, the effective number of nodes is determined based on both senders and recipients of the ATIM messages. The method may determine the effective number of nodes from a number of successful ATIM message transmissions in a given time period. The calculated ATIM window size can be provided as an initial value to other methods that dynamically adjust the ATIM window size.
摘要翻译：在自组织无线计算机网络中节电的方法确定最佳ATIM消息交换窗口。方法（a）确定在ATIM窗口期间参与ATIM消息交换的节点的有效数量; （b）使用有效数量的节点，计算数据帧传输窗口的长度; 和（c）使用所计算的数据帧传输窗口计算ATIM窗口的长度。在一种情况下，该方法基于ATIM消息的发送者的数量确定节点的有效数量。在另一个实例中，基于ATIM消息的发送者和收件人来确定有效数量的节点。该方法可以在给定时间段内从多个成功的ATIM消息传输确定节点的有效数量。计算的ATIM窗口大小可以作为动态调整ATIM窗口大小的其他方法的初始值。

10. 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。

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