[특허]Dynamic forward assignment of internet protocol addresses in wireless networks

[미국특허] Dynamic forward assignment of internet protocol addresses in wireless networks 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04Q-007/00 H04Q-007/20
출원번호	US-0794859 (2001-02-27)
발명자 / 주소	Agrawal, Prathima Kodama, Toshikazu Vakil, Faramak Zhang, Tao
출원인 / 주소	Telcordia Technologies, Inc. Toshiba America Research, Inc.
인용정보	피인용 횟수 : 19 인용 특허 : 7

초록 ▼

A method and system for dynamic forward assignment of IP addresses in a wireless network wherein a serving base station requests IP addresses of it neighboring cells. The serving base station then provides the requested IP addresses to the mobile stations it serves based on whether the mobile station will be entering a particular neighboring cell. Immediately upon entering the neighboring cell the mobile station establishes over the air communications with the neighboring cell's base station using one of the requested addresses. In another embodiment of the present invention each mobile unit is responsible for attaining IP addresses from the base stations of neighboring cells. Accordingly, the base stations serve as relay points for the IP address requests from the mobile unit to an address server.

대표청구항 ▼

1. A method for assigning internet protocol addresses in a wireless network, said method comprising the steps of:requesting, by a serving base station, internet protocol addresses from neighboring base stations;sending, from each requested neighboring base station, at least one internet protocol address allocated for use by a mobile station to said serving base station;sending, by the serving base station, a list of said requested internet protocol addresses allocated to the mobile station;assigning one of said internet protocol addresses included in said sent list to the mobile station; andstoring said list in a forward address table in said mobile station, andwherein said step of requesting comprises the steps of requesting internet protocol addresses only from the set of neighboring base stations with which the mobile station currently has radio contact and sending the necessary information about the mobile station user for IP-layer authentication to a neighboring base station.

이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

Orsic Milo, Address updating of wireless mobile terminal hosts affiliated with a wired network.
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Dolan, Michael F., Method and apparatus for permitting direct handoff between base stations in a wireless network.
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Bhagavath, Vijay K.; O'Neil, Joseph Thomas, Persistent communication with changing environment.
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Yoshinari Kumaki JP; Keiji Tsunoda JP; Shigeo Matsuzawa JP; Noriyasu Kato JP; Osamu Moriya JP; Toshio Okamoto JP, Router device, datagram transfer method and communication system realizing handoff control for mobile terminals.
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Johnson, Philip N, Self-installation of wireless access network terminals.
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Bender, Paul E., System and method for using an IP address as a wireless unit identifier.
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La Porta, Thomas F.; Murakami, Kazutaka; Ramjee, Ramachandran; Thuel, Sandra R.; Varadhan, Kannan, Two phase local mobility scheme for wireless access to packet based networks.
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이 특허를 인용한 특허 (19) 인용/피인용 타임라인 분석

Benning, Gerhard; Klein, Josef, Arrangement for the wireless connection of terminals to a communication system.
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Kitazoe, Masato, Discovery of neighbor cells.
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Daruwalla,Feisal Y., IP subnet sharing technique implemented without using bridging or routing protocols.
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Mudric, Dusan; Musgrave, Peter, Internet protocol address selection in session initiation protocol communications.
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Hanson, Norman L., Internet protocol collaborative mobility.
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Choi, Sungho; Guttman, Erik; Vaidya, Rahul Suhas, Method and system for handling a dynamic host configuration protocol internet protocol version 4 address release.
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Choi, Sungho; Guttman, Erik; Vaidya, Rahul Suhas, Method and system for handling a dynamic host configuration protocol internet protocol version 4 address release.
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Choi, Sungho; Guttman, Erik; Vaidya, Rahul Suhas, Method and system for handling a dynamic host configuration protocol internet protocol version 4 address release.
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Choi, Sungho; Guttman, Erik; Vaidya, Rahul Suhas, Method and system for handling a dynamic host configuration protocol internet protocol version 4 address release.
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Choi, Sungho; Guttman, Erik; Vaidya, Rahul Suhas, Method and system for handling a dynamic host configuration protocol internet protocol version 4 address release.
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Rue, Seon Soo; Lee, Gui Jung, Method and system for supporting mobility of mobile terminal.
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Park, Soo-hong; Kim, Young-keun, Mobile node for obtaining IP address allocation information, data server for providing IP address allocation information, and method of providing IP address allocation information.
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Oba, Yoshihiro; Baba, Shinichi, Mobility architecture using pre-authentication, pre-configuration and/or virtual soft-handoff.
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Liu, Cheng; Cui, Zhi; Fung, Liza; Pandey, Vinod; Smith, Jr., Paul E., Mobility management of wireless networks based on multipath transfer control protocol.
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Mohammed,Yunus; Cohen,Michael A.; Kennebec,Joseph A., Providing notifications for domain registration changes.
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Tajima, Yoshiharu, Radio base station apparatus and base station controller.
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Tajima, Yoshiharu, Radio based station apparatus and base station controller.
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Semper,William Joseph, System and method for establishing mobile station-to-mobile station packet data calls directly between base stations of a wireless network.
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Shin, Dong-yun; Choi, Jin-hyeock, Wireless local area network system capable of supporting host mobility and an operation method therefor.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Dynamic forward assignment of internet protocol addresses in wireless networks 원문보기