Envelope packet architecture for broadband engine

US7975064B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Michael Joseph Carnevale · Rochester, US
• Scott Douglas Clark · Rochester, US
• David Wayne Hill · Cary, US
• Charles Ray Johns · Austin, US
• Thomas K. Pokrandt · Pine Island, US
• Jeffrey Joseph Ruedinger · Rochester, US
• Dorothy Marie Thelen · Rochester, US

Key dates

• Filing date: Sep 16, 2004
• Grant date: Jul 5, 2011
• Expiry date: Jan 19, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L1/188
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A mechanism provides for sending an envelope and replying to an envelope. A transmitter is configured to send an envelope. A receiver is coupled to the transmitter, wherein the receiver is configured to receive the envelope and generate a reply envelope. A send buffer is coupled to the transmitter. A receive buffer is coupled to the receiver. A retry timer is coupled to the transmitter, wherein the retry timer is configured to reset upon the receipt of a reply envelope correlated to the transmit envelope. The transmitter is configured to retransmit an envelope if the transmitter does not receive a corresponding reply envelope within a selected time period as determined by the retry timer. This leads to a decrease in the total number of envelopes, transmitted from both the transmitter and the receiver.