公开(公告)号：US6154461A

公开(公告)日：2000-11-28

申请号：US856122

申请日：1997-05-14

申请人： Emil A. Sturniolo ,  Frank D. Ciotti, Jr. ,  Krishna P. Seshadri

发明人： Emil A. Sturniolo ,  Frank D. Ciotti, Jr. ,  Krishna P. Seshadri

IPC分类号： H04L12/28 ,  H04L12/46

CPC分类号： H04W36/18 ,  H04L67/14 ,  H04L67/148 ,  H04L29/12066 ,  H04L61/1511 ,  H04W60/00 ,  H04W8/087 ,  H04W8/26 ,  H04W84/12 ,  H04W88/16 ,  H04W92/02

摘要： The present invention relates to wireless communication systems involving multiple local area networks. A communication system according to the present invention includes a plurality of local area networks (LANs). Each of the LANs includes: a network backbone; and at least one access point coupled to the network backbone which, when a mobile terminal is registered to the access point, enables the mobile terminal to communicate wirelessly with a device on the network backbone via the at least one access point. When the mobile terminal is registered to at least one access point in one of the plurality of LANs the mobile terminal is assigned a first network address, and when the mobile terminal is registered to at least one access point in another of the plurality of LANs the mobile terminal is assigned a second network address in place of the first network address, the second network address being different from the first network address. The mobile communication system also includes a system backbone interconnecting the plurality of LANs for permitting communications between the plurality of LANs. Furthermore, the system includes a gateway controller, operatively coupled to one of the plurality of LANs, for serving as an intermediary for communications between the mobile terminal and a device on one of the system backbones in order that in the event the mobile terminal is assigned a different network address by virtue of registering with an access point in another of the LANs, the device is able to maintain communications with the mobile terminal without requiring knowledge of a change in the network address of the mobile terminal.

摘要翻译： 本发明涉及涉及多个局域网的无线通信系统。 根据本发明的通信系统包括多个局域网（LAN）。 每个LAN包括：网络主干; 以及耦合到所述网络骨干网的至少一个接入点，当移动终端向所述接入点注册时，所述至少一个接入点使得所述移动终端能够经由所述至少一个接入点与所述网络骨干网上的设备进行无线通信。 当移动终端被注册到多个LAN中的一个LAN中的至少一个接入点时，移动终端被分配第一网络地址，并且当移动终端向多个LAN中的另一个LAN中的至少一个接入点注册时， 分配移动终端代替第一网络地址，第二网络地址不同于第一网络地址。 移动通信系统还包括互连多个LAN的系统主干，用于允许多个LAN之间的通信。 此外，该系统包括可操作地耦合到多个LAN之一的网关控制器，用作用于移动终端与系统主干之一上的设备之间的通信的中介，以便在移动终端被分配的情况下 通过向另一个LAN中的接入点注册不同的网络地址，该设备能够保持与移动终端的通信，而不需要知道移动终端的网络地址的改变。

公开(公告)号：US06201962B1

公开(公告)日：2001-03-13

申请号：US08957256

申请日：1997-10-24

申请人： Emil A. Sturniolo ,  Frank D. Ciotti, Jr. ,  Krishna P. Seshadri

发明人： Emil A. Sturniolo ,  Frank D. Ciotti, Jr. ,  Krishna P. Seshadri

IPC分类号： H04Q720

CPC分类号： H04W36/18 ,  H04L29/12066 ,  H04L61/1511 ,  H04L67/14 ,  H04L67/148 ,  H04W8/087 ,  H04W8/26 ,  H04W60/00 ,  H04W76/10 ,  H04W76/20 ,  H04W84/12 ,  H04W88/16 ,  H04W92/02

摘要： The present invention relates to wireless communication systems involving multiple local area networks. A communication system according to the present invention includes a plurality of local area networks (LANs). Each of the LANs includes: a network backbone; and at least one access point coupled to the network backbone which, when a mobile terminal is registered to the access point, enables the mobile terminal to communicate wirelessly with a device on the network backbone via the at least one access point. When the mobile terminal is registered to at least one access point in one of the plurality of LANs the mobile terminal is assigned a first network address, and when the mobile terminal is registered to at least one access point in another of the plurality of LANs the mobile terminal is assigned a second network address in place of the first network address, the second network address being different from the first network address. The mobile communication system also includes a system backbone interconnecting the plurality of LANs for permitting communications between the plurality of LANs. Furthermore, the system includes a gateway controller, operatively coupled to one of the plurality of LANs, for serving as an intermediary for communications between the mobile terminal and a device on one of the system backbones in order that in the event the mobile terminal is assigned a different network address by virtue of registering with an access point in another of the LANs, the device is able to maintain communications with the mobile terminal without requiring knowledge of a change in the network address of the mobile terminal. In addition, the gateway controller permits sessions to be suspended temporarily and resumed using a different mobile terminal.

摘要翻译： 本发明涉及涉及多个局域网的无线通信系统。 根据本发明的通信系统包括多个局域网（LAN）。 每个LAN包括：网络主干; 以及耦合到所述网络骨干网的至少一个接入点，当移动终端向所述接入点注册时，所述至少一个接入点使得所述移动终端能够经由所述至少一个接入点与所述网络骨干网上的设备进行无线通信。 当移动终端被注册到多个LAN中的一个LAN中的至少一个接入点时，移动终端被分配第一网络地址，并且当移动终端向多个LAN中的另一个LAN中的至少一个接入点注册时， 分配移动终端代替第一网络地址，第二网络地址不同于第一网络地址。 移动通信系统还包括互连多个LAN的系统主干，用于允许多个LAN之间的通信。 此外，该系统包括可操作地耦合到多个LAN之一的网关控制器，用作用于移动终端与系统主干之一上的设备之间的通信的中介，以便在移动终端被分配的情况下 通过向另一个LAN中的接入点注册不同的网络地址，该设备能够保持与移动终端的通信，而不需要知道移动终端的网络地址的改变。 此外，网关控制器允许临时暂停会话，并使用不同的移动终端恢复会话。

公开(公告)号：US6091951A

公开(公告)日：2000-07-18

申请号：US922709

申请日：1997-09-03

申请人： Emil A. Sturniolo ,  Frank D. Clotti, Jr. ,  Krishna P. Seshadri

发明人： Emil A. Sturniolo ,  Frank D. Clotti, Jr. ,  Krishna P. Seshadri

IPC分类号： H04L12/28 ,  H04Q7/20

CPC分类号： H04W76/04 ,  H04L67/14 ,  H04L67/148 ,  H04W36/18 ,  H04L29/12066 ,  H04L61/1511 ,  H04W60/00 ,  H04W76/02 ,  H04W8/087 ,  H04W8/26 ,  H04W84/12 ,  H04W88/16 ,  H04W92/02

摘要： The present invention relates to wireless communication systems involving multiple local area networks. A communication system according to the present invention includes a plurality of local area networks (LANs). Each of the LANs includes: a network backbone; and at least one access point coupled to the network backbone which, when a mobile terminal is registered to the access point, enables the mobile terminal to communicate wirelessly with a device on the network backbone via the at least one access point. When the mobile terminal is registered to at least one access point in one of the plurality of LANs the mobile terminal is assigned a first network address, and when the mobile terminal is registered to at least one access point in another of the plurality of LANs the mobile terminal is assigned a second network address in place of the first network address, the second network address being different from the first network address. The mobile communication system also includes a system backbone interconnecting the plurality of LANs for permitting communications between the plurality of LANs. Furthermore, the system includes a gateway controller, operatively coupled to one of the plurality of LANs, for serving as an intermediary for communications between the mobile terminal and a device on one of the system backbones in order that in the event the mobile terminal is assigned a different network address by virtue of registering with an access point in another of the LANs, the device is able to maintain communications with the mobile terminal without requiring knowledge of a change in the network address of the mobile terminal.