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WO2007053575A2 - Systeme et procede assurant, gerant et traitant des communications entre des reseaux heterogenes sans fil et des reseaux exterieurs de communications vocales et de donnees - Google Patents

Systeme et procede assurant, gerant et traitant des communications entre des reseaux heterogenes sans fil et des reseaux exterieurs de communications vocales et de donnees Download PDF

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Publication number
WO2007053575A2
WO2007053575A2 PCT/US2006/042369 US2006042369W WO2007053575A2 WO 2007053575 A2 WO2007053575 A2 WO 2007053575A2 US 2006042369 W US2006042369 W US 2006042369W WO 2007053575 A2 WO2007053575 A2 WO 2007053575A2
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WO
WIPO (PCT)
Prior art keywords
network
module
access point
network access
operatively connected
Prior art date
Application number
PCT/US2006/042369
Other languages
English (en)
Other versions
WO2007053575A3 (fr
Inventor
Terrance Peck
Michael Ford
Original Assignee
Digital Sail Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Digital Sail Llc filed Critical Digital Sail Llc
Publication of WO2007053575A2 publication Critical patent/WO2007053575A2/fr
Publication of WO2007053575A3 publication Critical patent/WO2007053575A3/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/14—Backbone network devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/14—Charging, metering or billing arrangements for data wireline or wireless communications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery

Definitions

  • communication service providers In addition to connecting multiple heterogeneous wireless technologies into functioning non-wireless networks, communication service providers must also be able to deliver a variety of services over the wireless and non-wireless networks. These services generally include, but are not limited to, high speed Internet access, VoIP, private networking, remote network access, as well as back up and recovery functions for subscribers. Broadband wireless service providers also routinely offer messaging services such as voicemail, email, sms messaging, and video mail as well as facsimile and conferencing capabilities over these networks. In connection with these services, providers must also be able to establish, manage, and maintain customer histories, service customer accounts, and monitor and manage traffic over the networks.
  • a network access point is-may be provided for enabling voice and data communications between at least one wireless network and at least one non-wireless network.
  • the network access point may include an input switch adapted to communicate with a wireless network.
  • the network access point may further include, at least one module.
  • the module may be configured as a Virtual Local Area Network or VLAN and may be operatively connected to an output switch which, in turn, is capable of communicating with at least one non-wireless network.
  • a communications system may be provided for enabling communications between wireless and non- wireless networks.
  • the communications system may include, at least one network access point operatively connected to at least one wireless network, and at least one non-wireless network.
  • the network access point may further include a VLAN switch operatively connected to at least one module, and an output switch operatively connected to said module.
  • a method may be provided for routing voice and data communications between at least one wireless network and at least one non-wireless network.
  • the method may include the steps of receiving a communication from a wireless network and forwarding the communication to a network access point.
  • the network access point may comprise a VLAN switch, an output switch, and at least one module operatively connected to the input switch.
  • the method may further include analyzing the communication to determine an intended recipient, and routing the converted communication to the intended recipient over at least one non-wireless network.
  • FIG. 1 is a diagram of an exemplary embodiment of the present invention/
  • the present invention is directed to a system and method for enabling communication between heterogeneous wireless networks and the Internet, the PSTN, and various data networks.
  • the systems and methods disclosed and claimed herein may also provide for the application of various administrative functions and services.
  • the present invention will now be described more fully with reference to FIG. 1 in which an exemplary embodiment of the present invention is shown.
  • the subject matter of this disclosure may, however, be embodied in many different forms and should not be construed as being limited to the exemplary embodiment set forth herein.
  • the network access point (NAP) 1 of the present invention may comprise at least one wireless network, such as WiFi networks 3, WiMax-class systems 7, point-to-multipoint systems 9, and/or point-to-point radios 11, operatively connected to an input switch 13.
  • the input switch 13, in turn, may operatively be connected to at least one NAP module 15.
  • the NAP module may be connected operatively to an output switch 17 which, in turn, may be connected to the Internet 19, the PSTN 21, a private network 23, another network, or a combination thereof.
  • all of the NAP modules may comprise some or all of commercially available hardware and software which support multiple languages and protocols. As a result, the NAP may be configured to reduce or eliminate proprietary computer code or programming.
  • the NAP may be configured such that each NAP module is a VLAN. This configuration provides for two types of modularity, NAP Component modularity and Subscriber modularity. Because some or all of the NAP modules may be assembled from commercially available components, the NAP is very flexible and its modification may be simplified. For example, a service provider utilizing the NAP may initially provide voicemail and email services. Other services such as web hosting and telephone conferencing may be further added by installing and configuring any number of application servers or appliances. Similarly, services may be removed from the NAP or modified without having to take the NAP offline and interrupt subscriber service. [0013] The NAP may farther allow for Subscriber modularity.
  • each time a subscriber accesses the NAP the subscriber may initiate a unique communications session containing a unique request.
  • Each unique request may be treated separately allowing the subscriber access to only those modules and components of the NAP which are necessary to complete the request.
  • subscriber requests may utilize fewer system resources and requests are handled more efficiently.
  • This type of Subscriber Modularity further allows service providers to provide highly individualized services without affecting overall operability of the NAP.
  • the NAP may include at least one input switch 13 which may be connected to a plurality of wireless networks 3, 5, 7, 9, and 11 and at least NAP Module 15.
  • the input switch 13 may be a standard VLAN switch or other switch known by those of ordinary skill in the art.
  • suitable VLAN switches include, but are not limited to, the Ethernet Switch 450 (formerly the Baystack 450 Switch), the Black Diamond, and the SuperStack which are commercially available from Nortel Networks (www.nortel.com). Extreme Networks (www.extremenetworks.com), and 3COM Corporation (www.3com.com), respectively.
  • the NAP modules 15 may be organized into four categories: Administration 25, Network Management 27, Applications 29, and VoIP 31.
  • the NAP may include an Administration Module 25 which may include components for Provisioning 33, Customer Service 35, Billing 37, and Customer Relationship Management (CRM) 39.
  • the Administration Module 25 may support at least the following language interfaces and standard protocols: open database connectivity (ODBC), extensible markup language (XML), lightweight directory access protocol (LDAP), common object request broker architecture (CORBA), structured query language (SQL), hypertext transfer protocol (HTTP), file transfer protocol (FTP), simple mail transfer protocol (SMTP), and open application programming interfaces (APIs).
  • ODBC open database connectivity
  • XML extensible markup language
  • LDAP lightweight directory access protocol
  • CORBA common object request broker architecture
  • SQL structured query language
  • HTTP hypertext transfer protocol
  • FTP file transfer protocol
  • SMTP simple mail transfer protocol
  • APIs open application programming interfaces
  • the Provisioning component 33 of the Administration Module may be responsible for activating network services and activating and controlling subscribers' services.
  • the Provisioning component may assign subscribers' telephone numbers and IP addresses, activate the services subscribers have requested, such as voicemail, email, conferencing, and/or Internet access, and allow subscribers access to the network.
  • Suitable software for carrying out these provisioning functions may include, but is not limited to, NetProvision, InteractivatE, and ClarifyCRM commercially available from Syndesis Limited,(www.syndesis.com), Intec Telecom Systems PLC ( " www.intec-telecom-systems.comV and Amdocs (www.amdocs.com), respectively.
  • the Customer Service component 35 of the Administration Module may contain each individual subscriber's unique identifying information, including name, address, telephone numbers, and email address(es). In addition, the Customer Service component 35 may be responsible for maintaining individual histories for each subscriber. Subscriber histories may include information relating to the number of times a subscriber has had technical problems, the nature of the problems, and problem resolution. The Customer Service component 35 also may track and manage products and services requested by individual subscribers. Furthermore, the Customer Service component 35 may allow subscribers to engage in online question and answer sessions with support representatives and may provide a central location for subscribers to view and download product and service descriptions, frequently asked questions (FAQs), and technical help documents.
  • FAQs frequently asked questions
  • Suitable subscriber service software to carry out these functions may include Convergys Infinys, Amdocs CRM, and Siebel 7.8 commercially available from Convergys Corporation, (www.convergys.com), Amdocs Limited (www.amdocs.com), and Siebel Systems, Inc. (www.siebel.com), respectively.
  • the Billing component 37 of the Administration Module may comprise software that performs automated billing services for the network.
  • the Billing component 37 allows for an infinite number of pricing structures for invoicing subscribers having unlimited service plans and options.
  • the Billing component37 may maintain a record of the subscribers' usage of the system and determine if chargeable activity has occurred. Such usage records may include caps which prevent subscriber abuse of network services.
  • the Billing component 37 may generate subscriber bills for a variety of billing periods such as weekly, monthly, quarterly or annually. These bills may then be sent to the subscriber electronically by the Billing component 37 or via regular mail.
  • the Billing component 37 processes subscriber payments, whether made by credit card, check, a prep-paid card, top-off cards, and the like.
  • the Billing component 37 may also monitor whether subscribers have paid their bills and suspend the service of subscribers who have not. When the subscriber pays his or her bill in full, the Billing component 37 may reactivate the subscriber's service.
  • Suitable Billing component software includes, but is not limited to Rodopi 6.0, Logisense EngagelP, and SysMaster VoiceMaster commercially available from Rodopi Software, Inc. (www.rodopi.com), Logisense Corporation (www.logisense.com ' ), and SysMaster Corporation (www.svsmaster.com), respectively.
  • the CRM component 39 of the Administration Module 25 may monitor the activities of subscribers.
  • the CRM component 39 may create subscriber profiles based on a subscriber's demographics, preferences, history, web site usage, revenue generation, and other service usage. These subscriber profiles then can be used to assign values to subscribers and rank or group subscribers into market segments, which in turn makes it easier and more efficient to market, sell, and provide services to subscribers.
  • Suitable software for the CRM component 39 includes but is not limited to, KANA Resolution, Astute PowerCenter, and ATG Adaptive Scenario Engine commercially available from KANA, Incorporated (www.kana.com). Astute, Incorporated, (www.astutesolutions.com), and Art Technology Group, Incorporated (www.atg.com), respectively.
  • the Network Management (NM) Module 27 may include, but is not limited to, components for Bandwidth Management 41, Element Management 43, Authentication 45, and Business Continuity/Disaster Recovery 47.
  • the Bandwidth Management component 41 of the NM Module allows the NAP service provider to monitor, classify, and control traffic through the NAP. For example, different subscribers, such as businesses and individuals, may have service level agreements which specify minimum or maximum levels of bandwidth delivery. As a result, different customers or traffic types may need to be prioritized relative to others.
  • the Bandwidth Management component 41 allocates the appropriate amount of bandwidth to each subscriber based on the subscriber's service agreement and prioritizes communications.
  • the Bandwidth Management component 41 may monitor and manage traffic based upon protocol, destination, or port number and prioritize traffic types.
  • IP Internet peer-to-peer
  • Common P2P connections such as BitTorrent (www.bittorrent.com) generally consume large amounts of bandwidth if unmonitored.
  • Suitable hardware for the Bandwidth Management component 41 includes, but is not limited to, Emerging Technologies 1800G, Netlntact Packet Logic, PowerNOC Packeteer, and Radware SynApps, and NetEnforcer which are commercially available from Emerging Technologies, Incorporated (www.etinc.orn), Netintact (www.netintact.net), PowerNoc (www.powernoc.com), Radware Limited (www.radware.com), and Allot Communications (www.allot.com), respectively.
  • the Element Management System (EMS) component 43 may comprise software that controls the wireless system hardware, including base stations and transceivers, as well as individual subscribers' devices. For example, the EMS component 43 may communicate directly with the Provisioning and Billing components which, in turn, may instruct the EMS component 43 to turn a subscriber's modem or radio on or off. In order to carry out element management with a wide variety of platforms, the EMS component 43 may support open APIs and command line interfaces (CLIs).
  • CLIs command line interfaces
  • suitable element management system software include, but are not limited to, Sonus Insight, MetaSwitch, and Openwave which are commercially available from Sonus Networks Incorporated, (www.sonusnet.com), MetaSwitch, a division of Data Connection (www.metaswitch.com), and Openwave Systems, Incorporated (www.openwave.com). respectively.
  • the Authentication component 45 may control subscriber access to the various features of the NAP. For example, a user may be required to "log in” or “sign on” to a network by entering a user name and password with a computer keyboard or touch- tone telephone key pad, by speaking a user name and password, or by using a voiceprint. It is the Authentication component 45 which controls whether the subscriber gains access. In order to carry out authentication functions for a wide variety of platforms, the Authentication component 45 should support at least the following language interfaces and standard protocols: Active Directory, e directory, LDAP, securelD, and RSA SecurelD.
  • Suitable software for the Authentication component 45 includes, but is not limited to, Infoblox RADIUSone, and Trusted Networks Identity commercially available from Infoblox Incorporated Cwww.infoblox.com) and Network Technologies, Incorporated ( " www.trustednetworktech.com), respectively.
  • the Business Continuity/Disaster Recovery component 47 may be used to build redundancy into the databases and servers comprising the NAP in order to protect the NAP and its services during sudden disasters such as fires, floods, earthquakes and tornadoes and rolling disasters such as viruses, file corruptions, and accidental deletions.
  • sudden disasters such as fires, floods, earthquakes and tornadoes
  • rolling disasters such as viruses, file corruptions, and accidental deletions.
  • the NAP may be able to continue processing phone calls, emails, text messages, faxes, data, and other information even if critical components in the NAP fail due to a disaster.
  • Suitable disaster recovery hardware and software includes, but is not limited to, LaCie, StorServer, and MaXXan SAlOO commercially available from LaCie USA (www.lacie.com), MaXXan Systems, Inc. (www.maxxan.com). and STORSserver, Inc. (www.storserver.com ' ), respectively.
  • the Applications Module 29 may include components to provide communication services, including but not limited to, email 49, SMS messaging, voicemail 51, conferencing, facsimile services, and spam filtering.
  • the Applications module 29 may include one, some, or all of these services.
  • the Applications module 29 may initially include software for email and voicemail only.
  • facsimile and conferencing services easily can be added.
  • the Applications module 29 includes a unified communications component. Unified communications generally refers to one system and number for email, voicemail, facsimile, telephone and web conferencing, find me, and follow me services.
  • the unified communications component further may include the ability to retrieve facsimiles and emails via the telephone using text-to-speech to listen to telephone voice messages via a computer, and to respond to email via the telephone.
  • the unified communications also may provide an IVR or natural language speech recognition auto-attendant to assist subscribers with locating phone numbers and address, dialing phone numbers, adding telephone numbers and address to an electronic address book, and the like.
  • the unified communications also includes bulk and junk email and spam filtering 53 and antivirus 55 capabilities.
  • Suitable software to provide the Application module 29 services may include, but is not limited to, Vircom ModusMail, Rockliffe Mailsite, and Stalker Communigate available from Vircom, Inc. fwww.vircom.com), Rockliffe, Inc.
  • the Applications module 29 also may include the Domain Name Server (DNS) software and server 57, Remote Authentication Dial-In User Service (RADIUS) server 59, and the Dynamic Host Configuration Protocol (DHCP) software and server 61. These servers and associated software may be standard in the industry and are known by those skilled in the art. Therefore, they will not be discussed in detail in the present application.
  • DNS Domain Name Server
  • RADIUS Remote Authentication Dial-In User Service
  • DHCP Dynamic Host Configuration Protocol
  • the DNS server 57 translates alphanumeric domain names into numbers used to locate the specific web servers storing a particular web site. For instance, the web site www.digitalsail.com would be translated by the DNS server into the number series 204.69.234.1 or 204.74.101.1, which identifies two particular web servers connected to the internet where the Digital Sail web site may be found.
  • Suitable DNS servers include Nominum Foundation and Incognito Name Commander, which are commercially available from Nominum Incorporated (www.nominum.com) and Incognito Software, Incorporated (www.incognito.com).
  • the DHCP server 61 may be used to dynamically assign IP address to subscribers' computing devices.
  • Suitable DHCP software and servers include IP Commander, Meta SAFE, and BlueCat Adonis which are commercially available from Incognito Software Incorporated (www.incognito.com), Metainfo (www.metainfo.com), and BlueCat Networks, Inc. (www.bluecatnetworks.com), respectively.
  • the RADIUS server 59 may provide remote user authentication and accounting. Suitable RADIUS servers include Infoblox RADIUSOne, Celestix RADEJS, and Funk SBR which are commercially available from Infoblox Incorporated (www.infoblox.com), Celestix Networks, Incorporated (www.celestix.com), and Funk Software Incorporated (www.funk.com), respectively.
  • the NAP may include a VoIP Module 31. This module may be a standard VoIP platform know in the art and, as a result, is not discussed in detail. Components of the VoIP Module 31 include at least one soft switch 63 and a gateway 65. Soft switch processing involves the conversion of calls from the PSTN into an internet protocol (IP) packet, which is then transferred to another network over the internet. Gateway processing involves the routing of calls through the PSTN.
  • IP internet protocol
  • Suitable soft switches include Nortel CS2000, Sonus Insignus, Copper Com CSX, and MetaSwitch VP3500, commercially available from Nortel Networks Incorporated (www.nortel.com ' ), Sonus Networks Incorporated (www.sonus.com), CopperComTM, a division of Heico Companies LLC (www .Coppercom .com), and MetaSwitchTM a division of Data Connection Limited (www.metaswitch .com ' ), respectively.
  • Suitable Gateways include, but are not limited to, Logitel VXTlOOO, Excel EVIG1010, and SysMaster SM 7000 commercially available from Logitel Corporation (www.logitel.com ' ). Excel Switching Corporation (www.excelswitching.com). and SysMaster Corporation (www.sysmaster.com ' ), respectively. Each of these gateways supports H.323 and Session Initiation Protocol (SIP) protocols.
  • SIP Session Initiation
  • modules may be used in the present invention in order to meet each individual service provider's needs.
  • a service provider may choose to have a NAP with one module, three modules, or ten modules.
  • the application and management capabilities of the modules may vary.
  • a service provider may combine all or some of applications and management capabilities of the administration and network management modules into one module or leave out some of the applications and management capabilities altogether.
  • the NAP further may comprise at least one output switch 17 positioned between the NAP Modules and the plurality of non- wireless networks.
  • the NAT switch may be used to perform static and dynamic NATting. Suitable NAT switches include, but are not limited to, F5 V9, ESl 0170, and the HSX6000 which are commercially available from F5 Networks, Inc. (www.f5.com " ), Riverstone Networks, inc. ( www.nverstone.com ' ), and Hammerhead Systems, Inc. (www.hammerheadsvstems.com ' ), respectively.
  • a service provider will configure the NAP so that it is in communication with at least one wireless network 3, 5, 7, 9, and/or 11 and at least one non-wireless network such as the Internet 19, a private network 23, and/or the PSTN 21.
  • a communication originating from a wireless network is received by the input switch 13, which will either accept the communication as one from a subscriber or reject the communication.
  • An accepted communication then is either routed through the NAP and out to the Internet 19, the PSTN 21, and/or a private network 23.
  • a wireless voice or data communication may be processed solely within the NAP.
  • a unique communications sessions may be initiated by a subscriber requesting to listen to his or her voicemail. After the subscriber is identified and authenticated, the NAP provides the subscriber with access to his or her stored voicemails. The subscriber then may listen to his or her voicemails. If the subscriber chooses not to respond to any of the voicemails, the unique communication session is ended without any communication being routed to a non-wireless network.
  • the subscriber chooses to respond to a voicemail by placing a return telephone call that the return call will then be routed through the NAP and to the Internet 19, the PSTN 21, or private network 23.
  • the NAP may be designated to a particular service area, such as all of the users in a city or other geographic area.
  • the NAP may be designated to a particular building or property, such as an office, residence hall, apartment or condo building, or other multiple dwelling unit (MDU).
  • MDU multiple dwelling unit
  • two or more NAPs may be operatively connected together to serve a larger number of end users.
  • Two or more NAPs are connected via standard Ethernet via either NAT or VLAN side of the NAP.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention porte sur un système et un procédé faisant converger plusieurs réseaux hétérogènes sans fil vers un point d'accès de réseau à commutation de paquets. Le système et le procédé permettent des communications vocales et de données entre au moins un réseau sans fil et au moins un réseau filaire tel qu'un RTPC. Le point d'accès au réseau peut comporter un commutateur d'entrée, un noyau modulaire et un commutateur de sortie. Le noyau modulaire, qui peut être fait de matériel et de logiciels du commerce, assure l'administration du réseau, les applications, les services, et le trafic avec l'utilisateur final, ainsi que des connexions avec différents réseaux extérieurs vocaux et de données. Le procédé comporte les étapes suivantes: réception d'une communication d'au moins un réseau sans fil; transmission de la communication à un point d'accès à un réseau; analyse de la communication; et routage de la communication vers au moins un réseau filaire ou sans fil.
PCT/US2006/042369 2005-10-31 2006-10-31 Systeme et procede assurant, gerant et traitant des communications entre des reseaux heterogenes sans fil et des reseaux exterieurs de communications vocales et de donnees WO2007053575A2 (fr)

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US73167505P 2005-10-31 2005-10-31
US60/731,675 2005-10-31

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WO2007053575A2 true WO2007053575A2 (fr) 2007-05-10
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6430164B1 (en) * 1999-06-17 2002-08-06 Cellport Systems, Inc. Communications involving disparate protocol network/bus and device subsystems
US20030032451A1 (en) * 2001-08-10 2003-02-13 Jianhong Hu Architecture for converged broadband wireless communications
US20030235177A1 (en) * 2002-06-19 2003-12-25 Yeon-Chun Park Composite access point apparatus, and method for processing voice/data packets using the same
US20050176473A1 (en) * 2002-01-29 2005-08-11 Diego Melpignano Internet protocol based wireless communication arrangements

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6430164B1 (en) * 1999-06-17 2002-08-06 Cellport Systems, Inc. Communications involving disparate protocol network/bus and device subsystems
US20030032451A1 (en) * 2001-08-10 2003-02-13 Jianhong Hu Architecture for converged broadband wireless communications
US20050176473A1 (en) * 2002-01-29 2005-08-11 Diego Melpignano Internet protocol based wireless communication arrangements
US20030235177A1 (en) * 2002-06-19 2003-12-25 Yeon-Chun Park Composite access point apparatus, and method for processing voice/data packets using the same

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