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1. 发明授权

US07257409B2 Centralized cell homing and load balancing in a base station controller 有权
标题翻译：基站控制器中的集中式电池归位和负载均衡
公开(公告)号：US07257409B2
公开(公告)日：2007-08-14
申请号：US10813774
申请日：2004-03-31
申请人： Mun-Choon Chan , Martin Havemann , Ramachandran Ramjee , Sandra R. Thuel , Thomas Y. Woo
发明人： Mun-Choon Chan , Martin Havemann , Ramachandran Ramjee , Sandra R. Thuel , Thomas Y. Woo
IPC分类号： H04Q7/20 , H04B1/38 , H04M1/00 , G01R31/08 , G06F11/00
CPC分类号： H04W28/08 , H04W88/08
摘要： A base station controller (BSC) of a radio or wireless telecommunications network base station includes a director. A BSC includes multiple central processing units (CPUs), with each CPU running a call-processing application for one or more connections. The director is a logical entity that intercepts wireless call-setup signaling and assigns each corresponding connection to a CPU according to a centralized load-balancing algorithm. The centralized load-balancing algorithm distributes connections to less loaded CPUs to i) prevent individual CPUs from overloading, ii) utilize otherwise unused system resources, and iii) increase overall system performance. The director hosts cell components that manage code division multiple access (CDMA) downlink spreading codes for a base station, providing centralized allocation of spreading codes by the base station.
摘要翻译：无线电或无线电信网络基站的基站控制器（BSC）包括导向器。 BSC包括多个中央处理单元（CPU），每个CPU为一个或多个连接运行呼叫处理应用程序。导演是一个逻辑实体，拦截无线呼叫建立信令，并根据集中式负载平衡算法将每个对应的连接分配给CPU。集中式负载均衡算法将连接分配到负载较少的CPU，以防止个别CPU过载，ii）利用未使用的系统资源，以及iii）提高整体系统性能。主管负责管理用于基站的码分多址（CDMA）下行链路扩展码的小区组件，提供基站对扩展码的集中分配。

2. 发明授权

US07239618B1 Single phase local mobility scheme for wireless access to packet-based networks 失效
标题翻译：用于无线接入基于分组的网络的单相本地移动性方案
公开(公告)号：US07239618B1
公开(公告)日：2007-07-03
申请号：US09210213
申请日：1998-12-11
申请人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
发明人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
IPC分类号： H04Q7/00
CPC分类号： H04L61/2015 , H04L29/06 , H04L29/12018 , H04L29/12216 , H04L29/12301 , H04L29/12311 , H04L29/12801 , H04L61/10 , H04L61/2076 , H04L61/2084 , H04L61/6004 , H04W8/087 , H04W36/04 , H04W80/04
摘要： Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain. The routing table entries are established and updated via path setup schemes to convey packets destined for the mobile device along the proper established path through the domain routers and base stations, regardless of the domain base station through which the mobile device is attached. Path setup schemes utilize power up, refresh, and handoff path setup messages to maintain the proper relationship between router interfaces and packet addresses for routing table entries.
摘要翻译：通过对无线基站进行分类来支持子网内的本地移动性，并且用于将数据包转发到定义域内的那些基站的路由器。域定义为包含具有多个基站的子网。移动设备使用基站来附加到诸如因特网的基于分组的网络的有线部分，并且与对应节点交换分组。从通信节点发送到移动设备的分组具有对应于移动设备的分组目的地地址。移动设备在其被加电并且经由给定域内的任何基站连接到因特网的时间内保留该地址。基于主机的路由用于在单个域内的路由器上更新与移动设备相对应的路由表条目。通过路径设置方案建立和更新路由表条目，以便通过域路由器和基站传送去往移动设备的分组沿着适当的建立路径，而不管移动设备通过哪个域基站。路径设置方案利用上电，刷新和切换路径建立消息来维护路由器接口和路由表条目的包地址之间的适当关系。

3. 发明授权

US07554967B1 Transient tunneling for dynamic home addressing on mobile hosts 有权
标题翻译：在移动主机上进行动态家庭寻址的瞬态隧道
公开(公告)号：US07554967B1
公开(公告)日：2009-06-30
申请号：US09662531
申请日：2000-09-15
申请人： Kannan Varadhan , Thomas F La Porta , Ramachandran Ramjee , Luca Salgarelli , Sandra R Thuel
发明人： Kannan Varadhan , Thomas F La Porta , Ramachandran Ramjee , Luca Salgarelli , Sandra R Thuel
IPC分类号： H04L12/28
CPC分类号： H04W8/26 , H04W8/04 , H04W60/00 , H04W80/04
摘要： Portable and/or mobile IP hosts desiring to connect to the Internet can dynamically acquire a home address and other configuration information through DHCP when powering up in a foreign network. A two-stage configuration procedure is used. First, the mobile host uses the M-IP protocol to establish contact with an addressing element, referred to as a bootstrapping agent, that is usually co-located with a M-IP Home Agent, and that allocates a temporary home address for the mobile host. The temporary address is used to create a temporary tunnel. Second, this temporary tunnel is used as the communication vehicle over which standard DHCP transactions take place. The present invention is thus arranged to use a) M-IP as the signaling mechanism for reaching the home network and dynamically allocating a temporary home address for the mobile host; and b) DHCP to allocate a permanent home address and any other configuration state for the mobile host.
摘要翻译：希望连接到互联网的便携式和/或移动IP主机可以在外部网络中上电时通过DHCP动态获取家庭地址和其他配置信息。使用两阶段配置步骤。首先，移动主机使用M-IP协议与通常与M-IP归属代理共同定位的寻址元素（称为引导代理）建立联系，并且为移动终端分配临时归属地址主办。临时地址用于创建临时隧道。第二，这个临时隧道被用作通过标准DHCP交易发生的通信工具。因此，本发明被设计为使用a）M-IP作为到达家庭网络的信令机制，并为移动主机动态分配临时家庭地址; 和b）DHCP为移动主机分配永久家庭住址和任何其他配置状态。

4. 发明授权

US06763007B1 Two phase local mobility scheme for wireless access to packet based networks 有权
标题翻译：用于无线接入基于分组的网络的两相本地移动性方案
公开(公告)号：US06763007B1
公开(公告)日：2004-07-13
申请号：US09209705
申请日：1998-12-11
申请人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
发明人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
IPC分类号： H04Q700
CPC分类号： H04W8/082 , H04L45/02 , H04W8/087 , H04W80/04
摘要： Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Packets sent from the correspondent node to the mobile device have a packet destination address corresponding to the mobile device. The mobile device retains this address for the duration of time it is powered up and attached to the Internet via any base station within a given domain. Host-based routing is utilized to update routing table entries corresponding to the mobile device at routers incorporated within a single domain. The routing table entries are established and updated via path setup schemes to convey packets destined for the mobile device along the proper established path through the domain routers and base stations, regardless of the domain base station through which the mobile device is attached. Path setup schemes utilize power up, refresh, and handoff path setup messages to maintain the proper relationship between router interfaces and packet addresses for routing table entries.
摘要翻译：通过对无线基站进行分类来支持子网内的本地移动性，并且用于将数据包转发到定义域内的那些基站的路由器。域定义为包含具有多个基站的子网。移动设备使用基站来附加到诸如因特网的基于分组的网络的有线部分，并且与对应节点交换分组。从通信节点发送到移动设备的分组具有对应于移动设备的分组目的地地址。移动设备在其被加电并且经由给定域内的任何基站连接到因特网的时间内保留该地址。基于主机的路由用于在单个域内的路由器上更新与移动设备相对应的路由表条目。通过路径设置方案建立和更新路由表条目，以便通过域路由器和基站传送去往移动设备的分组沿着适当的建立路径，而不管移动设备通过哪个域基站。路径设置方案利用上电，刷新和切换路径建立消息来维护路由器接口和路由表条目的包地址之间的适当关系。

5. 发明授权

US06654359B1 Wireless access to packet-based networks 失效
标题翻译：无线接入基于分组的网络
公开(公告)号：US06654359B1
公开(公告)日：2003-11-25
申请号：US09210072
申请日：1998-12-11
申请人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
发明人： Thomas F. La Porta , Kazutaka Murakami , Ramachandran Ramjee , Sandra R. Thuel , Kannan Varadhan
IPC分类号： H04J1228
CPC分类号： H04L61/2015 , H04L29/12216 , H04L29/12301 , H04L29/12311 , H04L29/12801 , H04L61/2076 , H04L61/2084 , H04L61/6004 , H04W40/248 , H04W40/28 , H04W40/36 , H04W80/04 , H04W88/005
摘要： Domains are defined to incorporate a subnet including a plurality of base stations and routers. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a correspondent node. Local mobility between domain base stations is provided by including and updating routing table entries at domain routers and base stations for forwarding packets having a mobile device's address as a destination address to the mobile device. Packets are delivered to the mobile device regardless of the domain base station to which the mobile device is attached. When a mobile device is attached to a base station included within a foreign domain, a care-of address is assigned, and packets are tunneled for delivery of packets to the mobile device. Only one care-of address is required per mobile device per foreign domain. Routing table entries used for packet delivery are updated on a purely local subnet basis within domains, whether home domain or foreign domain, making handoffs between base stations substantially transparent to the home agent and the correspondent node.
摘要翻译：域被定义为并入包括多个基站和路由器的子网。移动设备使用基站来附加到诸如因特网的基于分组的网络的有线部分，并且与对应节点交换分组。通过在域路由器和基站处包括和更新路由表条目来提供域基站之间的本地移动，用于将具有移动设备地址的分组转发到移动设备。无论移动设备连接到的域基站如何，都将数据包传送到移动设备。当移动设备附接到包含在外部域中的基站时，分配转交地址，并且分组被隧道传送到移动设备的分组。每个移动设备每个外国域只需要一个转交地址。用于分组传递的路由表条目在域内纯属于本地子网进行更新，无论是归属域还是外部域，使基站之间的切换对归属代理和通信节点基本上是透明的。

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