WO2005109914A1 - Automatic configuration of wlan for mobile users - Google Patents
Automatic configuration of wlan for mobile users Download PDFInfo
- Publication number
- WO2005109914A1 WO2005109914A1 PCT/US2005/009862 US2005009862W WO2005109914A1 WO 2005109914 A1 WO2005109914 A1 WO 2005109914A1 US 2005009862 W US2005009862 W US 2005009862W WO 2005109914 A1 WO2005109914 A1 WO 2005109914A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- agent
- mobile host
- configuration
- access
- geographic location
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Definitions
- the present invention provides a system and method for automatically configuring a mobile host in a Wireless Locale Area Network (WLAN).
- WLAN Wireless Locale Area Network
- the present invention employs GPS technology and an Information Gateway (IGW) to provide preconfigured information about different access points of the WLAN within the vicinity of the current location of the mobile host.
- IGW Information Gateway
- Wireless Local Area Network (Wireless LAN hereafter) is emerging as a highly- demanded and fast-deployed technology. With its relative high-throughput capability and lower deployment cost (no spectrum license fee required), wireless LAN has been considered as a complimentary technology with 3G mobile wireless network to provide seamless data service coverage.
- IEEE 802.11b operating at 11 Mb/s is the most widely-deployed technology among the wireless LAN technology family and has been adopted widely in academic and enterprise environments. Commercial service based on 802.11b is also available in major airports, train stations, hotels, malls, and coffee shops around the world.
- IEEE 802.11a operating in the 5GHz spectrum and IEEE 802.1 lg operating in the 2.4GHz spectrum are gradually being deployed to offer even better data throughput.
- Supporting wireless LAN connectivity has been considered as a mandatory feature for new end user mobile devices, particularly PDA and laptops. New technologies for such devices currently support 802.11b and will support 802.1 la and 802.1 lg in the near future, to boost the demand of wireless connectivity, as well as equipment upgrades. Most new laptops are equipped with wireless LAN connectivity and the demand continues to grow. It has been reported that wireless access points may become as ubiquitous as telephone jacks. (Steve Weinstein, The Mobile Internet: Wireless LAN vs. 3G Cellular Mobile, IEEE Communications, February, 2002).
- WLAN was originally designed for local area environments with simple password-backed encryption protection of over-the-air transmission. Therefore, in order to access a WLAN, the mobile device must be pre-configured manually with network profiles that contain mandatory access information, such as Network name or ESSID, and password. For mobile users connected to a geographically distributed network consisting of thousands of access points, the need to manually re-configure upon handoff from one access point to another, imposes a major impediment.
- the present invention provides a system and method for automatically configuring a mobile host in a WLAN.
- the present invention employs GPS technology and an IGW to provide preconfigured information about different access points of the WLAN within the vicinity of the current location of the mobile host.
- FIG. 1 is a schematic view of the system according to one embodiment of the present invention.
- FIG. 2 is a schematic view of the system according to another embodiment of the present invention.
- FIG. 3 is a state diagram of one embodiment of the method according to the present invention.
- the system according to one embodiment of the present invention comprises a configuration agent, a heterogeneous access agent (HAA), a GPS agent and a WLAN interface on the client side or mobile host.
- HAA heterogeneous access agent
- GPS agent GPS agent
- WLAN interface on the client side or mobile host.
- the system according to the present invention includes an information gateway (IGW), and a database.
- IGW information gateway
- the IGW is connected to the HAA through any available network connectivity, and is controlled by the service provider wishing to offer automatic configuration services.
- the IGW can be deployed either remotely or locally within the network.
- the IGW communicates with or includes a database that stores and manages network profiles of access points in the WLAN, including location information. Upon a mobile host request, the IGW will retrieve specific network profiles for access points that are in the vicinity of the mobile host current location.
- the GPS agent keeps track of the mobile host current location and provides this information to the HAA.
- the HAA is responsible for communicating with the IGW, including providing current location information received from the GPS agent.
- the WLAN interface provides the wireless connection between the mobile host and the selected access point (server) within the WLAN.
- the configuration agent is responsible for automatic configuration of the WLAN interface on the mobile host.
- the system includes a WLAN service provider domain, having an access proxy and AAA (authentication, authorization and accounting) database.
- the access proxy is a server responsible for the AAA process, such as user identification authentication and privilege authorization, usually performed following a successful WLAN association carried out through the IGW.
- the configuration agent manages the additional authentication and authorization process, by communicating with the access proxy.
- the HAA forwards valid access information, such as user name and password, to the configuration agent, which in turn sends a request to authentication and authorization to the access proxy.
- the access proxy checks the user name and password against entries in the AAA database, which is maintained by the service provider.
- the access proxy In the user name and password are found to be valid, then the access proxy notifies the configuration agent and the connect request is granted. However, if the user name or password are invalid, then the access proxy notifies the configuration agent and the connect request is denied. Therefore, even in the event the WLAN association succeeds through the IGW, the mobile host will not be able to gain internet access.
- the present invention also provides a method for automatic configuration of a mobile host in a WLAN environment.
- the method of the present invention operates as follows. Initially, the mobile host connects to any available network, wireless or otherwise, using normal boot up operations with pre-installed network profiles. As part of this process, the mobile host also begins to communicate with the IGW via the HAA.
- the GPS agent receives a GPS signal and transmits the current location of the mobile host to the IGW via the HAA in a periodic or adaptive fashion.
- the IGW receives the location information and compares the location to access point information stored in the database. The IGW then returns network profile information for access points that are close to the mobile host's current geographical location to the HAA.
- the HAA forwards the received network profiles to the configuration agent that uses the network profiles to automatically configure the WLAN interface. This process can be carried out in a continuous fashion so that the configuration Agent can always have the most current configurations available. In particular, as new location information is transmitted from the HAA to the IGW, the configuration agent can automatically create new network profiles, update existing profiles, and delete any expired profiles.
- the mobile host can access any one of the access points of the WLANs that are in vicinity of its current location. In this way, delays associated with reconfiguration are avoided. Further, this process is completely transparent to the mobile user, and is automatic, freeing the mobile user from the need to reconfigure manually.
- FIG. 3 is a state diagram showing one embodiment of the method according to the present invention.
- the GPS agent provides current geographical location information to the HAA.
- the HAA determines if it has the up-to-date WLAN access information. If yes, then the HAA determines if the access information is the same as that currently being used. If yes, the HAA does not need to forward any information to the configuration agent, as no change is needed. However, if the HAA access information is not the same as that currently being used, then the HAA forwards the access information to the configuration agent, the configuration agent automatically configures the WLAN interface.
- the system determines if an AAA process is necessary. If no AAA process is requested, then the mobile host is able to access the configured WLAN.
- the configuration agent communicates with the access proxy to carry out he AAA process.
- the access proxy checks the AAA database to verify user identity and password. If the user identity and password are valid, then the mobile host is allowed to access the WLAN. However, if user identity or password are not valid then the access request is denied and the mobile host is not able to access the WLAN.
- the HAA If the HAA initially determines that it does not have the up-to-date WLAN access information, then the HAA sends a request to the IGW and the IGW requests access information for WLANs in the database. If the database has the requested access information, the requested information is provided to the IGW which then forwards the access information to the HAA. In the event the database does not have the requested access information, it replies to the IGW that the requested information was not found and the IGW replies to the HAA. In this case the system will not be able to provide automatic access configuration.
- the present invention provides a system and method to support automatic WLAN configuration for mobile hosts.
- the system and method of the present invention focus on applicability, scalability, manageability and flexibility, and have the ability to automatically configure network profiles to access points in the vicinity of the mobile host current location, without the need for human intervention.
- the system and method of the present invention are advantageous in several respects, including being applicable to technologies of the IEEE 802.11 family; providing intelligent management by keeping only relevant network profiles according to the current location of the mobile host; and being scalable and flexible by storing both network profiles and GPS information in databases managed by the IGW that allows dynamic deletion and insertion without modification of the mobile host.
- It is anticipated that other embodiments and variations of the present invention will become readily apparent to the skilled artisan in the light of the foregoing specification. Such embodiments and variations are intended to likewise be included within the scope of the invention as set out in the appended claims.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US10/828,961 | 2004-04-21 | ||
US10/828,961 US6965576B1 (en) | 2004-04-21 | 2004-04-21 | Automatic configuration of WLAN for mobile users |
Publications (1)
Publication Number | Publication Date |
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WO2005109914A1 true WO2005109914A1 (en) | 2005-11-17 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2005/009862 WO2005109914A1 (en) | 2004-04-21 | 2005-03-24 | Automatic configuration of wlan for mobile users |
Country Status (2)
Country | Link |
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US (1) | US6965576B1 (en) |
WO (1) | WO2005109914A1 (en) |
Cited By (1)
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WO2018169118A1 (en) * | 2017-03-17 | 2018-09-20 | 주식회사 아이쉐어링소프트 | Aperiodic update-based user position information processing method |
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Also Published As
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US6965576B1 (en) | 2005-11-15 |
US20050237967A1 (en) | 2005-10-27 |
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