[미국특허]
Dual mode subscriber unit for short range, high rate and long range, lower rate data communications
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04Q-007/24
H04B-001/38
출원번호
US-0400136
(1999-09-21)
발명자
/ 주소
Gorsuch, Thomas E.
출원인 / 주소
Tantivy Communications, Inc.
대리인 / 주소
Hamilton, Brook, Smith & Reynolds, P.C.
인용정보
피인용 횟수 :
115인용 특허 :
13
초록▼
A technique for communicating with a local area network (LAN) via a wireless connection determines whether a first short-range, high-speed, wireless communication path is available and connects to the LAN using a longer range, lower speed wireless communication path if the short-range, high-speed wi
A technique for communicating with a local area network (LAN) via a wireless connection determines whether a first short-range, high-speed, wireless communication path is available and connects to the LAN using a longer range, lower speed wireless communication path if the short-range, high-speed wireless communication path is not available. The low-range, high-speed wireless communication path is a wireless LAN connection such as an IEEE 802.11-compliant wireless LAN and the long-range, low-speed wireless communication mode is a cellular CDMA-type connection. Determining whether the first IEEE 802.11 mode is available can be done by detecting a beacon signal, or by transmitting a probe request message and detecting a probe response message in response to the probe request, indicating the presence or availability of the short-range, high-speed wireless communication path. Alternatively, the availability of short-range, high-speed wireless communication path can be detected by simply detecting activity on it.
대표청구항▼
A technique for communicating with a local area network (LAN) via a wireless connection determines whether a first short-range, high-speed, wireless communication path is available and connects to the LAN using a longer range, lower speed wireless communication path if the short-range, high-speed wi
A technique for communicating with a local area network (LAN) via a wireless connection determines whether a first short-range, high-speed, wireless communication path is available and connects to the LAN using a longer range, lower speed wireless communication path if the short-range, high-speed wireless communication path is not available. The low-range, high-speed wireless communication path is a wireless LAN connection such as an IEEE 802.11-compliant wireless LAN and the long-range, low-speed wireless communication mode is a cellular CDMA-type connection. Determining whether the first IEEE 802.11 mode is available can be done by detecting a beacon signal, or by transmitting a probe request message and detecting a probe response message in response to the probe request, indicating the presence or availability of the short-range, high-speed wireless communication path. Alternatively, the availability of short-range, high-speed wireless communication path can be detected by simply detecting activity on it. t (HA) in a home H.323 server further comprises: setting up call forwarding from the home wireless network to the voice and data service provider's network; and obtaining a Mobile IP shared secret from the voice and data service provider's network, wherein the step of setting up call forwarding from the home wireless network to the voice and data service provider's network further comprises: obtaining a telephone number for call forwarding from the voice and data service provider; and obtaining the IP address of the HA in the home H.323 server from the voice and data service provider, wherein the step of registering with a visited H.323 server in the visited wireless network to establish the second end of the IP tunnel within the FA further comprises: obtaining a dynamic IP address from the home H.323 server by the visited H.323 server using Dynamic Host Configuration Protocol (DHCP); relaying the dynamic IP address from the home H.323 server via the visited wireless network to the user's mobile device; authenticating the connection by the user's mobile device using the Mobile IP shared secret; and establishing the IP tunnel by the user's mobile device. 2. The method as in claim 1, further comprising: collecting billing information from the visited wireless network by the visited wireless service provider; and billing the user by the visited wireless service provider responsive to the billing information collected and the user's identified payment means. 3. The method as in claim 2, wherein the user's payment means comprises credit card information and wherein the step of identifying the user's payment means to the visited wireless network further comprises: establishing a Diffie-Hellman temporary shared secret between the user's mobile device and the visited wireless network; securely transmitting the user's credit card information to the visited wireless service provider via the visited wireless network using the temporary shared secret; and verifying the validity of the user's credit card information by the visited wireless network. 4. The method as in claim 3, wherein the step of securely transmitting the user's credit card information further comprises retrieving previously stored credit card information within the user's mobile device. 5. The method as in claim 3, wherein the step of securely transmitting the user's credit card information further comprises the user entering credit card information into the user's mobile device. 6. The method as in claim 1, wherein the step of establishing the IP tunnel further comprises: updating a phone-number-to-IP-address table in the home H.323 server; updating a mobility binding table in the HA; and updating a IP-address-to-phone-number table in the visited H.323 server. 7. The method as in claim 1, wherein the step of delivering calls to the user's mobile device via the IP tunnel further comprises: conversion of a circuit call for delivery to packets by the home H.323 server; forwarding the packets via the established IP tunnel; reassembling the forwarded packets into a reassembled circuit call by the visited H.323 server; and transmitting the reassembled circuit call over-the-air to the user's mobile device via the visited wireless network. 8. The method as in claim 7, wherein the step of delivering calls to the user's mobile device via the IP tunnel further comprises: receiving a response over-the-air from the user's mobile device by the visited wireless network; conversion of the response to packets by the visited H.323 server; forwarding the packets via the established IP tunnel; and reassembling the forwarded packets into a reassembled circuit call response for delivery by the home H.323 server. 9. The method as in claim 8, wherein the user's payment means comprises credit card information and wherein the step of identifying the user's payment means to the visited wireless network further comprises: establishing a D
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