Interworking mechanism between CDMA2000 and WLAN
First Claim
Patent Images
1. A wireless communication system, comprising:
- a wireless wide area network (WWAN) having base transceiver stations spatially distributed to communicate with mobile communication devices via WWAN radio links, base station controllers each coupled to a plurality of base transceiver stations, and a data communication system comprising (1) packet control function devices respectively connected to said base station controllers to transmit data packets to and from the mobile communication devices via said base transceiver stations, and (2) a packet data serving node connected to said packet control function devices and a packet data network to provide packet data services to the mobile communication devices;
a wireless local area network (WLAN) having at least one access point (AP) that communicates with a mobile communication device located in an access area via WLAN radio links, and an access point gateway connected between said AP and said packet data serving node to allow for continuity of a packet data service to said mobile communication device by switching a packet data service connection for said mobile communication device between said WLAN and said WWAN; and
a mechanism for authentication, authorization, and accounting (AAA) common to said WWAN and said WLAN.
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Accused Products
Abstract
Interconnection and integration of a WWAN and a WLAN to provide continuous packet data services to mobile users where each mobile access terminal is configured to support both air links with the WWAN and WLAN. The WWAN may be a CDMA2000 system and the WLAN may be an IEEE 802.11 system.
133 Citations
32 Claims
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1. A wireless communication system, comprising:
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a wireless wide area network (WWAN) having base transceiver stations spatially distributed to communicate with mobile communication devices via WWAN radio links, base station controllers each coupled to a plurality of base transceiver stations, and a data communication system comprising (1) packet control function devices respectively connected to said base station controllers to transmit data packets to and from the mobile communication devices via said base transceiver stations, and (2) a packet data serving node connected to said packet control function devices and a packet data network to provide packet data services to the mobile communication devices; a wireless local area network (WLAN) having at least one access point (AP) that communicates with a mobile communication device located in an access area via WLAN radio links, and an access point gateway connected between said AP and said packet data serving node to allow for continuity of a packet data service to said mobile communication device by switching a packet data service connection for said mobile communication device between said WLAN and said WWAN; and a mechanism for authentication, authorization, and accounting (AAA) common to said WWAN and said WLAN. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A communication system, comprising:
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a CDMA network coupled to an IP network to provide packet data service to mobile communication devices; a wireless local area network (WLAN) having at least one access point (AP) that communicates with a mobile communication device located in an access area of said AP, and an access point gateway (APGW) connected between said AP and one packet data serving node in said CDMA network to allow for continuity of a packet data service to said mobile communication device by switching a packet data service connection for said mobile communication device between said WLAN and said CDMA network; and a mechanism for authentication, authorization, and accounting (AAA) common to said CDMA network and said WLAN. - View Dependent Claims (17, 18, 19, 20)
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21. A method, comprising:
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providing an access point gateway between an access point in a WLAN and a packet data service node in a CDMA2000 WWAN to interconnect said WLAN and said WWAN; using an access terminal that has both a WLAN interface and a interface to communicate with said WLAN and said WWAN; using a control mechanism in said access terminal to determine which of said WLAN and said WWAN is to be used for a packet data service according to a signal parameter detected by said access terminal; authenticating, authorizing, and accounting the communication to said WLAN and said WWAN by a mechanism common to said WLAN and said WWAN; and controlling switching between a communication between said WLAN and said WWAN to allow for said access terminal to roam in said WLAN and said WWAN without an interruption to said packet data service. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A wireless communication system, comprising:
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a CDMA network coupled to an IP network to provide packet data service to mobile communication devices; and a wireless local area network (WLAN) having at least one access point (AP) that communicates with a mobile communication device located in an access area of said AP, and an access point gateway (APGW) connected between said AP and one packet data serving node in said CDMA network to allow for continuity of a packet data service to said mobile communication device by switching a packet data service connection for said mobile communication device between said WLAN and said ODMA network, wherein the CDMA network and WLAN enable a handoff module in the mobile communication device to switch said packet data service connection. - View Dependent Claims (29, 30, 31, 32)
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Specification