USOO73 82771B2
`
`(12) United States Patent
`US 7,382,771 B2
`(10) Patent No.:
`Leblanc et al.
`Jun. 3, 2008
`(45) Date of Patent:
`
`(54)
`
`(75)
`
`MOBILE WIRELESS HOTSPOT SYSTEM
`
`Inventors: Larry Leblanc, New Westminster
`(CA); Kirk Moir, New Westminster
`(CA); Eddie Ho, Burnaby (CA)
`
`(73)
`
`Assignee:
`
`In Motion Technology, Inc. (CA)
`
`(*)
`
`Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 1034 days.
`
`(21)
`
`Appl. No.: 10/386,691
`
`(22)
`
`Filed:
`
`Mar. 13, 2003
`
`(65)
`
`Prior Publication Data
`
`US 2004/0179512 A1
`
`Sep. 16, 2004
`
`Int. Cl.
`
`(51)
`
`(2006.01)
`H04L 12/66
`(2006.01)
`H04Q 7/24
`(2006.01)
`H04Q 7/00
`US. Cl.
`.......................
`370/352; 370/338; 370/328
`Field of Classification Search ................ 370/352,
`370/338, 328
`See application file for complete search history.
`
`(52)
`(58)
`
`(56)
`
`References Cited
`U.S. PATENT DOCUMENTS
`
`9/1999 Sokal et al.
`5,953,504 A
`6/2002 Kokkinen et al.
`2002/0073240 A1*
`2002/0087335 A1
`7/2002 Meyers et a1.
`12/2002 Weinstein et al.
`2002/0191572 A1
`12/2002 Kalavade et al.
`2002/0191575 A1
`1/2003 Deshpande et al.
`2003/0003933 A1
`.. 370/349
`..
`6/2003 Heinonen et al.
`2003/0112789 A1 *
`2004/0199506 A1 * 10/2004 Shaffer et al,
`................. 707/6
`
`.......... 709/249
`
`* cited by examiner
`
`Primary Examiner7William J Deane
`(74) Attorney, Agent, or FirmiVermette & Co.; Cliiford W.
`Vermette; Denis R. O’Brien
`
`(57)
`
`ABSTRACT
`
`The invention relates to wireless Internet access points, and
`in particular to providing a mobile wireless access point for
`use with high-speed wireless devices.
`In particular,
`the
`system allows client devices configured for short-range,
`high-speed wireless Internet access to use said system to
`access the Internet while in a mobile environment, such as
`a passenger vehicle.
`
`19 Claims, 10 Drawing Sheets
`
`Mobile Vehicle
`
`5
`
`802.11
`
`‘.
`
`\K
`
`x
`
`30
`
`
`
`1..n
`
`802.11
`
`,
`
`J
`
`,x
`
`I;
`
`;
`1
`.
`
`40
`_ ,__..~'
`“9»,,,,,,,,,,
`
`Mobile Hotspot /
`“N“ If"
`802, 1 1
`—l2
`Access Point
`
`l
`
`DHCP
`
`
`
`14
`
`Mobile WAN Interface
`(cg, lxRTT Modern)
`
`41
`
`
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 1
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 1
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 1 0f 10
`
`US 7,382,771 B2
`
`Fixed Location, 6. g. Cofi‘ee Shop
`
`80211
`
`Client Device
`
`..
`
`802.11
`
`Client Device
`
`Hotspot
`
`802.1 1
`
`Access Point
`
`(eg. DSL/Cable Modem)
`
`LAN Router
`
`Fixed WAN Interface
`
`Figure 1
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 2
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 2
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 2 of 10
`
`US 7,382,771 B2
`
`Mobile Vehicle
`
`802.1 1
`
`Client Device
`
`802.11
`
`Client Device
`40 —-—.
`
`
`802,1 1
`
`Access Point
`
`
` LAN Router
` Mobile WAN Interface
`
`
`(6. g. lxRTT Modem)
`
`
`
`Figure 2
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 3
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 3
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 3 of 10
`
`US 7,382,771 B2
`
`Fixed Location (eg. Garage)
`
`
`
`
`WAN Interface
`(e. g. DSL/Cable Modem)
`
`20
`
`
`
`802. l 1
`
`Access Point
`
`
`
`
`
`802.1 1
`Client Device
`
`Parked Vehicle
`
`Mobile Hotsot
`
`
`
`Figure 3
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 4
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 4
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 4 of 10
`
`Us 7,382,771 B2
`
`802.11 Interface
`Client/AP Selectable
`
`__ 12
`
`DHCP
`
`14
`
`LAN Router
`
`16
`
`Server
`
`52 Lo.cal
`
`54
`
`56
`
`Web
`Cache
`
`Hi.t
`
`70
`
`WAN
`
`Manager
`
`058
`Client
`
`SD.tats
`
`64
`
`GPS
`
`68
`
`Mobile WAN Interface
`
`(eg. lxRTT Modem)
`
`__ 42
`
`Figure 4
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 5
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 5
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 5 of 10
`
`US 7,382,771 B2
`
`___________ Kemp]:
`
`Vehicle
`
`User
`802. 1 1
`
`Equipped
`
`
`User
`User
`
`g
`.................
`802. 11
`802. 11
`802. 11
`
`
`5
`Equipped
`Equipped
`Equipped
`
`
`
`
`
`
`Device
`: Devic-
`Device
`
`
`,_
`30
`III
`,E-
`I,” ,.
`
`5
`E
`5
`
`i
`
`::
`
`I’ll
`
`Devic
`
`
`
`
`
`3
`5
`E
`
`i
`
`s
`
`5
`
`40
`
`/
`
`5
`
`E
`
`5
`
`g
`
`/’l
`
`40
`
`‘1‘
`‘~
`
`MHS
`
` Operation Suppon System
`
`
`
`Figure 5
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 6
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 6
`
`

`

`US. Patent
`
`Jun. 3, 2008
`
`Sheet 6 of 10
`
`Us 7,382,771 B2
`
`Local DNS
`Statistics
`
`Local Web
`
`Local DNS
`Statistics
`
`Local Web
`CacheStatistics
`
`Cacheflmtisticg
`
`Figure 6
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 7
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 7
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 7 of 10
`
`Us 7,382,771 B2
`
`
` User starts Web Browser and
`tries to enter a Web page
`
`
`
`
`
`Present Welcome Page and request
`end user to enter login information
`
`
`
`
`Proceed with
`
`the Web pages
`
`— 108
`
`Figure 7
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 8
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 8
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 8 of 10
`
`US 7,382,771 B2
`
`MHS System Start
`
`
`10
`
`
` 12
`
`Retrieve list of most
`
`popular domain
`names from central
`
`08$
`
`Resolve next
`
`
`domain name
`
`
`
` Complete?
`
`
`
`Figure 8
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 9
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 9
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 9 of 10
`
`US 7,382,771 B2
`
`MHS System Start
`
`110
`
`
`
`
`
`Retrieve list of most
`
`popular web sites
`from central 088
`
`20
`
`
`
`124
`
`
`Fetch root page
`
`of next web site
`in list into cache
`
`
`linked to by the root page
`
`
`Recursively fetch (to a
`preset depth) pages
`
`26
`
`Complete?
`
`
`
`Figure 9
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 10
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 10
`
`

`

`U.S. Patent
`
`Jun. 3, 2008
`
`Sheet 10 0f 10
`
`US 7,382,771 B2
`
`160
`
`Establish WAN
`
`Connection
`
`
`
`162
`
`Send Beacon
`To WAN
`
`64
`
`166
`
`
`
`WAN
`Connected?
`
`
`l I\
`168
`
`Connection
`
`
`Re-establish WAN
`
`External Event:
`
`From Mobile WAN Interface
`
`Figure 10
`
`170
`
`Petitioner Motorola Mobility LLC - Exhibit lOOl - Page 11
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 11
`
`

`

`US 7,382,771 B2
`
`1
`MOBILE WIRELESS HOTSPOT SYSTEM
`
`FIELD OF INVENTION
`
`The invention relates to wireless Internet access points,
`and in particular to providing a mobile wireless access point
`for use with high-speed wireless devices.
`
`BACKGROUND OF INVENTION
`
`Telecommunications technology has advanced dramati-
`cally in recent history. The era of cost effective mobile data
`connectivity, “anytime, anywhere” is rapidly approaching.
`With the growing popularity of the Internet and increasing
`mobility demands from end users, there has recently been
`increased interest in wireless public Internet access.
`Public Internet access (e.g. Internet Cafe) has been around
`for many years. In the last couple of years, a new wireless
`data technology based on the IEEE 802.11 standard has been
`gaining momentum. Of particular interest is the deployment
`of 802.11-based access pointsiso called “Hotspots”iin
`public spaces, e.g. colfee shops, hotels, conference centers,
`and airports. Users with client devices such as laptops and
`personal digital assistants (PDAs) use an 802.11 network
`interface card that enables them to connect to the Internet
`
`without any physical cables. Once an association is estab-
`lished with the Wireless LAN (WLAN) Access Point (AP)
`or Hotspot, the user is able to surf the Internet as if they were
`on a LAN.
`
`The existing Hotspots provide good Internet connectivity.
`The major challenge with this type of wireless solution is
`coverage. The 802.11 standard makes use of an unlicensed
`frequency spectrum and is therefore limited to low power
`transmissions. As a result, a typical Hotspot has a range of
`no more than 150 feet indoors and 1000 feet outdoors under
`
`ideal conditions. Even with large companies such as T—Mo-
`bile planning to install thousands of these Hotspots in the
`coming years, it will be very difficult to achieve sufficient
`coverage throughout a city to satisfy a large population of
`mobile workers.
`
`To address the need for wide area wireless coverage,
`many cellular operators have been deploying new generation
`(known as 2.5G or 3G) wireless data networks. For example,
`the PCS Vision network from Sprint PCS is already provid-
`ing substantially improved performance over previous gen-
`erations of wireless technology. With speeds averaging
`50-70 kbps and peaking at 144 kbps the PCS Vision network
`is much slower than its 802.11 counterpart but has the
`advantage of a large coverage area and support for vehicular
`mobility (e.g. 0-300 km/h). 3G networks provide a service
`that is closer to the “anytime, anywhere” objective.
`There are drawbacks with 3G networks, chief among
`them being cost. 3G interface cards are expensive and so are
`the associated service plans. There are also several compet-
`ing and evolving standards (1xRTT, 1xEV—DO, 1xEV—DV,
`GPRS, EDGE, etc.). A given interface card typically sup-
`ports only one of these standards, the consumer is faced with
`a difficult decision, compounded by the knowledge he will
`likely have to upgrade to yet another expensive option
`within 18-36 months. High cost, confusing choices and poor
`performance relative to home Internet services such as DSL
`and cable modems all inhibit the wide acceptance of 3G.
`Today, ground transportation is a part of nearly every-
`one’s life. Be it airport transfers, customer visits, or daily
`commuting, more and more of the workforce is becoming
`mobile. Mobile workers are continually looking for cost
`effective solutions that allow them to stay in touch with their
`
`2
`
`customers, co-workers, suppliers and shareholders electroni-
`cally using standard computer equipment while “stuck” in
`transit using public transportation including limousines,
`taxis, buses, ferries or trains.
`It
`is an object of this invention to provide a mobile
`wireless hotspot that allows client devices equipped with
`short-range wireless Internet capability (e.g. 802.11) to
`access the Internet from a mobile vehicle through a long-
`range wireless Internet system (e.g. a 3G network).
`
`SUMMARY OF INVENTION
`
`The present invention integrates a short-range wireless
`Hotspot, such as an 802.11-compatible hotspot, with the
`mobility of long-range wireless networks, such as 3G into a
`Mobile Hotspot System (MHS). The MHS includes a short-
`range wireless (WLAN) access point, a long-range wireless
`(WAN) Internet interface, and a Local Area Network (LAN)
`router to handle communications and features of the MHS.
`
`The MHS provides wireless Internet connectivity to an
`end user with a client device configured for short-range
`wireless Internet access while in a mobile environment, such
`as a limousine.
`
`The LAN router may further include transparent in-line
`data caching to improve an end user surfing experience and
`optimize access to popular web sites. This caching may also
`include pre-loading domain name service (DNS) results at
`system boot time to optimize host name lookups.
`The MHS may further include a wireless WAN connec-
`tion manager to monitor the state of the WAN connection
`and re-establishes it when necessary to ensure continuous
`Internet connectivity.
`The MHS can also include content stored locally on the
`MHS instead of being retrieved over the WAN Internet
`connection. Such content can be retrieved by the user much
`faster than via the WAN. Such content may include, but not
`be limited to, advertising,
`local tourist
`information, and
`audio/video entertainment. The local content can be tailored
`
`10
`
`15
`
`20
`
`25
`
`30
`
`35
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`40
`
`to the user based on demographic information obtained
`directly or indirectly (e.g. by monitoring activity) from the
`user.
`
`45
`
`50
`
`55
`
`60
`
`65
`
`The MHS can include an integrated Operations Support
`System (OSS) for use with multiple MHS units. The OSS
`provides proactive monitoring and control of all deployed
`MHS units via the Intemet. The MHS cache systems can be
`further optimized based on overall usage statistics collected
`by the OSS from all deployed MHS units.
`The invention additionally includes a method of provid-
`ing a mobile wireless hotspot by installing a mobile wireless
`hotspot system as described above into a vehicle for use by
`client devices in the vehicle. The method may also using an
`OSS to coordinate and share information between multiple
`mobile hotspots.
`
`BRIEF DESCRIPTION OF THE DRAWINGS
`
`The invention itself both as to organization and method of
`operation, as well as additional objects and advantages
`thereof, will become readily apparent from the following
`detailed description when read in c01mection with the
`accompanying drawings:
`FIG. 1 is an architecture diagram of a typical prior art
`wireless 802.11 Hotspot;
`FIG. 2 is an architecture diagram for a Mobile Hotspot
`System (MHS) according to the present invention;
`FIG. 3 is an architecture diagram of an MHS accessing a
`local fixed Hotspot;
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 12
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 12
`
`

`

`US 7,382,771 B2
`
`3
`FIG. 4 is a functional block diagram of an MHS;
`FIG. 5 is an architecture drawing of a distributed MHS
`system including multiple MHS units and a central Opera-
`tions Support System (OSS);
`FIG. 6 is a block diagram illustrating the principles of
`aggregate web and DNS caching in an MHS;
`FIG. 7 is a logic diagram illustrating the process of
`authenticating the end user for the MHS;
`FIG. 8 is a logic diagram illustrating the process of
`pre—loading the DNS cache in the MHS based on aggregate
`popularity statistics from all MHS units;
`FIG. 9 is a logic diagram illustrating the process of
`pre-loading the Web Cache in the MHS based on aggregate
`popularity statistics from all MHS units;
`FIG. 10 is a logic diagram illustrating the WAN beacon
`process of the WAN Manager.
`
`DETAILED DESCRIPTION OF THE
`INVENTION
`
`Referring to FIG. 1, there is illustrated within a typical
`architecture for a prior art Hotspot 10. The range of appli—
`cation of the prior art Hotspot 10 is limited to a small area
`since the WAN interface 18 is fixed in location.
`
`In the prior art system, an 802.11 Access Point 12 accepts
`connections from a plurality of 802.11 client devices 30.
`Coupled to an output of the 802.11 Access Point 12 a DHCP
`(Dynamic Host Configuration Protocol) module 14 assigns
`IP (Intemetworking Protocol) addresses and configures
`other network settings (e.g. name servers, gateways) for the
`client devices 30 when they connect to the access point 12.
`The LAN Router 16 directs traffic from the access point 12
`to the Internet 20 Via the fixed WAN interface 18. The WAN
`
`interface 18 is typically a DSL or cable modem providing
`high-speed Internet access.
`Referring to FIG. 2, a Mobile Hotspot System (MHS) 40
`is shown in which Client devices 30 connect to the MHS 40
`
`5
`
`10
`
`15
`
`20
`
`25
`
`30
`
`35
`
`by an 802.11 access point 12 in the same fashion as they do
`to a standard hotspot. The key difference is the Internet
`connection is established Via a mobile WAN interface 42
`
`40
`
`using a mobile WAN service such as 1xRTT or GPRS. The
`Mobile WAN Interface 42 allows the MHS 40 to be
`
`deployed in a moving vehicle (not shown). Typically, the
`MHS 40 would be installed in vehicles such as limousines
`
`45
`
`and luxury vehicles given the current costs. However, as the
`costs for the hardware decrease over time, the MHS 40 will
`be installed in private vehicles as well as taxis, commuter
`buses, light rail, passenger and motor vehicle ferries and
`other mass transit systems.
`FIG. 3 illustrates an alternative usage for the MHS 40, in
`which the MHS 40 acts as an 802.11 Client device when the
`
`vehicle is parked in proximity to an 802.11 access point 12.
`The MHS 40 can then use the relatively high speed 802.11
`data link to update local content stored on the MHS 40.
`Unlike a conventional hotspot, the MHS 802.11 interface
`requires the ability to switch between client and access point
`modes.
`
`The functional block diagram of the MHS 40, illustrated
`in FIG. 4, consists of the 802.11 interface 12 which is
`capable of acting as either a client device or an access point
`to support both operational modes as shown in FIGS. 2 and
`3. The DHCP module 14 assigns IP addresses and configures
`other network information (name servers, gateways) for
`client devices 30 when they connect to the MHS 40. The
`DHCP module 14 performs no function when the MHS
`802.11 interface 12 is operating as a client device.
`
`50
`
`55
`
`60
`
`65
`
`4
`The LAN Router 16 controls access to the MHS 40.
`
`Newly connected clients are prevented from accessing the
`Internet 20 immediately as all Hypertext Transfer Protocol
`(HTTP) requests are intercepted and redirected to the local
`web server module 52 for user authentication. Once authen-
`
`tication is complete, all HTTP requests are transparently
`redirected to the local Web Cache module 58, while all other
`traffic from the authenticated client is passed directly to the
`Internet 20.
`
`The LAN Router 16 also performs Network Address
`Translation (NAT). This allows all client devices 30 to share
`a single external Internet address. It also acts as a security
`measure, preventing hostile external entities from establish-
`ing connections to MHS client devices 30. The Web Cache
`module 58 is a performance optimization feature. Each
`HTTP request is analyzed to see if the requested data exists
`in the local cache 58. If a match or “hit” is found, the data
`is returned to the user directly from the cache 58 at much
`higher speeds than if the data had to be retrieved from the
`Internet 20.
`The Web Server module 54 handles user authentication
`
`and provides local content 56. Local content 56 may include
`but not be limited to advertising, audio/video entertainment,
`local news and traffic data. The Local Content Module
`
`(LCM) 52 customizes the information presented to the user
`from the local web server module 54. The LCM 52 gathers
`position information from the onboard GPS module 68, if
`present,
`in order to tailor advertising, news and traffic
`information based on the location of the vehicle. The LCM
`
`52 also analyzes web surfing patterns from the Web Cache
`module 54 in order to tailor advertising based on the
`interests of the customers using the service. The LCM 52
`also detects when the vehicle is parked in proximity to an
`802.11 access point and switches the MHS 40 into client
`mode, downloading bulky new content over the high speed
`link from the central OSS (operations support system) 80.
`The DNS module 62 handles domain name resolution
`
`requests. These requests are issued by client devices 30 in
`order
`to translate human-friendly domain names
`(e.g.
`‘www.google.com’) into their numerical equivalents (e.g.
`123.456.789.555). The DNS module 62 resolves these
`requests via the slow WAN link on the first request but then
`caches the results so that subsequent requests are returned
`from directly from the DNS cache 60.
`The WAN Manager module 70 monitors the state of the
`WAN connection. Like cell phones, the mobile WAN c011-
`nection occasionally loses signal strength and drops the
`connection. The WAN manager 70 senses these dropouts
`and automatically re-initiates the call. The WAN manager 70
`also sends a periodic beacon to the Web to confirm the WAN
`connection (see flowchart in FIG. 10). These operations
`dramatically improve the user experience by minimizing the
`outages the user sees. The WAN manager 70 also reports the
`state of the connection to the local content manager (LCM)
`52 so that the user can see when they do and do not have
`Internet connectivity.
`The Geographical Positioning Service (GPS) module 68
`is a satellite-based system that can pinpoint the location of
`the MHS 40. This position information is logged with the
`OSS client 64 for vehicle tracking purposes and is also
`relayed to the Local Content Manager 52 for customization
`of local content.
`
`The 088 client module 64 is an optional module installed
`when the MHS 40 is to be managed by a central 088. It
`collects MHS operational statistics and makes them avail-
`able to the central 088 via the Internet 20. In addition, the
`OSS client 64 provides administrative access to the unit via
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 13
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 13
`
`

`

`US 7,382,771 B2
`
`5
`the Internet 20 so that basic maintenance can be performed
`without physically accessing the MHS 40.
`FIG. 5 illustrates architecture for the connection of mul-
`
`tiple MHS units 40 to the Internet 20 and management of the
`MHS units 40 from a central OSS 80 Via the Internet 20.
`
`FIG. 6 illustrates the aggregate web and DNS caching
`mechanisms for a network of MHS units 40. Each MHS unit
`
`40 reports its local web cache 58 and DNS statistics 60 to the
`central OSS 80, which consolidates the information into lists
`of the most popular web sites and hostnames. During idle
`periods, the MHS units 40 retrieve these global popularity
`lists and update their web 58 and DNS 60 caches accord-
`ingly using the pre-loading logic shown in FIG. 8 and FIG.
`9. The priority between DNS pre-loading and web page
`pre-loading can be set either by the individual MHS 40 or
`from the OSS 80.
`
`FIG. 7 illustrates the authentication procedure followed
`when a client device 30 connects to the MHS 40. The client
`
`device first 100 launches its Web Browser application and
`attempts to load a web page. The web server module 52 then
`checks 102 to see if the user of the device is logged in to the
`system. If the user is logged in, then the web page is loaded
`108. If the user is not logged in, then a welcome page with
`a login information request (i.e. user ID and password) is
`presented 104. The login information is authenticated 106
`and then further user requests are allowed to proceed to the
`Internet. Otherwise, the welcome page 104 is re-displayed
`requesting the user to enter the login information again.
`The DNS pre-loading algorithm is shown in the flowchart
`in FIG. 8. At this system start-up (110) the list of the most
`popular domain names is downloaded (112) from the central
`OSS 80. During the idle cycle (114), if the system is idle, the
`next domain name on the list has its DNS address resolved
`
`(116). The list is checked for remaining domain names (118)
`and the process continues during MHS idle periods until the
`entire list has been resolved.
`
`The web site pre-loading algorithm is shown in the
`flowchart in FIG. 9 and is similar to the DNS algorithm.
`After start-up (110) the list of most popular web sites is
`downloaded from the central OSS (120). During the idle
`cycle (122), if the system is idle, the root page of the next
`web site on the list is downloaded into the web cache 58
`
`(124). Linked pages olf the root page of the website are also
`fctchcd (126) up to a preset depth from the root page. This
`preset depth can be set to zero to cache only the root pages.
`The list is checked for remaining web sites (128) and the
`process continues during MHS idle periods until the entire
`list has been downloaded to the web cache 58.
`
`in FIG. 10 shows the WAN manager
`The flowchart
`beacon process. Once the WAN connection is established
`(160) the system waits for a preset period (162) before
`sending a beacon to the WAN to verify the connection status
`(164). If the WAN is connected (166), the system returns to
`the wait state (162). If the WAN is not connected (166), the
`system attempts to re-establish the WAN connection (168).
`The WAN manager will also attempt to re-establish the
`WAN connection whenever it receives a signal 170 from the
`WAN interface 42 indicating that the WAN connection is
`down.
`
`While the above description of the MHS 40 is based on
`802.11 and 3G wireless Internet standards, the system can be
`readily modified to be compatible with other short-range or
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`long-range wireless standards, such as 2.0G or 2.5G (long-
`range). The MHS 40 is also fully upgradeable with advances
`in the wireless field, such as the proposed 4G network from
`IPWireless.
`
`Accordingly, while this invention has been described with
`reference to illustrative embodiments, this description is not
`intended to be construed in a limiting sense. Various modi-
`fications of the illustrative embodiments, as well as other
`embodiments of the invention, will be apparent to persons
`skilled in the art upon reference to this description. It is
`therefore contemplated that the appended claims will cover
`any such modifications or embodiments as fall within the
`scope of the invention.
`We claim:
`
`1. A mobile wireless hot spot system, comprising:
`a) a short-range, high-speed wireless access point opera-
`tive to communicate with short-range client devices;
`b) a long-range, wireless Internet access interface opera-
`tive to communicate with the Internet; and
`c) a Local Area Network (LAN) routing system managing
`the data path between said wireless access point and
`said Internet access interface,
`wherein said mobile wireless hotspot system is a stand-alone
`system that enables client devices configured for short-
`range, high-speed wireless Internet access to use said mobile
`wireless hotspot system to access the Internet without the
`need to access an extemal service controller server.
`
`2. The system of claim 1, wherein said short-range,
`high-speed wireless access point uses 802.11 as a wireless
`standard.
`
`3. The system of claim 1, wherein said hotspot system is
`integrated into a vehicle such that passengers in said vehicle
`are capable of accessing the Internet using said client
`devices.
`
`4. The system of claim 1, further comprising local content
`module that stores content that can be accessed by said client
`devices directly through said high-speed access point.
`5. The system of claim 1, wherein said LAN routing
`system includes a Geographical Positioning Service (GPS)
`locator to provide location information to said system and to
`said client devices,
`to enable dynamic tailoring of local
`content for services.
`
`6. The system of claim 1, wherein said LAN routing
`system includes a website cache that allows said client
`devices to access information stored in said website cache
`directly through said high-speed access point.
`7. The system of claim 4, wherein said system includes a
`short-range, high-speed wireless access interface to enable
`said system to download updates to said local content
`module using a fixed high-speed wireless access point.
`8. The system of claim 1, further including an operation
`support system (088) module to monitor and share infor-
`mation with other mobile hotspot systems.
`9. A method of providing a mobile wireless hotspot
`system for client devices requiring a short-range wireless
`access point, comprising:
`a) installing said mobile wireless hotspot system in a
`vehicle, said mobile wireless hotspot system including:
`i) a short-range high-speed wireless access point;
`ii) a long-range, wireless Internet access interface; and
`(iii) a Local Area Network (LAN) routing system
`managing the data path between said wireless access
`point and said Internet access interface,
`wherein said mobile wireless hotspot system is a stand-alone
`system that enables said client devices configured for short
`
`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 14
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`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 14
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`

`

`US 7,382,771 B2
`
`7
`range, high speed wireless Internet access to use said mobile
`wireless hotspot system to access the Internet, both while
`said vehicle is in motion and when said vehicle is stationary,
`without the need to access an external service controller
`server.
`
`10. The method of claim 9, further including providing an
`operation support system (088) for monitoring and sharing
`information between multiple mobile wireless hotspot sys-
`tems.
`
`11. The method of claim 10, wherein said 088 addition-
`ally compiles a list of frequently accessed domains and
`websites the information about which has been dynamically
`cached based on user activity, said list based on using data
`received from said multiple hotspot systems and said list can
`be downloaded into a local content module by individual
`ones of said hotspot systems.
`12. The method of claim 11, wherein said list can further
`be used to pre-load websites and domains into a web cache
`on said multiple hotspot systems at startup.
`13. The method of claim 9, further including providing a
`local content module in said hotspot system such that the
`content in said local content module can be accessed directly
`via said high-speed wireless access point.
`14. The method of claim 10, wherein said mobile hotspot
`system includes a Geographical Positioning Service (GPS)
`locator to provide location information to client devices
`accessing said hotspot system and to said 088, to enable
`dynamic tailoring of local content for services.
`15. A network of mobile wireless hotspots, comprising:
`a) a plurality of mobile wireless hotspot systems installed
`in vehicles, each mobile wireless hotspot system
`including:
`
`8
`i) a short-range high-speed wireless access point;
`ii) a long-range, wireless Internet access interface; and
`iii) a Local Area Network (LAN) routing system
`connecting said wireless access point and said Internet
`access interface, wherein said mobile wireless hotspot
`system enables passengers in said vehicle to use said
`client devices to access the Internet both while said
`
`vehicle is in motion and when said vehicle is stationary
`and b) an operation support
`system (088) operative to monitor and share infonnation
`between said mobile hotspot systems on said network.
`16. The network of claim 15, wherein said 088 compiles
`a list of frequently accessed domains and websites using
`data received from said multiple hotspot systems and said
`list can be downloaded into a local content module by
`individual ones of said hotspot systems.
`17. The network of claim 16, wherein said list can further
`be used to pre-load websites and domains into a web cache
`on each of said hotspot systems at startup.
`18. The system of claim 1, including a WAN Interface
`providing high-speed Internet access, a long range wireless
`Internet access interface (WAN) manager coupled to said
`WAN interface, and monitoring a WAN connection of said
`WAN Interface in order to provide a continuous connection
`to the Internet.
`
`including monitoring a
`19. The method of claim 9,
`connection of a WAN Interface to the Internet to detect any
`loss of connection and then re-establishing the connection
`whenever it is lost.
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`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 15
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`Petitioner Motorola Mobility LLC - Exhibit 1001 - Page 15
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