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IP reachability through multi-channel wireless interface between a gateway and Internet devices

IP.com Disclosure Number: IPCOM000014237D
Original Publication Date: 2001-Jul-01
Included in the Prior Art Database: 2003-Jun-19
Document File: 4 page(s) / 150K

Publishing Venue

IBM

Abstract

Title: IP reachability through multi-channel wireless interface between a gateway and Internet devices

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  IP reachability through multi-channel wireless interface between a gateway and Internet devices

  Title: IP reachability through multi-channel wireless interface between a gateway and Internet devices

Disclosed is a system that includes a gateway and multiple Internet appliances. The gateway and appliances are connected through wireless interface such as Bluetooth. The Bluetooth has the master-slave multiple channel communication capability as its basic function: 7 active channels and 255 park channels can concurrently established between the master and the slaves. The gateway terminates all Internet connections of a group of appliances through the wireless channels. The gateway is connected to the outside network such as the Internet, through telephone line, ISDN, Cable TV line, or xSDL.

One typical example of the gateway is a home gateway. Many appliances in a home such as, TV, phones, game consols, video recorders, video cameras, audio systems, refrigerators, microwave oven, home security sensors, and home power control lines, will be going to be connected to the Internet in the future. There will exist several tens of devices at home that are connected to the Internet. In order to control the number of devices at home that connect to the Internet, a home gateway will be introduced to each home. The home gateway is kept "power-on" for 24 hours a day and manages multiple sessions of home appliances at a time. The main functions of the disclosed gateway are as follows:

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1. To recognize and authenticate registered appliances.

When appliances are connected to a gateway through wireless interface, it is important for the gateway to allow to connect only devices that belong to the home, because the gateway should not be connected to other homes' devices. In other words, a gateway should segregate wireless connections to appliances. For the purpose, the gateway has capability to register its belonging appliances and to allow connections only to the pre-registered devices (in a home).

2. To connect appliances to the Internet only when the appliances are in use.

In a home, not all appliances are active at a time. A few appliances are active at a time even when several tens of devices are registered. Internet TV is active only when it is under use, an Internet phone is active only when it becomes on-line and in use, and home security sensor can be active only when it is sensed. Many appliances are turned on only when they are in use. In other words, appliances that are turned off, are not necessarily connected to the gateway. The home gateway has a capability to connect appliances only when they are turned on and used. Since the active channel of the Bluetooth is limited to s...