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1. 发明授权

US06999434B1 Method, system and circuitry for soft handoff in internet protocol-based code division multiple access networks 有权
标题翻译：用于基于互联网协议的码分多址网络中的软切换的方法，系统和电路
公开(公告)号：US06999434B1
公开(公告)日：2006-02-14
申请号：US09723366
申请日：2000-11-28
申请人： Prathima Agrawal , Shinichi Baba , Tadahiko Maeda , Tao Zhang
发明人： Prathima Agrawal , Shinichi Baba , Tadahiko Maeda , Tao Zhang
IPC分类号： H04Q7/00
CPC分类号： H04W36/18 , H04L69/32 , H04W36/0033 , H04W36/30 , H04W80/04
摘要： Method, system, and circuitry for successfully completing soft handoff in an Internet Protocol (IP) based autonomous base station wireless Code Division Multiple Access network, wherein processing is done at the serving base station so that target base stations need only set up the channel for transmitting the copied data needed for soft handoff. Concomitant circuitry comprises packet data multiplexers/assemblers and demultiplexers/de-assemblers for performing cross-layer switching. Data packets are sent by a serving base station to a mobile unit while the mobile is in a soft handoff region. The serving base station also sends copies of the data packets to target base stations, the target base stations in turn relay these data packets to the mobile. The mobile synchronizes the copies of the data packets received and combines the packets to recover the data.
摘要翻译：用于在基于因特网协议（IP）的自主基站无线码分多址网络中成功完成软切换的方法，系统和电路，其中在服务基站进行处理，使得目标基站仅需要建立用于传输软切换所需的复制数据。伴随电路包括用于执行跨层交换的分组数据复用器/汇编器和解复用器/解组装器。当移动台处于软切换区域时，服务基站将数据分组发送到移动单元。服务基站还向目标基站发送数据分组的副本，目标基站又将这些数据分组传送到移动台。移动台同步收到的数据包的副本，并组合数据包以恢复数据。

2. 发明授权

US07480272B2 Soft handoff in IP-based CDMA networks by IP encapsulation 有权
标题翻译：通过IP封装在基于IP的CDMA网络中的软切换
公开(公告)号：US07480272B2
公开(公告)日：2009-01-20
申请号：US09822822
申请日：2001-04-02
申请人： Shinichi Baba , Tadahiko Maeda , Tao Zhang , Prathima Agrawal
发明人： Shinichi Baba , Tadahiko Maeda , Tao Zhang , Prathima Agrawal
IPC分类号： H04J1/16 , H04J3/14 , H04L12/26
CPC分类号： H04W36/0011 , H04W36/18 , H04W80/04
摘要： For IP-based wireless systems in which base stations are connected by an IP network and communication among base stations is not controlled by the centralized management, a new system and method for realizing soft handoff by using encapsulation in order to distribute and gather a reproduced packet by the serving base station with other base stations and to transfer the serving role between the base stations as the mobile station moves is described.
摘要翻译：对于通过IP网络连接基站并且基站之间的通信的基于IP的无线系统不受集中管理的控制，通过使用封装来实现软切换以便分发和收集再现分组的新系统和方法描述服务基站与其他基站并且在移动站移动时在基站之间传送服务角色。

3. 发明授权

US08792454B2 Secure and seamless WAN-LAN roaming 有权
标题翻译：安全无缝的WAN-LAN漫游
公开(公告)号：US08792454B2
公开(公告)日：2014-07-29
申请号：US13554711
申请日：2012-07-20
申请人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
发明人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
IPC分类号： H04W4/00 , H04W80/04 , H04W84/12 , H04L29/06
CPC分类号： H04L63/1458 , H04L29/06088 , H04L63/02 , H04L63/0272 , H04L63/0428 , H04L63/061 , H04L63/164 , H04L69/14 , H04L69/161 , H04W8/02 , H04W12/06 , H04W80/04 , H04W80/045 , H04W84/12
摘要： Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
摘要翻译：描述了内部和外部网络之间的安全和无缝漫游的系统和方法。双重和三重隧道可用于将移动节点连接到通讯主机。移动节点可以包括同时连接到两个网络的能力，以实现网络之间的无缝漫游。

4. 发明授权

US08243687B2 Secure and seamless WAN-LAN roaming 有权
标题翻译：安全无缝的WAN-LAN漫游
公开(公告)号：US08243687B2
公开(公告)日：2012-08-14
申请号：US13164874
申请日：2011-06-21
申请人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
发明人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
IPC分类号： H04W4/00
CPC分类号： H04L63/1458 , H04L29/06088 , H04L63/02 , H04L63/0272 , H04L63/0428 , H04L63/061 , H04L63/164 , H04L69/14 , H04L69/161 , H04W8/02 , H04W12/06 , H04W80/04 , H04W80/045 , H04W84/12
摘要： Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
摘要翻译：描述了内部和外部网络之间的安全和无缝漫游的系统和方法。双重和三重隧道可用于将移动节点连接到通讯主机。移动节点可以包括同时连接到两个网络的能力，以实现网络之间的无缝漫游。

5. 发明申请

US20050163079A1 Secure and seamless WAN-LAN roaming 有权
标题翻译：安全无缝的WAN-LAN漫游
公开(公告)号：US20050163079A1
公开(公告)日：2005-07-28
申请号：US10895411
申请日：2004-07-21
申请人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba , Sunil Madhani
发明人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba , Sunil Madhani
IPC分类号： H04L12/28 , H04L29/06 , H04W8/02 , H04W12/06 , H04W36/00 , H04W36/14 , H04W80/04 , H04Q7/00
CPC分类号： H04L63/1458 , H04L29/06088 , H04L63/02 , H04L63/0272 , H04L63/0428 , H04L63/061 , H04L63/164 , H04L69/14 , H04L69/161 , H04W8/02 , H04W12/06 , H04W80/04 , H04W80/045 , H04W84/12
摘要： Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
摘要翻译：描述了内部和外部网络之间的安全和无缝漫游的系统和方法。双重和三重隧道可用于将移动节点连接到通讯主机。移动节点可以包括同时连接到两个网络的能力，以实现网络之间的无缝漫游。

6. 发明授权

US07978655B2 Secure and seamless WAN-LAN roaming 有权
标题翻译：安全无缝的WAN-LAN漫游
公开(公告)号：US07978655B2
公开(公告)日：2011-07-12
申请号：US10895411
申请日：2004-07-21
申请人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
发明人： Kenichi Taniuchi , Tao Zhang , Prathima Agrawal , Ashutosh Dutta , Sunil Madhani , Shinichi Baba , Kensaku Fujimoto , Yasuhiro Katsube , Toshikazu Kodama , Yoshihiro Ohba
IPC分类号： H04W4/00
CPC分类号： H04L63/1458 , H04L29/06088 , H04L63/02 , H04L63/0272 , H04L63/0428 , H04L63/061 , H04L63/164 , H04L69/14 , H04L69/161 , H04W8/02 , H04W12/06 , H04W80/04 , H04W80/045 , H04W84/12
摘要： Systems and methods are described for secure and seamless roaming between internal and external networks. Double and triple tunnels may be used to connect a mobile node to a correspondent host. A mobile node may include the ability to connect to two networks simultaneously to enable seamless roaming between networks.
摘要翻译：描述了内部和外部网络之间的安全和无缝漫游的系统和方法。双重和三重隧道可用于将移动节点连接到通讯主机。移动节点可以包括同时连接到两个网络的能力，以实现网络之间的无缝漫游。

7. 发明授权

US08631104B2 System and method for quality of service management in mobile wireless networks 有权
标题翻译：移动无线网络服务质量管理系统和方法
公开(公告)号：US08631104B2
公开(公告)日：2014-01-14
申请号：US09946796
申请日：2001-09-06
申请人： Prathima Agrawal , Shinichi Baba , Faramak Vakil
发明人： Prathima Agrawal , Shinichi Baba , Faramak Vakil
IPC分类号： G06F15/173
CPC分类号： H04L41/0896 , H04L41/142 , H04L41/147 , H04W28/24 , H04W28/26 , H04W36/08 , H04W64/006 , H04W72/0453
摘要： A system and method are provided by which a wireless network service provider is able to provide and maintain a high level of quality of service for terminals in the corresponding network, by overcoming problems that result in a diminished quality of service, including handoff delays as terminals move between cells in a network and the uncertainly as to which cell the individual terminals are moving to as they roam within the network. Providing and maintaining a high level of quality of service in a wireless network includes recording a history of movements of a terminal within the wireless network, analyzing the movements of the terminal within the wireless network to compute a probability distribution of the terminal's target location, and allocating network resources, including bandwidth and priority scheme, to the terminal based on the probability distribution for the terminal.
摘要翻译：提供了一种系统和方法，通过该系统和方法，无线网络服务提供商能够通过克服导致服务质量降低的问题（包括作为终端的切换延迟）来提供并维持相应网络中的终端的高水平的服务质量在网络中的小区之间移动，并且不确定地指出当各个终端在网络内漫游时移动到哪个小区。在无线网络中提供和维持高水平的服务质量包括记录终端在无线网络内的移动历史，分析无线网络内的终端的移动以计算终端的目标位置的概率分布，以及基于终端的概率分布向终端分配包括带宽和优先级方案的网络资源。

8. 发明授权

US07848312B2 Method and systems for toll-free internet protocol communication services 有权
标题翻译：用于免费网际协议通信服务的方法和系统
公开(公告)号：US07848312B2
公开(公告)日：2010-12-07
申请号：US11007868
申请日：2004-12-09
申请人： Tao Zhang , Miriam Tauil , Sunil Hukmichand Madhani , Prathima Agrawal , Toshikazu Kodama
发明人： Tao Zhang , Miriam Tauil , Sunil Hukmichand Madhani , Prathima Agrawal , Toshikazu Kodama
IPC分类号： H04L12/56
CPC分类号： H04L12/14 , G06Q10/02 , H04L12/1464 , H04L12/1467 , H04L12/1471
摘要： This document describes Toll Free IP (TIP), a business model and its enabling methods to provide no-charge-to-user (“toll-free”) connectivity through IP-based access networks (e.g., public wireless hotspot networks based on IEEE 802.11), which may be operated by different network operators. With TIP, the use of networks to communicate with a toll-free IP destination will be paid by the owner of the toll-free IP destination. A toll-free IP destination can be identified in many ways, e.g., by a toll-free IP address, toll-free Internet Domain Name, a toll-free Universal Resource Identifier or Universal Resource Locator. TIP enables a user to use networks without prior service subscriptions with network or service providers and without any special terminal software or hardware for gaining permission to use a network. It allows users to use more access networks, i.e., larger “footprints”, than any individual network operator or aggregator can provide. With TIP, a service provider can provide services over IP-based access networks without the need to have business arrangements with each individual network operator or aggregator. TIP can also be used to enable other value-added services such as Prepaid IP, Collect IP, Selective Charging, and a single prepaid account across access networks of multiple operators or aggregators and even across wireless LANs (e.g., public hotspots and enterprise wireless LANs) and cellular networks.
摘要翻译：本文档描述了免费IP（TIP），一种商业模式及其通过基于IP的接入网络（例如，基于IEEE的公共无线热点网络）提供免费到用户（“免费”）连接的启用方法 802.11），其可以由不同的网络运营商操作。通过TIP，使用网络与免费IP目的地通信将由免费IP目的地的所有者支付。可以通过许多方式来识别免费的IP目的地，例如通过免费IP地址，免费因特网域名，免费通用资源标识符或通用资源定位器。 TIP使用户能够使用网络，而不需要网络或服务提供商进行先前的服务订阅，并且没有任何特殊的终端软件或硬件来获得使用网络的权限。它允许用户使用比任何单独的网络运营商或聚合器可以提供的更多的接入网络，即更大的“足迹”。通过TIP，服务提供商可以通过基于IP的接入网络提供服务，而无需与每个单独的网络运营商或聚合商进行业务安排。 TIP还可用于启用其他增值服务，如预付费IP，收集IP，选择性收费以及跨多个运营商或聚合商的接入网络以及甚至跨无线LAN（例如，公共热点和企业无线局域网）的单个预付帐户）和蜂窝网络。

9. 发明授权

US07031278B2 Network-layer and link-layer use of shadow addresses in soft handoff within subnets 有权
公开(公告)号：US07031278B2
公开(公告)日：2006-04-18
申请号：US09975801
申请日：2001-10-12
申请人： Prathima Agrawal , Jyh-Cheng Chen , Tao Zhang
发明人： Prathima Agrawal , Jyh-Cheng Chen , Tao Zhang
IPC分类号： H04Q7/24
CPC分类号： H04W36/18 , H04L29/12018 , H04L29/12311 , H04L61/10 , H04L61/2084 , H04W80/00
摘要： A technique for assigning an address (“shadow address”) to a mobile station that is compatible with the layer-2 address on the wireline network which serves the mobile station. The shadow address is then used as a wireline identifier for the destination address for frames ultimately destined for the mobile station. The shadow address is stored in a watch list for serving base stations, and any base station receiving a frame with a shadow address in its watch list process the frame to forward it the to mobile station. In this way, the shadow address facilitates carrying out soft handoff and smooth handoff.

10. 发明授权

US07002936B2 Distributed soft handoff among IP-based base stations 有权
标题翻译：基于IP的基站之间的分布式软切换
公开(公告)号：US07002936B2
公开(公告)日：2006-02-21
申请号：US09976166
申请日：2001-10-12
申请人： Prathima Agrawal , Jyh-Cheng Chen , Tao Zhang
发明人： Prathima Agrawal , Jyh-Cheng Chen , Tao Zhang
IPC分类号： H04Q7/00
CPC分类号： H04W36/18 , H04L29/12018 , H04L29/12311 , H04L61/10 , H04L61/2084 , H04W80/00
摘要： A technique for assigning an address (“shadow address”) to a mobile station that is compatible with the layer-2 address on the wireline network which serves the mobile station. The shadow address is then used as a wireline identifier for the destination address for frames ultimately destined for the mobile station. The shadow address is stored in a watch list for serving base stations, and any base station receiving a frame with a shadow address in its watch list process the frame to forward it the to mobile station. In this way, the shadow address facilitates carrying out soft handoff and smooth handoff.
摘要翻译：一种用于将地址（“影子地址”）分配给与服务于移动站的有线网络上的第2层地址兼容的移动站的技术。然后，阴影地址用作目的地址的有线标识符，用于最终发往移动台的帧。阴影地址存储在服务基站的观察列表中，并且在其观察列表中接收具有影子地址的帧的任何基站处理该帧以将其转发到移动台。这样，阴影地址便于实现软切换和平滑切换。

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