专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明申请

US20120115476A1 SYSTEM AND METHOD FOR POPULATION TRACKING, COUNTING, AND MOVEMENT ESTIMATION USING MOBILE OPERATIONAL DATA AND/OR GEOGRAPHIC INFORMATION IN MOBILE NETWORK 有权
公开(公告)号：US20120115476A1
公开(公告)日：2012-05-10
申请号：US13291730
申请日：2011-11-08
申请人： Hyung Sik Shin , Motoharu Miyake , Fujio Watanabe
发明人： Hyung Sik Shin , Motoharu Miyake , Fujio Watanabe
IPC分类号： H04W4/02
CPC分类号： G06Q30/02 , G06Q10/06 , H04W4/021 , H04W4/027 , H04W4/029
摘要： Methods and apparatuses are disclosed herein for population tracking, counting and/or movement estimation. In one embodiment, the method comprises receiving mobile phone operational data indicative of user equipment location, where the event data includes location area update messages and periodic registration messages; and performing travel estimation based on the mobile phone operation data, including performing interpolation on data associated with one or more individuals in a population to estimate intermediate positions of a trajectory of each of the one or more individuals for a specified time period based on a shortest path mesh sequence estimation algorithm.

62. 发明授权

US08054798B2 Proxy active scan for wireless networks 失效
标题翻译：代理主动扫描无线网络
公开(公告)号：US08054798B2
公开(公告)日：2011-11-08
申请号：US10545464
申请日：2004-05-20
申请人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
发明人： Moo Ryong Jeong , Fujio Watanabe , Toshiro Kawahara
IPC分类号： H04W4/00
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（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，移动站（102,802）向服务于移动站（102,802）的当前AP（104,804）发送用于代理帧的探测请求。响应于针对代理帧的探测请求，当前AP（104,804）向适当的AP（106,806）发送代理探测请求分组。响应于代理探测请求分组，相邻AP（106,806）在其操作信道上向移动台（102,802）发送探测响应帧。由于移动站（102,802）在发送代理探测请求帧之后移动到被检查的信道，所以如果它在邻居AP（106,806）的覆盖区域内，它接收探测响应帧。探测响应帧的内容为移动台（102,802）提供要用于切换决策和网络连接过程的信息。因此，移动台（102,802）既不必移动到要检查的信道，也不在该信道上发送探测请求帧。即使当相邻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））时，也可以启动主动扫描，在此期间，未关联的移动站（包括扫描移动站）无法发送数据包。

63. 发明申请

US20100118826A1 Evolving-type user resource structure/channelization with enhanced diversity for OFDMA based time-varying channels 有权
标题翻译：用于基于OFDMA的时变频道的增强分集的演进型用户资源结构/信道化
公开(公告)号：US20100118826A1
公开(公告)日：2010-05-13
申请号：US12455268
申请日：2009-05-28
申请人： Chia-Chin Chong , Hlaing Minn , Fujio Watanabe
发明人： Chia-Chin Chong , Hlaing Minn , Fujio Watanabe
IPC分类号： H04W72/04
CPC分类号： H04B7/12 , H04B7/0452
摘要： An evolving-type resource structure supports high data rate services at high mobile speeds. The evolving-type resource structure is an efficient diversity-exploiting user resource structure for fast time-varying frequency-selective fading channel environments. In one example, an evolving-type resource structure takes advantages of both band-type and interleaved-type structures which exploit both multiuser diversity and frequency diversity in fast time-varying channels. The evolving-type resource structure is applicable to centralized, semi-distributed and distributed access schemes and may be used in both downlink (DL) and uplink (UL) transmissions in a cellular system.
摘要翻译：演进型资源结构支持高移动速度的高数据速率业务。演进型资源结构是用于快速时变频率选择性衰落信道环境的有效的分集利用用户资源结构。在一个示例中，演进型资源结构利用在快速时变信道中利用多用户分集和频率分集两者的带式和交织型结构的优点。演进型资源结构适用于集中式，半分布式和分布式访问方案，并可用于蜂窝系统中的下行链路（DL）和上行链路（UL）传输。

64. 发明申请

US20090175448A1 WIRELESS NETWORK HANDOFF KEY 审中-公开
公开(公告)号：US20090175448A1
公开(公告)日：2009-07-09
申请号：US12402350
申请日：2009-03-11
申请人： Fujio Watanabe , Craig B. Gentry , Gang Wu , Toshiro Kawahara
发明人： Fujio Watanabe , Craig B. Gentry , Gang Wu , Toshiro Kawahara
IPC分类号： H04L9/00
CPC分类号： H04L9/0836 , H04L63/0428 , H04L63/061 , H04L2209/80 , H04W12/0013 , H04W12/04 , H04W36/0011 , H04W80/02
摘要： The present invention provides a method and system for handoff in a wireless communication network. In one embodiment, a common handoff encryption key is generated by an authentication server and transmitted to a first access point and a second access point. The first access point transmits the handoff encryption key to a wireless terminal. The wireless terminal encrypts output data with the handoff encryption key. When the wireless terminal is associated with the second access point, the second access point decrypts data from the wireless terminal with the handoff encryption key. In a second embodiment, a handoff WEP key generation secret parameter is provided to a first and a second access point. Both access points generate a handoff WEP key as a function of the handoff WEP key generation secret parameter and an address of a wireless terminal. The first access point transmits the handoff WEP key to the wireless terminal. The second access point communicates data packets encrypted with the handoff WEP key with the wireless terminal.

65. 发明授权

US07447148B2 Method for supporting scalable and reliable multicast in TDMA/TDD systems using feedback suppression techniques 失效
标题翻译：使用反馈抑制技术在TDMA / TDD系统中支持可扩展和可靠的组播的方法
公开(公告)号：US07447148B2
公开(公告)日：2008-11-04
申请号：US10552672
申请日：2004-10-14
申请人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Kumar Jain , Toshiro Kawahara
发明人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Kumar Jain , Toshiro Kawahara
IPC分类号： G01R31/08 , H04J1/16
CPC分类号： H04L12/1868 , H04L1/0057 , H04L1/08 , H04L1/1621 , H04L1/1685 , H04L1/1819 , H04L5/1469 , H04L12/1863 , H04L12/189 , H04W8/26 , H04W74/04 , H04W76/40 , H04W84/00 , H04W84/04 , H04W84/12
摘要： A method supports scalable and reliable multicast in a wireless network with a large bandwidth-delay product. In this method, acknowledgement packets from different receivers experiencing the same number of data packets lost are assigned the same time slots. This method can be combined with other loss recovery techniques, such as forward error correction (FEC) recovery, proactive protection, feedback suppression and collision detection. Scalability is achieved as bandwidth usage relates only to the number of packets transmitted, rather than the number of receivers.
摘要翻译：一种方法支持具有大带宽延迟产品的无线网络中的可扩展和可靠的组播。在这种方法中，来自经历相同数量数据包丢失的不同接收机的确认分组被分配相同的时隙。该方法可以与其他丢失恢复技术相结合，如前向纠错（FEC）恢复，主动保护，反馈抑制和冲突检测。实现可扩展性，因为带宽使用仅与发送的分组的数量相关，而不是接收机的数量。

66. 发明申请

US20080244069A1 METHOD AND APPARATUS FOR DORMANT MODE SUPPORT WITH PAGING 审中-公开
公开(公告)号：US20080244069A1
公开(公告)日：2008-10-02
申请号：US12133273
申请日：2008-06-04
申请人： Daichi Funato , Fujio Watanabe , Toshio Miki
发明人： Daichi Funato , Fujio Watanabe , Toshio Miki
IPC分类号： G06F15/173
CPC分类号： H04W68/00 , H04W48/16 , H04W48/20 , H04W52/0216 , H04W52/0219 , H04W64/00 , H04W76/20 , H04W80/04 , H04W84/12 , H04W88/08 , Y02D70/142 , Y02D70/22
摘要： Apparatuses and methods are disclosed herein for implementing dormant mode with paging in a WLAN. Power savings in the computing device and reduction in traffic across the network are achieved by requiring a computing device to inform the WLAN of its location only when it crosses a paging area boundary or is to receive IP traffic. Dormant mode with paging is implemented in a protocol that supports dormant functionality and paging functionality but does not itself provide methods or standards for implementing such functionality, such as the IEEE 802.11. The methods and apparatuses disclosed herein provide the methods needed to implement dormant mode with paging in such a protocol. Generally, the methods and apparatuses for implementing dormant mode with paging basically include (1) establishing paging areas; (2) communicating access group information to a computing device; and (3) locating a computing device.

67. 发明申请

US20080069022A1 METHOD AND APPARATUS FOR DORMANT MODE SUPPORT WITH PAGING 失效
标题翻译：用于寻呼方式支持的方法和装置
公开(公告)号：US20080069022A1
公开(公告)日：2008-03-20
申请号：US11861083
申请日：2007-09-25
申请人： Daichi Funato , Fujio Watanabe , Toshio Miki
发明人： Daichi Funato , Fujio Watanabe , Toshio Miki
IPC分类号： H04Q7/00 , G08C17/00
CPC分类号： H04W68/00 , H04W48/16 , H04W48/20 , H04W52/0216 , H04W52/0219 , H04W64/00 , H04W76/20 , H04W80/04 , H04W84/12 , H04W88/08 , Y02D70/142 , Y02D70/22
摘要： Apparatuses and methods are disclosed herein for implementing dormant mode with paging in a WLAN. Power savings in the computing device and reduction in traffic across the network are achieved by requiring a computing device to inform the WLAN of its location only when it crosses a paging area boundary or is to receive IP traffic. Dormant mode with paging is implemented in a protocol that supports dormant functionality and paging functionality but does not itself provide methods or standards for implementing such functionality, such as the IEEE 802.11. The methods and apparatuses disclosed herein provide the methods needed to implement dormant mode with paging in such a protocol. Generally, the methods and apparatuses for implementing dormant mode with paging basically include (1) establishing paging areas; (2) communicating access group information to a computing device; and (3) locating a computing device.
摘要翻译：本文公开了用于在WLAN中实现具有寻呼的休眠模式的装置和方法。通过要求计算设备仅在其跨越寻呼区域边界或者要接收IP流量时才通知WLAN其位置来实现计算设备中的功率节省和网络上的流量减少。具有寻呼的休眠模式在支持休眠功能和寻呼功能的协议中实现，但本身不提供用于实现这种功能的方法或标准，例如IEEE 802.11。这里公开的方法和装置提供了在这种协议中实现具有寻呼的休眠模式所需的方法。通常，用于实现寻呼的休眠模式的方法和装置基本上包括（1）建立寻呼区域; （2）将访问组信息传送到计算设备; 和（3）定位计算设备。

68. 发明申请

US20080031179A1 METHOD FOR SUPPORTING SCALABLE AND RELIABLE MULTICAST IN TDMA/TDD SYSTEMS USING FEEDBACK SUPPRESSION TECHNIQUES 失效
标题翻译：使用反馈抑制技术在TDMA / TDD系统中支持可扩展和可靠的多播的方法
公开(公告)号：US20080031179A1
公开(公告)日：2008-02-07
申请号：US11871858
申请日：2007-10-12
申请人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Jain , Toshiro Kawahara
发明人： Xia Gao , Fujio Watanabe , Gang Wu , Ravi Jain , Toshiro Kawahara
IPC分类号： H04H1/00
CPC分类号： H04L12/1868 , H04L1/0057 , H04L1/08 , H04L1/1621 , H04L1/1685 , H04L1/1819 , H04L5/1469 , H04L12/1863 , H04L12/189 , H04W8/26 , H04W74/04 , H04W76/40 , H04W84/00 , H04W84/04 , H04W84/12
摘要： A method supports scalable and reliable multicast in a wireless network with a large bandwidth-delay product. In this method, acknowledgement packets from different receivers experiencing the same number of data packets lost are assigned the same time slots. This method can be combined with other loss recovery techniques, such as forward error correction (FEC) recovery, proactive protection, feedback suppression and collision detection. Scalability is achieved as bandwidth usage relates only to the number of packets transmitted, rather than the number of receivers.
摘要翻译：一种方法支持具有大带宽延迟产品的无线网络中的可扩展和可靠的组播。在这种方法中，来自经历相同数量数据包丢失的不同接收机的确认分组被分配相同的时隙。该方法可以与其他丢失恢复技术相结合，如前向纠错（FEC）恢复，主动保护，反馈抑制和冲突检测。实现可扩展性，因为带宽使用仅与发送的分组的数量相关，而不是接收机的数量。

69. 发明授权

US07321587B2 Handover resource optimization 有权
标题翻译：切换资源优化
公开(公告)号：US07321587B2
公开(公告)日：2008-01-22
申请号：US10295800
申请日：2002-11-15
申请人： Xia Gao , Moo R. Jeong , Fujio Watanabe , Gang Wu
发明人： Xia Gao , Moo R. Jeong , Fujio Watanabe , Gang Wu
IPC分类号： H04Q7/24
CPC分类号： H04W28/26 , H04W36/0011 , H04W80/04
摘要： A method for maintaining a quality of service in a wireless communication network is introduced. A reservation is created in a first data path between a home agent and a first foreign agent for data flow between the home agent and a wireless terminal. When the wireless terminal associates with a second foreign agent, a quality of service supportive second data path may be created between the first foreign agent and the second foreign agent. The data flow may be routed over the first and second data paths to maintain the quality of service for the data flow. A wireless communication network may include first downstream and reverse tunnels coupling a home agent and a first foreign agent, each tunnel having a reservation to maintain a quality of service. Second downstream and reverse tunnels may couple a home agent and a second foreign agent. All or part of the resources reserved by the first tunnels may be shared with the second tunnels when a wireless terminal hands over from the first foreign agent to the second foreign agent.
摘要翻译：介绍了一种在无线通信网络中维护服务质量的方法。在归属代理和第一外国代理之间的第一数据路径中创建预留，用于归属代理和无线终端之间的数据流。当无线终端与第二外部代理相关联时，可以在第一外部代理和第二外部代理之间创建服务质量支持的第二数据路径。可以通过第一和第二数据路径路由数据流，以保持数据流的服务质量。无线通信网络可以包括耦合归属代理和第一外国代理的第一下游和反向隧道，每个隧道具有保留以维持服务质量。第二个下游和反向隧道可以连接归属代理和第二外部代理。当无线终端从第一外地代理人移交给第二外地代理时，由第一隧道预留的全部或部分资源可以与第二隧道共享。

70. 发明授权

US07236475B2 Using subnet relations to conserve power in a wireless communication device 失效
标题翻译：使用子网关系来节省无线通信设备的功率
公开(公告)号：US07236475B2
公开(公告)日：2007-06-26
申请号：US10120164
申请日：2002-04-10
申请人： Fujio Watanabe , Jingjun Cao , Shoji Kurakake
发明人： Fujio Watanabe , Jingjun Cao , Shoji Kurakake
IPC分类号： H04Q7/00
CPC分类号： H04W48/16 , H04W36/00 , H04W52/0274 , H04W88/06 , Y02D70/1222 , Y02D70/142
摘要： A system and method for monitoring subnet relations in a wireless communication system is disclosed. A wireless communication device is provided and is located in a first subnet. When the wireless communication device executes a handoff to a second subnet, a mobility agent server notifies a virtual operator server of the handoff. As a result of the handoff, a subnet relation is created between the first subnet and the second subnet that is stored and later used to control how the wireless communication device uses power by placing network interface systems that cannot be used in a power-saving mode.
摘要翻译：公开了一种用于监视无线通信系统中的子网关系的系统和方法。提供无线通信设备并且位于第一子网中。当无线通信设备执行切换到第二子网时，移动代理服务器通知虚拟运营商服务器切换。作为切换的结果，在存储的第一子网和第二子网之间创建子网关系，并且稍后用于通过放置不能在省电模式中使用的网络接口系统来控制无线通信设备如何使用电力。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式