Patent · US Expired

Point to multipoint network

US7154879B1 · kind B1 · utility

5Cited by

6References

16Claims

0Family size

Assignee

Nortel Networks Limited · CA

Inventors

Robert Pfeffer · Bad Homburg vor der Höhe, DE
David Mann · Belmont, US
Brian Unitt · Chelmsford, GB

Key dates

Filing date	May 29, 2001
Grant date	Dec 26, 2006
Priority date	—
Expiry date	Sep 30, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH04J3/1694
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A point-to-multipoint network arrangement, method of operation and related signals for a network comprising a head-end station and at least one subscriber station connected to the head-end by means of a shared medium high-speed point-to-multipoint network (preferably a passive optical network). The method involves transmitting data upstream using a packet-switched transport protocol (e.g. Ethernet) over TDMA. By using high-speed upstream transmission with relatively long time slots and relatively short guard bands, the need for complex ranging schemes is obviated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.