(12) United States Patent
`Hanson et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 7,136,645 B2
`Nov. 14, 2006
`
`US007136645B2
`
`(54)
`
`(75)
`
`(73)
`
`(*)
`
`(21)
`(22)
`(65)
`
`METHOD AND APPARATUS FOR
`PROVIDING MOBILE AND OTHER
`INTERMITTENT CONNECTIVITY IN A
`COMPUTING ENVIRONMENT
`Inventors: Aaron D. Hanson, Seattle, WA (US);
`Emil A. Sturniolo, Medina, OH (US);
`Anatoly Menn, Seattle, WA (US); Erik
`D. Olson, Seattle, WA (US); Joseph T.
`Savarese, Edmonds, WA (US)
`Netmotion Wireless, Inc., Seattle, WA
`(US)
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 402 days.
`Appl. No.: 10/078,377
`
`Assignee:
`
`Notice:
`
`Filed:
`
`Feb. 21, 2002
`
`Prior Publication Data
`US 2002fOO9884.0 A1
`Jul. 25, 2002
`
`(60)
`
`(63)
`
`Related U.S. Application Data
`Continuation-in-part of application No. 09/660,500,
`filed on Sep. 12, 2000, which is a continuation-in-part
`of application No. 09/330,310, filed on Jun. 11, 1999,
`now Pat. No. 6,546,425.
`Provisional application No. 60/274,615, filed on Mar.
`12, 2001, provisional application No. 60/176,305,
`filed on Jan. 18, 2000, provisional application No.
`60/103,598, filed on Oct. 9, 1998.
`Foreign Application Priority Data
`(30)
`Sep. 12, 2001
`(WO) ..................... PCT/USO1/28391
`
`(51)
`
`(52)
`
`(58)
`
`Int. C.
`(2006.01)
`H04O 7/20
`455/435:455/432; 709/225;
`U.S. Cl. ......................
`709/249; 709/250
`Field of Classification Search ................ 455/432,
`455/435; 709/225, 250, 249
`See application file for complete search history.
`
`
`
`(56)
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`4,697.281 A
`
`9, 1987 O’Sullivan
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`(Continued)
`FOREIGN PATENT DOCUMENTS
`
`EP
`
`O 998 094 A2
`
`5, 2000
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`OTHER PUBLICATIONS
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`(Continued)
`Primary Examiner Joseph Feild
`Assistant Examiner Pierre-Louis Desir
`(74) Attorney, Agent, or Firm Nixon & Vanderhye P.C.
`
`(57)
`
`ABSTRACT
`
`A seamless Solution transparently addresses the character
`istics of nomadic systems, and enables existing network
`applications to run reliably in mobile environments. A
`Mobility Management Server coupled to the mobile network
`maintains the state of each of any number of Mobile End
`Systems and handles the complex session management
`required to maintain persistent connections to the network
`and to other peer processes. If a Mobile End System
`becomes unreachable, Suspends, or changes network address
`(e.g., due to roaming from one network interconnect to
`another), the Mobility Management Server maintains the
`connection to the associated peer task—allowing the Mobile
`End System to maintain a continuous connection even
`though it may temporarily lose contact with its network
`medium. An interface-based listener uses network point of
`attachment information Supplied by a network interface to
`determine roaming conditions and to efficiently reestablish
`connection upon roaming. The Mobility Management
`Server can distribute lists to Mobile End Systems specifying
`how to contact it over disjoint networks.
`
`105 Claims, 40 Drawing Sheets
`
`MobileEnd
`Sysian
`
`Moe end
`System
`33 -1
`
`:
`s
`C
`; , "g
`ystem
`. .
`. . of
`T.
`N-te
`
`r 20
`
`Moisy Managemeil System
`(2
`
`Mobilenc
`
`iO4
`s
`system
`h".
`
`10m
`
`
`
`System
`
`Cloudflare - Exhibit 1075, page 1
`
`

`

`US 7,136,645 B2
`Page 2
`
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`Cloudflare - Exhibit 1075, page 2
`
`

`

`US 7,136,645 B2
`Page 3
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