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Adaptive Dial-up Connectivity: Network-based

IP.com Disclosure Number: IPCOM000022369D
Original Publication Date: 2004-Mar-11
Included in the Prior Art Database: 2004-Mar-11
Document File: 2 page(s) / 28K

Publishing Venue

IBM

Abstract

The core idea of this invention is that the network provider is able to send a modem a renegotiation request whenever it has been determined that the quality of service has changed to the level that renegotiation is warranted. This invention uses the functionality that has been added to modems which allows modems to renegotiate data rate, which is the subject of a related invention disclosure.

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Adaptive Dial-up Connectivity: Network-based

Analog dial-up network connections are infamous for their problems. The actual data rate is usually considerably less than the maximum possible so that a user may attempt to dial and connect several times in order to attempt to get a higher data rate. However, once the data rate is established it cannot be changed even if the line quality were to improve during the session. On the other hand, if the quality of telephone connection deteriorates, there may be several retries attempted by the modem and subsequently, the connection may be dropped, the session is lost, and the user must reconnect. This certainly detracts from the user experience when using analog lines to connect computer equipment.

Broadband access is becoming more common, but connectivity for most users is still provided by a modem and analog telephone line. This invention provides enhancements to network providers, wherein modems in use are instructed to renegotiate data rate whenever the network provider has established that quality of service has changed to the point that modem renegotiation should be accomplished. If network provider has established that quality of service has improved, the modems in question will renegotiate at a higher data rate, and if the quality of service has degraded, the modems will renegotiate at a lower data rate, thus ensuring that at least the connection will not be dropped since the modems are still able to communicate at the lower rate, rather than attempting to conduct the session at a data rate that is not reliable.

The core idea...